Fixes too-frequent save of overview json. Resets failure count on upload.

# Conflicts:
#	Tests/CodexReleaseTests/MarketTests/ContractSuccessfulTest.cs

.dockerignore

@@ -0,0 +1,30 @@
+**/.classpath
+**/.dockerignore
+**/.env
+**/.git
+**/.gitignore
+**/.project
+**/.settings
+**/.toolstarget
+**/.vs
+**/.vscode
+**/*.*proj.user
+**/*.dbmdl
+**/*.jfm
+**/azds.yaml
+**/bin
+**/charts
+**/docker-compose*
+**/Dockerfile*
+**/node_modules
+**/npm-debug.log
+**/obj
+**/secrets.dev.yaml
+**/values.dev.yaml
+LICENSE
+README.md
+!**/.gitignore
+!.git/HEAD
+!.git/config
+!.git/packed-refs
+!.git/refs/heads/**

.gitattributes

@@ -0,0 +1,10 @@
+# Set default behavior to automatically normalize line endings.
+* text=auto
+
+# Force bash scripts to always use lf line endings so that if a repo is accessed
+# in Unix via a file share from Windows, the scripts will work.
+*.sh text eol=lf
+
+# Likewise, force cmd and batch scripts to always use crlf
+*.cmd text eol=crlf
+*.bat text eol=crlf

.github/workflows/docker-autoclient.yml

@@ -1,5 +1,6 @@
 name: Docker - AutoClient
 
+
 on:
   push:
     branches:
@@ -12,15 +13,15 @@ on:
       - 'Framework/**'
       - 'ProjectPlugins/**'
       - .github/workflows/docker-autoclient.yml
-      - .github/workflows/docker-reusable.yml
   workflow_dispatch:
 
+
 jobs:
   build-and-push:
     name: Build and Push
-    uses: ./.github/workflows/docker-reusable.yml
+    uses: codex-storage/github-actions/.github/workflows/docker-reusable.yml@master
     with:
       docker_file: Tools/AutoClient/docker/Dockerfile
-      docker_repo: codexstorage/codex-autoclient
+      dockerhub_repo: codexstorage/codex-autoclient
+      tag_latest: ${{ github.ref_name == github.event.repository.default_branch || startsWith(github.ref, 'refs/tags/') }}
     secrets: inherit
-

.github/workflows/docker-discordbot.yml

@@ -13,16 +13,15 @@ on:
       - 'Framework/**'
       - 'ProjectPlugins/**'
       - .github/workflows/docker-discordbot.yml
-      - .github/workflows/docker-reusable.yml
   workflow_dispatch:
 
 
 jobs:
   build-and-push:
     name: Build and Push
-    uses: ./.github/workflows/docker-reusable.yml
+    uses: codex-storage/github-actions/.github/workflows/docker-reusable.yml@master
     with:
       docker_file: Tools/BiblioTech/docker/Dockerfile
-      docker_repo: codexstorage/codex-discordbot
+      dockerhub_repo: codexstorage/codex-discordbot
+      tag_latest: ${{ github.ref_name == github.event.repository.default_branch || startsWith(github.ref, 'refs/tags/') }}
     secrets: inherit
-

.github/workflows/docker-keymaker.yml

@@ -11,17 +11,16 @@ on:
       - 'Tools/KeyMaker/**'
       - 'Framework/**'
       - 'ProjectPlugins/**'
-      - .github/workflows/docker-KeyMaker.yml
-      - .github/workflows/docker-reusable.yml
+      - .github/workflows/docker-keymaker.yml
   workflow_dispatch:
 
 
 jobs:
   build-and-push:
     name: Build and Push
-    uses: ./.github/workflows/docker-reusable.yml
+    uses: codex-storage/github-actions/.github/workflows/docker-reusable.yml@master
     with:
       docker_file: Tools/KeyMaker/docker/Dockerfile
-      docker_repo: codexstorage/codex-keymaker
+      dockerhub_repo: codexstorage/codex-keymaker
+      tag_latest: ${{ github.ref_name == github.event.repository.default_branch || startsWith(github.ref, 'refs/tags/') }}
     secrets: inherit
-

.github/workflows/docker-marketinsights.yml

@@ -0,0 +1,26 @@
+name: Docker - MarketInsights API
+
+
+on:
+  push:
+    branches:
+      - master
+    tags:
+      - 'v*.*.*'
+    paths:
+      - 'Tools/MarketInsights/**'
+      - 'Framework/**'
+      - 'ProjectPlugins/**'
+      - .github/workflows/docker-marketinsights.yml
+  workflow_dispatch:
+
+
+jobs:
+  build-and-push:
+    name: Build and Push
+    uses: codex-storage/github-actions/.github/workflows/docker-reusable.yml@master
+    with:
+      docker_file: Tools/MarketInsights/Dockerfile
+      dockerhub_repo: codexstorage/codex-marketinsights
+      tag_latest: ${{ github.ref_name == github.event.repository.default_branch || startsWith(github.ref, 'refs/tags/') }}
+    secrets: inherit

.github/workflows/docker-reusable.yml

@@ -1,178 +0,0 @@
-name: Reusable - Docker
-
-
-on:
-  workflow_call:
-    inputs:
-      docker_file:
-        default: docker/Dockerfile
-        description: Dockerfile
-        required: false
-        type: string
-      docker_repo:
-        default: codexstorage/cs-codex-dist-tests
-        description: DockerHub repository
-        required: false
-        type: string
-      tag_latest:
-        default: true
-        description: Set latest tag for Docker images
-        required: false
-        type: boolean
-      tag_sha:
-        default: true
-        description: Set Git short commit as Docker tag
-        required: false
-        type: boolean
-      tag_suffix:
-        default: ''
-        description: Suffix for Docker images tag
-        required: false
-        type: string
-
-
-env:
-  DOCKER_FILE: ${{ inputs.docker_file }}
-  DOCKER_REPO: ${{ inputs.docker_repo }}
-  TAG_LATEST: ${{ inputs.tag_latest }}
-  TAG_SHA: ${{ inputs.tag_sha }}
-  TAG_SUFFIX: ${{ inputs.tag_suffix }}
-
-
-jobs:
-  # Build platform specific image
-  build:
-    strategy:
-      fail-fast: true
-      matrix:
-        target:
-          - os: linux
-            arch: amd64
-          - os: linux
-            arch: arm64
-        include:
-          - target:
-              os: linux
-              arch: amd64
-            builder: ubuntu-22.04
-          - target:
-              os: linux
-              arch: arm64
-            builder: buildjet-4vcpu-ubuntu-2204-arm
-
-    name: Build ${{ matrix.target.os }}/${{ matrix.target.arch }}
-    runs-on: ${{ matrix.builder }}
-    env:
-      PLATFORM: ${{ format('{0}/{1}', 'linux', matrix.target.arch) }}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Docker - Meta
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ${{ env.DOCKER_REPO }}
-
-      - name: Docker - Set up Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Docker - Login to Docker Hub
-        uses: docker/login-action@v3
-        with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-
-      - name: Docker - Build and Push by digest
-        id: build
-        uses: docker/build-push-action@v5
-        with:
-          context: .
-          file: ${{ env.DOCKER_FILE }}
-          platforms: ${{ env.PLATFORM }}
-          push: true
-          labels: ${{ steps.meta.outputs.labels }}
-          outputs: type=image,name=${{ env.DOCKER_REPO }},push-by-digest=true,name-canonical=true,push=true
-
-      - name: Docker - Export digest
-        run: |
-          mkdir -p /tmp/digests
-          digest="${{ steps.build.outputs.digest }}"
-          touch "/tmp/digests/${digest#sha256:}"
-
-      - name: Docker - Upload digest
-        uses: actions/upload-artifact@v4
-        with:
-          name: digests-${{ matrix.target.arch }}
-          path: /tmp/digests
-          if-no-files-found: error
-          retention-days: 1
-
-
-  # Publish multi-platform image
-  publish:
-    name: Publish multi-platform image
-    runs-on: ubuntu-latest
-    needs: build
-    steps:
-      - name: Docker - Variables
-        run: |
-          # Adjust custom suffix when set and
-          if [[ -n "${{ env.TAG_SUFFIX }}" ]]; then
-            echo "TAG_SUFFIX=-${{ env.TAG_SUFFIX }}" >>$GITHUB_ENV
-          fi
-          # Disable SHA tags on tagged release
-          if [[ ${{ startsWith(github.ref, 'refs/tags/') }} == "true" ]]; then
-            echo "TAG_SHA=false" >>$GITHUB_ENV
-          fi
-          # Handle latest and latest-custom using raw
-          if [[ ${{ env.TAG_SHA }} == "false" ]]; then
-            echo "TAG_LATEST=false" >>$GITHUB_ENV
-            echo "TAG_RAW=true" >>$GITHUB_ENV
-            if [[ -z "${{ env.TAG_SUFFIX }}" ]]; then
-              echo "TAG_RAW_VALUE=latest" >>$GITHUB_ENV
-            else
-              echo "TAG_RAW_VALUE=latest-{{ env.TAG_SUFFIX }}" >>$GITHUB_ENV
-            fi
-          else
-            echo "TAG_RAW=false" >>$GITHUB_ENV
-          fi
-
-      - name: Docker - Download digests
-        uses: actions/download-artifact@v4
-        with:
-          pattern: digests-*
-          merge-multiple: true
-          path: /tmp/digests
-
-      - name: Docker - Set up Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Docker - Meta
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ${{ env.DOCKER_REPO }}
-          flavor: |
-            latest=${{ env.TAG_LATEST }}
-            suffix=${{ env.TAG_SUFFIX }},onlatest=true
-          tags: |
-            type=semver,pattern={{version}}
-            type=raw,enable=${{ env.TAG_RAW }},value=latest
-            type=sha,enable=${{ env.TAG_SHA }}
-
-      - name: Docker - Login to Docker Hub
-        uses: docker/login-action@v3
-        with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-
-      - name: Docker - Create manifest list and push
-        working-directory: /tmp/digests
-        run: |
-          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
-            $(printf '${{ env.DOCKER_REPO }}@sha256:%s ' *)
-
-      - name: Docker - Inspect image
-        run: |
-          docker buildx imagetools inspect ${{ env.DOCKER_REPO }}:${{ steps.meta.outputs.version }}

.github/workflows/docker-rewarder.yml

@@ -1,5 +1,6 @@
 name: Docker - Rewarder Bot
 
+
 on:
   push:
     branches:
@@ -12,15 +13,15 @@ on:
       - 'Framework/**'
       - 'ProjectPlugins/**'
       - .github/workflows/docker-rewarder.yml
-      - .github/workflows/docker-reusable.yml
   workflow_dispatch:
 
+
 jobs:
   build-and-push:
     name: Build and Push
-    uses: ./.github/workflows/docker-reusable.yml
+    uses: codex-storage/github-actions/.github/workflows/docker-reusable.yml@master
     with:
       docker_file: Tools/TestNetRewarder/docker/Dockerfile
-      docker_repo: codexstorage/codex-rewarderbot
+      dockerhub_repo: codexstorage/codex-rewarderbot
+      tag_latest: ${{ github.ref_name == github.event.repository.default_branch || startsWith(github.ref, 'refs/tags/') }}
     secrets: inherit
-

.github/workflows/docker-runner.yml

@@ -11,12 +11,15 @@ on:
       - docker/Dockerfile
       - docker/docker-entrypoint.sh
       - .github/workflows/docker-runner.yml
-      - .github/workflows/docker-reusable.yml
   workflow_dispatch:
 
 
 jobs:
   build-and-push:
     name: Build and Push
-    uses: ./.github/workflows/docker-reusable.yml
+    uses: codex-storage/github-actions/.github/workflows/docker-reusable.yml@master
+    with:
+      docker_file: docker/Dockerfile
+      dockerhub_repo: codexstorage/cs-codex-dist-tests
+      tag_latest: ${{ github.ref_name == github.event.repository.default_branch || startsWith(github.ref, 'refs/tags/') }}
     secrets: inherit

.github/workflows/run-continuous-tests.yaml

@@ -80,7 +80,7 @@ env:
   TESTS_TARGET_DURATION: 2d
   TESTS_FILTER: ""
   TESTS_CLEANUP: true
-  JOB_MANIFEST: docker/continuous-tests-job.yaml
+  JOB_MANIFEST: docker/job-continuous-tests.yaml
   KUBE_CONFIG: ${{ secrets.KUBE_CONFIG }}
   KUBE_VERSION: v1.28.2
 
@@ -146,7 +146,7 @@ jobs:
         if: false
         run: |
           # Variables
-          # We need more than 300 seconds because Auto Scaler may take 3 minutes to tun a node 
+          # We need more than 300 seconds because Auto Scaler may take 3 minutes to run a node
           duration=600
           namespace="${{ env.NAMESPACE }}"
           pod=$(kubectl get pod --selector job-name=${{ env.NAMEPREFIX }} -o jsonpath="{.items[0].metadata.name}")

.github/workflows/run-dist-tests.yaml

@@ -32,7 +32,7 @@ env:
   NAMEPREFIX: d-tests-runner
   NAMESPACE: default
   COMMAND: dotnet test Tests/CodexTests
-  JOB_MANIFEST: docker/dist-tests-job.yaml
+  JOB_MANIFEST: docker/job-dist-tests.yaml
   KUBE_CONFIG: ${{ secrets.KUBE_CONFIG }}
   KUBE_VERSION: v1.28.2
 

.github/workflows/run-release-tests.yaml

@@ -0,0 +1,122 @@
+name: Run Release Tests
+
+
+on:
+  workflow_dispatch:
+    inputs:
+      codexdockerimage:
+        description: "Codex Docker image (example: 'codexstorage/nim-codex:0.1.8-dist-tests')"
+        required: true
+        type: string
+  workflow_call:
+    inputs:
+      source:
+        description: Repository with tests (current)
+        required: false
+        type: string
+      branch:
+        description: Branch with tests (master)
+        required: false
+        type: string
+      codexdockerimage:
+        description: "Codex Docker image (example: 'codexstorage/nim-codex:0.1.8-dist-tests')"
+        required: true
+        type: string
+      workflow_source:
+        description: Workflow source
+        required: false
+        type: string
+        default: ''
+
+env:
+  SOURCE: ${{ format('{0}/{1}', github.server_url, github.repository) }}
+  BRANCH: ${{ github.ref_name }}
+  CODEXDOCKERIMAGE: codexstorage/nim-codex:latest-dist-tests
+  TEST_TYPE: release-tests
+  NAMEPREFIX: r-tests
+  NAMESPACE: default
+  JOB_MANIFEST: docker/job-release-tests.yaml
+  COMMAND: dotnet test Tests/CodexReleaseTests
+  KUBE_CONFIG: ${{ secrets.KUBE_CONFIG }}
+  KUBE_VERSION: v1.30.5
+
+
+jobs:
+  run_tests:
+    name: Run Release Tests
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          repository: ${{ inputs.workflow_source }}
+
+      - name: Variables
+        run: |
+          RUNID=$(date +%Y%m%d-%H%M%S)
+          echo "RUNID=${RUNID}" >> $GITHUB_ENV
+          echo "TESTID=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
+          [[ -n "${{ inputs.source }}" ]] && echo "SOURCE=${{ inputs.source }}" >>"$GITHUB_ENV" || echo "SOURCE=${{ env.SOURCE }}" >>"$GITHUB_ENV"
+          [[ -n "${{ inputs.branch }}" ]] && echo "BRANCH=${{ inputs.branch }}" >>"$GITHUB_ENV" || echo "BRANCH=${{ env.BRANCH }}" >>"$GITHUB_ENV"
+          [[ -n "${{ inputs.codexdockerimage }}" ]] && echo "CODEXDOCKERIMAGE=${{ inputs.codexdockerimage }}" >>"$GITHUB_ENV" || echo "CODEXDOCKERIMAGE=${{ env.CODEXDOCKERIMAGE }}" >>"$GITHUB_ENV"
+          [[ -n "${{ inputs.nameprefix }}" ]] && NAMEPREFIX="`awk '{ print tolower($0) }' <<< ${{ inputs.nameprefix }}`" || NAMEPREFIX="`awk '{ print tolower($0) }' <<< ${{ env.NAMEPREFIX }}`"
+          echo "NAMEPREFIX=${NAMEPREFIX}-${RUNID}" >>"$GITHUB_ENV"
+          [[ -n "${{ inputs.namespace }}" ]] && echo "NAMESPACE=${{ inputs.namespace }}" >>"$GITHUB_ENV" || echo "NAMESPACE=${{ env.NAMESPACE }}" >>"$GITHUB_ENV"
+          [[ -n "${{ inputs.command }}" ]] && COMMAND="${{ inputs.command }}" || COMMAND="${{ env.COMMAND }}"
+          echo "COMMAND=$(jq -c 'split(" ")' <<< '"'${COMMAND}'"')" >>"$GITHUB_ENV"
+
+      - name: Kubectl - Install ${{ env.KUBE_VERSION }}
+        uses: azure/setup-kubectl@v4
+        with:
+          version: ${{ env.KUBE_VERSION }}
+
+      - name: Kubectl - Kubeconfig
+        run: |
+          mkdir -p "${HOME}"/.kube
+          echo "${{ env.KUBE_CONFIG }}" | base64 -d > "${HOME}"/.kube/config
+
+      - name: Kubectl - Create Job to run tests
+        run: |
+          envsubst < ${{ env.JOB_MANIFEST }} | kubectl apply -f -
+
+      - name: Tests Identification
+        run: |
+          echo "----"
+          echo "Repository: ${{ env.SOURCE }}"
+          echo "Branch: ${{ env.BRANCH }}"
+          echo "Runner job: ${{ env.NAMEPREFIX }}"
+          echo "Runner pod: $(kubectl get pod --selector job-name=${{ env.NAMEPREFIX }} -ojsonpath='{.items[0].metadata.name}')"
+          echo "Runner namespace: ${{ env.NAMESPACE }}"
+          echo "----"
+
+      - name: Show Runner logs
+        run: |
+          # Variables
+          # We need more than 300 seconds because Auto Scaler may take 3 minutes to tun a node 
+          namespace="${{ env.NAMESPACE }}"
+          pod=$(kubectl get pod --selector job-name=${{ env.NAMEPREFIX }} -o jsonpath='{.items[0].metadata.name}')
+
+          # Check Pod status
+          WAIT=120
+          SECONDS=0
+          sleep=1
+          while (( SECONDS < WAIT )); do
+            phase=$(kubectl get pod ${pod} -n ${namespace} -o jsonpath='{.status.phase}')
+            [[ "${phase}" == "Running" ]] && { echo "Pod $pod is in the $phase state - Get the logs"; break; } || { echo "Pod $pod is in the $phase state - Retry in $sleep second(s) / $((WAIT - SECONDS))"; }
+            sleep $sleep
+          done
+
+          # Get logs
+          while [[ $(kubectl get pod ${pod} -n ${namespace} -o jsonpath='{.status.phase}') == "Running" ]]; do
+            echo "Show ${pod} logs ..."
+            echo "----"
+            kubectl logs $pod -n $namespace -f || true
+            sleep 1
+          done
+
+      - name: Set workflow status from job status
+        run: |
+          sleep 5
+          job_status=$(kubectl get jobs ${{ env.NAMEPREFIX }} -n ${{ env.NAMESPACE }} -o jsonpath='{.status.conditions[0].type}')
+          echo "Job status: $job_status"
+          if [[ "${job_status}" != "Complete" ]]; then exit 1; fi

.gitignore

@@ -3,3 +3,4 @@ obj
 bin
 .vscode
 Tools/AutoClient/datapath
+.editorconfig

Framework/ArgsUniform/ArgsUniform.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>

Framework/BlockchainUtils/BlockCache.cs

@@ -1,4 +1,4 @@
-namespace NethereumWorkflow.BlockUtils
+namespace BlockchainUtils
 {
     public class BlockCache
     {

Framework/BlockchainUtils/BlockTimeEntry.cs

@@ -1,4 +1,4 @@
-namespace NethereumWorkflow.BlockUtils
+namespace BlockchainUtils
 {
     public class BlockTimeEntry
     {

Framework/BlockchainUtils/BlockTimeFinder.cs

@@ -1,6 +1,6 @@
 using Logging;
 
-namespace NethereumWorkflow.BlockUtils
+namespace BlockchainUtils
 {
     public class BlockTimeFinder
     {
@@ -29,7 +29,8 @@ namespace NethereumWorkflow.BlockUtils
         public ulong? GetHighestBlockNumberBefore(DateTime moment)
         {
             bounds.Initialize();
-            if (moment <= bounds.Genesis.Utc) return null;
+            if (moment < bounds.Genesis.Utc) return null;
+            if (moment == bounds.Genesis.Utc) return bounds.Genesis.BlockNumber;
             if (moment >= bounds.Current.Utc) return bounds.Current.BlockNumber;
 
             return Log(() => Search(bounds.Genesis, bounds.Current, moment, HighestBeforeSelector));
@@ -38,7 +39,8 @@ namespace NethereumWorkflow.BlockUtils
         public ulong? GetLowestBlockNumberAfter(DateTime moment)
         {
             bounds.Initialize();
-            if (moment >= bounds.Current.Utc) return null;
+            if (moment > bounds.Current.Utc) return null;
+            if (moment == bounds.Current.Utc) return bounds.Current.BlockNumber;
             if (moment <= bounds.Genesis.Utc) return bounds.Genesis.BlockNumber;
 
             return Log(()=> Search(bounds.Genesis, bounds.Current, moment, LowestAfterSelector)); ;

Framework/BlockchainUtils/BlockchainBounds.cs

@@ -1,5 +1,11 @@
-namespace NethereumWorkflow.BlockUtils
+namespace BlockchainUtils
 {
+    public interface IWeb3Blocks
+    {
+        ulong GetCurrentBlockNumber();
+        DateTime? GetTimestampForBlock(ulong blockNumber);
+    }
+
     public class BlockchainBounds
     {
         private readonly BlockCache cache;

Framework/BlockchainUtils/BlockchainUtils.csproj

@@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+	<ItemGroup>
+		<PackageReference Include="Nethereum.Web3" Version="4.14.0" />
+	</ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Logging\Logging.csproj" />
+  </ItemGroup>
+
+</Project>

Framework/BlockchainUtils/ConversionExtensions.cs

@@ -1,7 +1,7 @@
 using Nethereum.Hex.HexTypes;
 using System.Numerics;
 
-namespace NethereumWorkflow
+namespace BlockchainUtils
 {
     public static class ConversionExtensions
     {

Framework/Core/Core.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
@@ -9,6 +9,7 @@
   <ItemGroup>
     <ProjectReference Include="..\FileUtils\FileUtils.csproj" />
     <ProjectReference Include="..\KubernetesWorkflow\KubernetesWorkflow.csproj" />
+    <ProjectReference Include="..\WebUtils\WebUtils.csproj" />
   </ItemGroup>
 
 </Project>

Framework/Core/CoreInterface.cs

@@ -1,5 +1,6 @@
 using KubernetesWorkflow;
 using KubernetesWorkflow.Types;
+using Logging;
 
 namespace Core
 {
@@ -30,11 +31,7 @@ namespace Core
         public IDownloadedLog DownloadLog(RunningContainer container, int? tailLines = null)
         {
             var workflow = entryPoint.Tools.CreateWorkflow();
-            var msg = $"Downloading container log for '{container.Name}'";
-            entryPoint.Tools.GetLog().Log(msg);
-            var logHandler = new WriteToFileLogHandler(entryPoint.Tools.GetLog(), msg);
-            workflow.DownloadContainerLog(container, logHandler, tailLines);
-            return new DownloadedLog(logHandler);
+            return workflow.DownloadContainerLog(container, tailLines);
         }
 
         public string ExecuteContainerCommand(IHasContainer containerSource, string command, params string[] args)

Framework/Core/DownloadedLog.cs

@@ -1,80 +0,0 @@
-using KubernetesWorkflow;
-using Logging;
-
-namespace Core
-{
-    public interface IDownloadedLog
-    {
-        void IterateLines(Action<string> action);
-        string[] GetLinesContaining(string expectedString);
-        string[] FindLinesThatContain(params string[] tags);
-        void DeleteFile();
-    }
-
-    internal class DownloadedLog : IDownloadedLog
-    {
-        private readonly LogFile logFile;
-
-        internal DownloadedLog(WriteToFileLogHandler logHandler)
-        {
-            logFile = logHandler.LogFile;
-        }
-
-        public void IterateLines(Action<string> action)
-        {
-            using var file = File.OpenRead(logFile.FullFilename);
-            using var streamReader = new StreamReader(file);
-
-            var line = streamReader.ReadLine();
-            while (line != null)
-            {
-                action(line);
-                line = streamReader.ReadLine();
-            }
-        }
-
-        public string[] GetLinesContaining(string expectedString)
-        {
-            using var file = File.OpenRead(logFile.FullFilename);
-            using var streamReader = new StreamReader(file);
-            var lines = new List<string>();
-
-            var line = streamReader.ReadLine();
-            while (line != null)
-            {
-                if (line.Contains(expectedString))
-                {
-                    lines.Add(line);
-                }
-                line = streamReader.ReadLine();
-            }
-
-            return lines.ToArray(); ;
-        }
-
-        public string[] FindLinesThatContain(params string[] tags)
-        {
-            var result = new List<string>();
-            using var file = File.OpenRead(logFile.FullFilename);
-            using var streamReader = new StreamReader(file);
-
-            var line = streamReader.ReadLine();
-            while (line != null)
-            {
-                if (tags.All(line.Contains))
-                {
-                    result.Add(line);
-                }
-
-                line = streamReader.ReadLine();
-            }
-
-            return result.ToArray();
-        }
-
-        public void DeleteFile()
-        {
-            File.Delete(logFile.FullFilename);
-        }
-    }
-}

Framework/Core/EntryPoint.cs

@@ -1,5 +1,6 @@
 using KubernetesWorkflow;
 using Logging;
+using WebUtils;
 
 namespace Core
 {
@@ -8,16 +9,16 @@ namespace Core
         private readonly IToolsFactory toolsFactory;
         private readonly PluginManager manager = new PluginManager();
 
-        public EntryPoint(ILog log, Configuration configuration, string fileManagerRootFolder, ITimeSet timeSet)
+        public EntryPoint(ILog log, Configuration configuration, string fileManagerRootFolder, IWebCallTimeSet webCallTimeSet, IK8sTimeSet k8STimeSet)
         {
-            toolsFactory = new ToolsFactory(log, configuration, fileManagerRootFolder, timeSet);
+            toolsFactory = new ToolsFactory(log, configuration, fileManagerRootFolder, webCallTimeSet, k8STimeSet);
 
             Tools = toolsFactory.CreateTools();
             manager.InstantiatePlugins(PluginFinder.GetPluginTypes(), toolsFactory);
         }
 
         public EntryPoint(ILog log, Configuration configuration, string fileManagerRootFolder)
-            : this(log, configuration, fileManagerRootFolder, new DefaultTimeSet())
+            : this(log, configuration, fileManagerRootFolder, new DefaultWebCallTimeSet(), new DefaultK8sTimeSet())
         {
         }
 

Framework/Core/PluginTools.cs

@@ -1,12 +1,14 @@
 using FileUtils;
 using KubernetesWorkflow;
 using Logging;
+using WebUtils;
 
 namespace Core
 {
-    public interface IPluginTools : IWorkflowTool, ILogTool, IHttpFactoryTool, IFileTool
+    public interface IPluginTools : IWorkflowTool, ILogTool, IHttpFactory, IFileTool
     {
-        ITimeSet TimeSet { get; }
+        IWebCallTimeSet WebCallTimeSet { get; }
+        IK8sTimeSet K8STimeSet { get; }
 
         /// <summary>
         /// Deletes kubernetes and tracked file resources.
@@ -25,13 +27,6 @@ namespace Core
         ILog GetLog();
     }
 
-    public interface IHttpFactoryTool
-    {
-        IHttp CreateHttp(Action<HttpClient> onClientCreated);
-        IHttp CreateHttp(Action<HttpClient> onClientCreated, ITimeSet timeSet);
-        IHttp CreateHttp();
-    }
-
     public interface IFileTool
     {
         IFileManager GetFileManager();
@@ -40,37 +35,41 @@ namespace Core
     internal class PluginTools : IPluginTools
     {
         private readonly WorkflowCreator workflowCreator;
+        private readonly HttpFactory httpFactory;
         private readonly IFileManager fileManager;
         private readonly LogPrefixer log;
 
-        internal PluginTools(ILog log, WorkflowCreator workflowCreator, string fileManagerRootFolder, ITimeSet timeSet)
+        internal PluginTools(ILog log, WorkflowCreator workflowCreator, string fileManagerRootFolder, IWebCallTimeSet webCallTimeSet, IK8sTimeSet k8STimeSet)
         {
             this.log = new LogPrefixer(log);
             this.workflowCreator = workflowCreator;
-            TimeSet = timeSet;
+            httpFactory = new HttpFactory(log, webCallTimeSet);
+            WebCallTimeSet = webCallTimeSet;
+            K8STimeSet = k8STimeSet;
             fileManager = new FileManager(log, fileManagerRootFolder);
         }
 
-        public ITimeSet TimeSet { get; }
+        public IWebCallTimeSet WebCallTimeSet { get; }
+        public IK8sTimeSet K8STimeSet { get; }
 
         public void ApplyLogPrefix(string prefix)
         {
             log.Prefix = prefix;
         }
 
-        public IHttp CreateHttp(Action<HttpClient> onClientCreated)
+        public IHttp CreateHttp(string id, Action<HttpClient> onClientCreated)
         {
-            return CreateHttp(onClientCreated, TimeSet);
+            return httpFactory.CreateHttp(id, onClientCreated);
         }
 
-        public IHttp CreateHttp(Action<HttpClient> onClientCreated, ITimeSet ts)
+        public IHttp CreateHttp(string id, Action<HttpClient> onClientCreated, IWebCallTimeSet timeSet)
         {
-            return new Http(log, ts, onClientCreated);
+            return httpFactory.CreateHttp(id, onClientCreated, timeSet);
         }
 
-        public IHttp CreateHttp()
+        public IHttp CreateHttp(string id)
         {
-            return new Http(log, TimeSet);
+            return httpFactory.CreateHttp(id);
         }
 
         public IStartupWorkflow CreateWorkflow(string? namespaceOverride = null)

Framework/Core/ToolsFactory.cs

@@ -1,5 +1,6 @@
 using KubernetesWorkflow;
 using Logging;
+using WebUtils;
 
 namespace Core
 {
@@ -13,19 +14,21 @@ namespace Core
         private readonly ILog log;
         private readonly WorkflowCreator workflowCreator;
         private readonly string fileManagerRootFolder;
-        private readonly ITimeSet timeSet;
+        private readonly IWebCallTimeSet webCallTimeSet;
+        private readonly IK8sTimeSet k8STimeSet;
 
-        public ToolsFactory(ILog log, Configuration configuration, string fileManagerRootFolder, ITimeSet timeSet)
+        public ToolsFactory(ILog log, Configuration configuration, string fileManagerRootFolder, IWebCallTimeSet webCallTimeSet, IK8sTimeSet k8STimeSet)
         {
             this.log = log;
             workflowCreator = new WorkflowCreator(log, configuration);
             this.fileManagerRootFolder = fileManagerRootFolder;
-            this.timeSet = timeSet;
+            this.webCallTimeSet = webCallTimeSet;
+            this.k8STimeSet = k8STimeSet;
         }
 
         public PluginTools CreateTools()
         {
-            return new PluginTools(log, workflowCreator, fileManagerRootFolder, timeSet);
+            return new PluginTools(log, workflowCreator, fileManagerRootFolder, webCallTimeSet, k8STimeSet);
         }
     }
 }

Framework/DiscordRewards/DiscordRewards.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>

Framework/DiscordRewards/GiveRewardsCommand.cs

@@ -3,12 +3,12 @@
     public class GiveRewardsCommand
     {
         public RewardUsersCommand[] Rewards { get; set; } = Array.Empty<RewardUsersCommand>();
-        public MarketAverage[] Averages { get; set; } = Array.Empty<MarketAverage>();
-        public string[] EventsOverview { get; set; } = Array.Empty<string>();
+        public ChainEventMessage[] EventsOverview { get; set; } = Array.Empty<ChainEventMessage>();
+        public string[] Errors { get; set; } = Array.Empty<string>();
 
         public bool HasAny()
         {
-            return Rewards.Any() || Averages.Any() || EventsOverview.Any();
+            return Rewards.Any() || EventsOverview.Any();
         }
     }
 
@@ -18,14 +18,9 @@
         public string[] UserAddresses { get; set; } = Array.Empty<string>();
     }
 
-    public class MarketAverage
+    public class ChainEventMessage
     {
-        public int NumberOfFinished { get; set; }
-        public int TimeRangeSeconds { get; set; }
-        public float Price { get; set; }
-        public float Size { get; set; }
-        public float Duration { get; set; }
-        public float Collateral { get; set; }
-        public float ProofProbability { get; set; }
+        public ulong BlockNumber { get; set; }
+        public string Message { get; set; } = string.Empty;
     }
 }

Framework/FileUtils/FileManager.cs

@@ -7,27 +7,35 @@ namespace FileUtils
     {
         TrackedFile CreateEmptyFile(string label = "");
         TrackedFile GenerateFile(ByteSize size, string label = "");
+        TrackedFile GenerateFile(Action<IGenerateOption> options, string label = "");
         void DeleteAllFiles();
         void ScopedFiles(Action action);
         T ScopedFiles<T>(Func<T> action);
     }
 
+    public interface IGenerateOption
+    {
+        IGenerateOption Random(ByteSize size);
+        IGenerateOption StringRepeat(string str, ByteSize size);
+        IGenerateOption StringRepeat(string str, int times);
+        IGenerateOption ByteRepeat(byte[] bytes, ByteSize size);
+        IGenerateOption ByteRepeat(byte[] bytes, int times);
+    }
+
     public class FileManager : IFileManager
     {
-        public const int ChunkSize = 1024 * 1024 * 100;
-        private static NumberSource folderNumberSource = new NumberSource(0);
-        private readonly Random random = new Random();
+        private static readonly NumberSource folderNumberSource = new NumberSource(0);
         private readonly ILog log;
-        private readonly string rootFolder;
         private readonly string folder;
         private readonly List<List<TrackedFile>> fileSetStack = new List<List<TrackedFile>>();
 
+        public const int ChunkSize = 1024 * 1024 * 100;
+
         public FileManager(ILog log, string rootFolder)
         {
             folder = Path.Combine(rootFolder, folderNumberSource.GetNextNumber().ToString("D5"));
 
             this.log = log;
-            this.rootFolder = rootFolder;
         }
 
         public TrackedFile CreateEmptyFile(string label = "")
@@ -41,10 +49,15 @@ namespace FileUtils
             return result;
         }
 
-        public TrackedFile GenerateFile(ByteSize size, string label)
+        public TrackedFile GenerateFile(ByteSize size, string label = "")
+        {
+            return GenerateFile(o => o.Random(size), label);
+        }
+
+        public TrackedFile GenerateFile(Action<IGenerateOption> options, string label = "")
         {
             var sw = Stopwatch.Begin(log);
-            var result = GenerateRandomFile(size, label);
+            var result = RunGenerators(options, label);
             sw.End($"Generated file {result.Describe()}.");
             return result;
         }
@@ -100,26 +113,35 @@ namespace FileUtils
             if (!Directory.GetFiles(folder).Any()) DeleteDirectory();
         }
 
-        private TrackedFile GenerateRandomFile(ByteSize size, string label)
+        private TrackedFile RunGenerators(Action<IGenerateOption> options, string label)
         {
             var result = CreateEmptyFile(label);
-            CheckSpaceAvailable(result, size);
+            var generators = GetGenerators(options);
+            CheckSpaceAvailable(result, generators.GetRequiredSpace());
 
-            GenerateFileBytes(result, size);
+            using var stream = new FileStream(result.Filename, FileMode.Append);
+            generators.Run(stream);
             return result;
         }
 
-        private void CheckSpaceAvailable(TrackedFile testFile, ByteSize size)
+        private GeneratorCollection GetGenerators(Action<IGenerateOption> options)
+        {
+            var result = new GeneratorCollection();
+            options(result);
+            return result;
+        }
+
+        private void CheckSpaceAvailable(TrackedFile testFile, long requiredSize)
         {
             var file = new FileInfo(testFile.Filename);
             var drive = new DriveInfo(file.Directory!.Root.FullName);
 
             var spaceAvailable = drive.TotalFreeSpace;
 
-            if (spaceAvailable < size.SizeInBytes)
+            if (spaceAvailable < requiredSize)
             {
                 var msg = $"Not enough disk space. " +
-                    $"{Formatter.FormatByteSize(size.SizeInBytes)} required. " +
+                    $"{Formatter.FormatByteSize(requiredSize)} required. " +
                     $"{Formatter.FormatByteSize(spaceAvailable)} available.";
 
                 log.Log(msg);
@@ -127,34 +149,6 @@ namespace FileUtils
             }
         }
 
-        private void GenerateFileBytes(TrackedFile result, ByteSize size)
-        {
-            long bytesLeft = size.SizeInBytes;
-            int chunkSize = ChunkSize;
-            while (bytesLeft > 0)
-            {
-                try
-                {
-                    var length = Math.Min(bytesLeft, chunkSize);
-                    AppendRandomBytesToFile(result, length);
-                    bytesLeft -= length;
-                }
-                catch
-                {
-                    chunkSize = chunkSize / 2;
-                    if (chunkSize < 1024) throw;
-                }
-            }
-        }
-
-        private void AppendRandomBytesToFile(TrackedFile result, long length)
-        {
-            var bytes = new byte[length];
-            random.NextBytes(bytes);
-            using var stream = new FileStream(result.Filename, FileMode.Append);
-            stream.Write(bytes, 0, bytes.Length);
-        }
-
         private void EnsureDirectory()
         {
             Directory.CreateDirectory(folder);

Framework/FileUtils/FileUtils.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>

Framework/FileUtils/Generators.cs

@@ -0,0 +1,141 @@
+using System.Text;
+using Utils;
+
+namespace FileUtils
+{
+    public class GeneratorCollection : IGenerateOption
+    {
+        private readonly List<IGenerator> generators = new List<IGenerator>();
+
+        public IGenerateOption ByteRepeat(byte[] bytes, ByteSize size)
+        {
+            var times = size.SizeInBytes / bytes.Length;
+            generators.Add(new ByteRepeater(bytes, times));
+            return this;
+        }
+
+        public IGenerateOption ByteRepeat(byte[] bytes, int times)
+        {
+            generators.Add(new ByteRepeater(bytes, times));
+            return this;
+        }
+
+        public IGenerateOption Random(ByteSize size)
+        {
+            generators.Add(new RandomGenerator(size));
+            return this;
+        }
+
+        public IGenerateOption StringRepeat(string str, ByteSize size)
+        {
+            var times = size.SizeInBytes / str.Length;
+            generators.Add(new StringRepeater(str, times));
+            return this;
+        }
+
+        public IGenerateOption StringRepeat(string str, int times)
+        {
+            generators.Add(new StringRepeater(str, times));
+            return this;
+        }
+
+        public void Run(FileStream file)
+        {
+            foreach (var generator in generators)
+            {
+                generator.Generate(file);
+            }
+        }
+
+        public long GetRequiredSpace()
+        {
+            return generators.Sum(g => g.GetRequiredSpace());
+        }
+    }
+
+    public interface IGenerator
+    {
+        void Generate(FileStream file);
+        long GetRequiredSpace();
+    }
+
+    public class ByteRepeater : IGenerator
+    {
+        private readonly byte[] bytes;
+        private readonly long times;
+
+        public ByteRepeater(byte[] bytes, long times)
+        {
+            this.bytes = bytes;
+            this.times = times;
+        }
+
+        public void Generate(FileStream file)
+        {
+            for (var i = 0; i < times; i++)
+            {
+                file.Write(bytes, 0, bytes.Length);
+            }
+        }
+
+        public long GetRequiredSpace()
+        {
+            return bytes.Length * times;
+        }
+    }
+
+    public class StringRepeater : IGenerator
+    {
+        private readonly string str;
+        private readonly long times;
+
+        public StringRepeater(string str, long times)
+        {
+            this.str = str;
+            this.times = times;
+        }
+
+        public void Generate(FileStream file)
+        {
+            using var writer = new StreamWriter(file);
+            for (var i = 0; i < times; i++)
+            {
+                writer.Write(str);
+            }
+        }
+
+        public long GetRequiredSpace()
+        {
+            return Encoding.ASCII.GetBytes(str).Length * times;
+        }
+    }
+
+    public class RandomGenerator : IGenerator
+    {
+        private readonly Random random = new Random();
+        private readonly ByteSize size;
+
+        public RandomGenerator(ByteSize size)
+        {
+            this.size = size;
+        }
+
+        public void Generate(FileStream file)
+        {
+            var bytesLeft = size.SizeInBytes;
+            while (bytesLeft > 0)
+            {
+                var size = Math.Min(bytesLeft, FileManager.ChunkSize);
+                var bytes = new byte[size];
+                random.NextBytes(bytes);
+                file.Write(bytes, 0, bytes.Length);
+                bytesLeft -= size;
+            }
+        }
+
+        public long GetRequiredSpace()
+        {
+            return size.SizeInBytes;
+        }
+    }
+}

Framework/FileUtils/TrackedFile.cs

@@ -14,6 +14,12 @@ namespace FileUtils
             Label = label;
         }
 
+        public static TrackedFile FromPath(ILog log, string filepath)
+        {
+            // todo: I don't wanne have to do this to call upload.
+            return new TrackedFile(log, filepath, string.Empty);
+        }
+
         public string Filename { get; }
         public string Label { get; }
 

Framework/GethConnector/GethConnector.cs

@@ -1,4 +1,6 @@
-using CodexContractsPlugin;
+using BlockchainUtils;
+using CodexContractsPlugin;
+using CodexContractsPlugin.Marketplace;
 using GethPlugin;
 using Logging;
 
@@ -18,18 +20,29 @@ namespace GethConnector
                 return null;
             }
 
+            var gethNode = new CustomGethNode(log, new BlockCache(), GethInput.GethHost, GethInput.GethPort, GethInput.PrivateKey);
+
+            var config = GetCodexMarketplaceConfig(gethNode, GethInput.MarketplaceAddress);
+
             var contractsDeployment = new CodexContractsDeployment(
+                config: config,
                 marketplaceAddress: GethInput.MarketplaceAddress,
                 abi: GethInput.ABI,
                 tokenAddress: GethInput.TokenAddress
             );
 
-            var gethNode = new CustomGethNode(log, GethInput.GethHost, GethInput.GethPort, GethInput.PrivateKey);
             var contracts = new CodexContractsAccess(log, gethNode, contractsDeployment);
 
             return new GethConnector(gethNode, contracts);
         }
 
+        private static MarketplaceConfig GetCodexMarketplaceConfig(IGethNode gethNode, string marketplaceAddress)
+        {
+            var func = new ConfigurationFunctionBase();
+            var response = gethNode.Call<ConfigurationFunctionBase, ConfigurationOutputDTO>(marketplaceAddress, func);
+            return response.ReturnValue1;
+        }
+
         private GethConnector(IGethNode gethNode, ICodexContracts codexContracts)
         {
             GethNode = gethNode;

Framework/GethConnector/GethConnector.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>

Framework/GethConnector/GethInput.cs

@@ -45,8 +45,12 @@
         private static string? GetEnvVar(List<string> error, string name)
         {
             var result = Environment.GetEnvironmentVariable(name);
-            if (string.IsNullOrEmpty(result)) error.Add($"'{name}' is not set.");
-            return result;
+            if (string.IsNullOrEmpty(result))
+            {
+                error.Add($"'{name}' is not set.");
+                return null;
+            }
+            return result.Trim();
         }
     }
 }

Framework/KubernetesWorkflow/ContainerCrashWatcher.cs

@@ -3,7 +3,7 @@ using Logging;
 
 namespace KubernetesWorkflow
 {
-    public class CrashWatcher
+    public class ContainerCrashWatcher
     {
         private readonly ILog log;
         private readonly KubernetesClientConfiguration config;
@@ -15,7 +15,7 @@ namespace KubernetesWorkflow
         private Task? worker;
         private Exception? workerException;
 
-        public CrashWatcher(ILog log, KubernetesClientConfiguration config, string containerName, string podName, string recipeName, string k8sNamespace)
+        public ContainerCrashWatcher(ILog log, KubernetesClientConfiguration config, string containerName, string podName, string recipeName, string k8sNamespace)
         {
             this.log = log;
             this.config = config;
@@ -45,7 +45,7 @@ namespace KubernetesWorkflow
             if (workerException != null) throw new Exception("Exception occurred in CrashWatcher worker thread.", workerException);
         }
 
-        public bool HasContainerCrashed()
+        public bool HasCrashed()
         {
             using var client = new Kubernetes(config);
             var result = HasContainerBeenRestarted(client);
@@ -70,13 +70,13 @@ namespace KubernetesWorkflow
             using var client = new Kubernetes(config);
             while (!token.IsCancellationRequested)
             {
-                token.WaitHandle.WaitOne(TimeSpan.FromSeconds(10));
-
                 if (HasContainerBeenRestarted(client))
                 {
                     DownloadCrashedContainerLogs(client);
                     return;
                 }
+
+                token.WaitHandle.WaitOne(TimeSpan.FromSeconds(10));
             }
         }
 
@@ -91,7 +91,7 @@ namespace KubernetesWorkflow
         private void DownloadCrashedContainerLogs(Kubernetes client)
         {
             using var stream = client.ReadNamespacedPodLog(podName, k8sNamespace, recipeName, previous: true);
-            var handler = new WriteToFileLogHandler(log, "Crash detected for " + containerName);
+            var handler = new WriteToFileLogHandler(log, "Crash detected for " + containerName, containerName);
             handler.Log(stream);
         }
     }

Framework/KubernetesWorkflow/K8sController.cs

@@ -122,6 +122,16 @@ namespace KubernetesWorkflow
             var all = client.Run(c => c.ListNamespace().Items);
             var namespaces = all.Select(n => n.Name()).Where(n => n.StartsWith(prefix));
 
+            if (wait)
+            {
+                // If we're going to wait, trigger the delete for all the namespaces immediately.
+                // Then wait for them to finish one by one.
+                foreach (var ns in namespaces)
+                {
+                    DeleteNamespace(ns, false);
+                }
+            }
+
             foreach (var ns in namespaces)
             {
                 DeleteNamespace(ns, wait);
@@ -735,7 +745,10 @@ namespace KubernetesWorkflow
                 throw new Exception($"Expected to find 1 pod by podLabel '{deployment.PodLabel}'. Found: {pods.Length}. " +
                     $"Total number of pods: {allPods.Items.Count}. Their labels: {string.Join(Environment.NewLine, allLabels)}");
             }
-            return pods[0];
+            var pod = pods[0];
+            if (pod.Status == null) throw new Exception("Pod status unknown");
+            if (string.IsNullOrEmpty(pod.Status.PodIP)) throw new Exception("Pod IP unknown");
+            return pod;
         }
 
         #endregion
@@ -906,7 +919,7 @@ namespace KubernetesWorkflow
                 var msg = $"Pod crash detected for deployment {deploymentName} (pod:{podName})";
                 log.Error(msg);
 
-                DownloadPodLog(container, new WriteToFileLogHandler(log, msg), tailLines: null, previous: true);
+                DownloadPodLog(container, new WriteToFileLogHandler(log, msg, deploymentName), tailLines: null, previous: true);
 
                 throw new Exception(msg);
             }
@@ -946,13 +959,13 @@ namespace KubernetesWorkflow
 
         #endregion
 
-        public CrashWatcher CreateCrashWatcher(RunningContainer container)
+        public ContainerCrashWatcher CreateCrashWatcher(RunningContainer container)
         {
             var containerName = container.Name;
             var podName = GetPodName(container);
             var recipeName = container.Recipe.Name;
 
-            return new CrashWatcher(log, cluster.GetK8sClientConfig(), containerName, podName, recipeName, K8sNamespace);
+            return new ContainerCrashWatcher(log, cluster.GetK8sClientConfig(), containerName, podName, recipeName, K8sNamespace);
         }
 
         private V1Pod[] FindPodsByLabel(string podLabel)

Framework/KubernetesWorkflow/K8sNameUtils.cs

@@ -24,8 +24,8 @@
                 .Replace("]", "-")
                 .Replace(",", "-");
 
-            result = result.Trim('-');
             if (result.Length > maxLength) result = result.Substring(0, maxLength);
+            result = result.Trim('-');
 
             return result;
         }

Framework/KubernetesWorkflow/K8sTimeSet.cs

@@ -0,0 +1,42 @@
+namespace Core
+{
+    public interface IK8sTimeSet
+    {
+        /// <summary>
+        /// After a failed K8s operation, wait this long before trying again.
+        /// </summary>
+        TimeSpan K8sOperationRetryDelay();
+
+        /// <summary>
+        /// Maximum total time to attempt to perform a successful k8s operation.
+        /// If k8s operations fail during this timespan, retries will be made.
+        /// </summary>
+        TimeSpan K8sOperationTimeout();
+    }
+
+    public class DefaultK8sTimeSet : IK8sTimeSet
+    {
+        public TimeSpan K8sOperationRetryDelay()
+        {
+            return TimeSpan.FromSeconds(10);
+        }
+
+        public TimeSpan K8sOperationTimeout()
+        {
+            return TimeSpan.FromMinutes(30);
+        }
+    }
+
+    public class LongK8sTimeSet : IK8sTimeSet
+    {
+        public TimeSpan K8sOperationRetryDelay()
+        {
+            return TimeSpan.FromSeconds(30);
+        }
+
+        public TimeSpan K8sOperationTimeout()
+        {
+            return TimeSpan.FromHours(1);
+        }
+    }
+}

Framework/KubernetesWorkflow/KubernetesWorkflow.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
 	  <RootNamespace>KubernetesWorkflow</RootNamespace>
 	  <ImplicitUsings>enable</ImplicitUsings>
 	  <Nullable>enable</Nullable>

Framework/KubernetesWorkflow/LogHandler.cs

@@ -25,11 +25,11 @@ namespace KubernetesWorkflow
 
     public class WriteToFileLogHandler : LogHandler, ILogHandler
     {
-        public WriteToFileLogHandler(ILog sourceLog, string description)
+        public WriteToFileLogHandler(ILog sourceLog, string description, string addFileName)
         {
-            LogFile = sourceLog.CreateSubfile();
+            LogFile = sourceLog.CreateSubfile(addFileName);
 
-            var msg = $"{description} -->> {LogFile.FullFilename}";
+            var msg = $"{description} -->> {LogFile.Filename}";
             sourceLog.Log(msg);
 
             LogFile.Write(msg);

Framework/KubernetesWorkflow/Recipe/ContainerAdditionals.cs

@@ -1,4 +1,5 @@
-using Newtonsoft.Json.Linq;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
 
 namespace KubernetesWorkflow.Recipe
 {
@@ -21,14 +22,13 @@ namespace KubernetesWorkflow.Recipe
             var typeName = GetTypeName(typeof(T));
             var userData = Additionals.SingleOrDefault(a => a.Type == typeName);
             if (userData == null) return default;
-            var jobject = (JObject)userData.UserData;
-            return jobject.ToObject<T>();
+            return JsonConvert.DeserializeObject<T>(userData.UserData);
         }
 
         private static Additional ConvertToAdditional(object userData)
         {
             var typeName = GetTypeName(userData.GetType());
-            return new Additional(typeName, userData);
+            return new Additional(typeName, JsonConvert.SerializeObject(userData));
         }
 
         private static string GetTypeName(Type type)
@@ -41,13 +41,13 @@ namespace KubernetesWorkflow.Recipe
 
     public class Additional
     {
-        public Additional(string type, object userData)
+        public Additional(string type, string userData)
         {
             Type = type;
             UserData = userData;
         }
 
         public string Type { get; }
-        public object UserData { get; }
+        public string UserData { get; }
     }
 }

Framework/KubernetesWorkflow/Recipe/ContainerRecipe.cs

@@ -2,8 +2,9 @@
 {
     public class ContainerRecipe
     {
-        public ContainerRecipe(int number, string? nameOverride, string image, ContainerResources resources, SchedulingAffinity schedulingAffinity, CommandOverride commandOverride, bool setCriticalPriority, Port[] exposedPorts, Port[] internalPorts, EnvVar[] envVars, PodLabels podLabels, PodAnnotations podAnnotations, VolumeMount[] volumes, ContainerAdditionals additionals)
+        public ContainerRecipe(DateTime recipeCreatedUtc, int number, string? nameOverride, string image, ContainerResources resources, SchedulingAffinity schedulingAffinity, CommandOverride commandOverride, bool setCriticalPriority, Port[] exposedPorts, Port[] internalPorts, EnvVar[] envVars, PodLabels podLabels, PodAnnotations podAnnotations, VolumeMount[] volumes, ContainerAdditionals additionals)
         {
+            RecipeCreatedUtc = recipeCreatedUtc;
             Number = number;
             NameOverride = nameOverride;
             Image = image;
@@ -31,6 +32,7 @@
             if (exposedPorts.Any(p => string.IsNullOrEmpty(p.Tag))) throw new Exception("Port tags are required for all exposed ports.");
         }
 
+        public DateTime RecipeCreatedUtc { get; }
         public string Name { get; }
         public int Number { get; }
         public string? NameOverride { get; }

Framework/KubernetesWorkflow/Recipe/ContainerRecipeFactory.cs

@@ -25,7 +25,7 @@ namespace KubernetesWorkflow.Recipe
 
             Initialize(config);
 
-            var recipe = new ContainerRecipe(containerNumber, config.NameOverride, Image, resources, schedulingAffinity, commandOverride, setCriticalPriority,
+            var recipe = new ContainerRecipe(DateTime.UtcNow, containerNumber, config.NameOverride, Image, resources, schedulingAffinity, commandOverride, setCriticalPriority,
                 exposedPorts.ToArray(),
                 internalPorts.ToArray(),
                 envVars.ToArray(),

Framework/KubernetesWorkflow/StartupWorkflow.cs

@@ -13,9 +13,10 @@ namespace KubernetesWorkflow
         FutureContainers Start(int numberOfContainers, ILocation location, ContainerRecipeFactory recipeFactory, StartupConfig startupConfig);
         PodInfo GetPodInfo(RunningContainer container);
         PodInfo GetPodInfo(RunningPod pod);
-        CrashWatcher CreateCrashWatcher(RunningContainer container);
+        ContainerCrashWatcher CreateCrashWatcher(RunningContainer container);
         void Stop(RunningPod pod, bool waitTillStopped);
         void DownloadContainerLog(RunningContainer container, ILogHandler logHandler, int? tailLines = null, bool? previous = null);
+        IDownloadedLog DownloadContainerLog(RunningContainer container, int? tailLines = null, bool? previous = null);
         string ExecuteCommand(RunningContainer container, string command, params string[] args);
         void DeleteNamespace(bool wait);
         void DeleteNamespacesStartingWith(string namespacePrefix, bool wait);
@@ -60,7 +61,8 @@ namespace KubernetesWorkflow
                 var startResult = controller.BringOnline(recipes, location);
                 var containers = CreateContainers(startResult, recipes, startupConfig);
 
-                var rc = new RunningPod(startupConfig, startResult, containers);
+                var info = GetPodInfo(startResult.Deployment);
+                var rc = new RunningPod(Guid.NewGuid().ToString(), info, startupConfig, startResult, containers);
                 cluster.Configuration.Hooks.OnContainersStarted(rc);
 
                 if (startResult.ExternalService != null)
@@ -82,9 +84,14 @@ namespace KubernetesWorkflow
             });
         }
 
+        public PodInfo GetPodInfo(RunningDeployment deployment)
+        {
+            return K8s(c => c.GetPodInfo(deployment));
+        }
+
         public PodInfo GetPodInfo(RunningContainer container)
         {
-            return K8s(c => c.GetPodInfo(container.RunningPod.StartResult.Deployment));
+            return GetPodInfo(container.RunningPod.StartResult.Deployment);
         }
 
         public PodInfo GetPodInfo(RunningPod pod)
@@ -92,18 +99,26 @@ namespace KubernetesWorkflow
             return K8s(c => c.GetPodInfo(pod.StartResult.Deployment));
         }
 
-        public CrashWatcher CreateCrashWatcher(RunningContainer container)
+        public ContainerCrashWatcher CreateCrashWatcher(RunningContainer container)
         {
             return K8s(c => c.CreateCrashWatcher(container));
         }
 
         public void Stop(RunningPod runningPod, bool waitTillStopped)
         {
+            if (runningPod.IsStopped) return;
+            foreach (var c in runningPod.Containers)
+            {
+                c.StopLog = DownloadContainerLog(c);
+            }
+            runningPod.IsStopped = true;
+
             K8s(controller =>
             {
                 controller.Stop(runningPod.StartResult, waitTillStopped);
-                cluster.Configuration.Hooks.OnContainersStopped(runningPod);
             });
+
+            cluster.Configuration.Hooks.OnContainersStopped(runningPod);
         }
 
         public void DownloadContainerLog(RunningContainer container, ILogHandler logHandler, int? tailLines = null, bool? previous = null)
@@ -114,6 +129,20 @@ namespace KubernetesWorkflow
             });
         }
 
+        public IDownloadedLog DownloadContainerLog(RunningContainer container, int? tailLines = null, bool? previous = null)
+        {
+            var msg = $"Downloading container log for '{container.Name}'";
+            log.Log(msg);
+            var logHandler = new WriteToFileLogHandler(log, msg, container.Name);
+
+            K8s(controller =>
+            {
+                controller.DownloadPodLog(container, logHandler, tailLines, previous);
+            });
+
+            return new DownloadedLog(logHandler.LogFile, container.Name);
+        }
+
         public string ExecuteCommand(RunningContainer container, string command, params string[] args)
         {
             return K8s(controller =>
@@ -147,7 +176,7 @@ namespace KubernetesWorkflow
                 var addresses = CreateContainerAddresses(startResult, r);
                 log.Debug($"{r}={name} -> container addresses: {string.Join(Environment.NewLine, addresses.Select(a => a.ToString()))}");
 
-                return new RunningContainer(name, r, addresses);
+                return new RunningContainer(Guid.NewGuid().ToString(), name, r, addresses);
 
             }).ToArray();
         }
@@ -186,6 +215,7 @@ namespace KubernetesWorkflow
             var port = startResult.GetExternalServicePorts(recipe, tag);
 
             return new Address(
+                logName: $"{recipe.Name}:{tag}",
                 startResult.Cluster.HostAddress,
                 port.Number);
         }
@@ -197,6 +227,7 @@ namespace KubernetesWorkflow
             var port = startResult.GetInternalServicePorts(recipe, tag);
 
             return new Address(
+                logName: $"{serviceName}:{tag}",
                 $"http://{serviceName}.{namespaceName}.svc.cluster.local",
                 port.Number);
         }

Framework/KubernetesWorkflow/Types/RunningContainer.cs

@@ -7,27 +7,29 @@ namespace KubernetesWorkflow.Types
 {
     public class RunningContainer
     {
-        public RunningContainer(string name, ContainerRecipe recipe, ContainerAddress[] addresses)
+        public RunningContainer(string id, string name, ContainerRecipe recipe, ContainerAddress[] addresses)
         {
+            Id = id;
             Name = name;
             Recipe = recipe;
             Addresses = addresses;
         }
 
+        public string Id { get; }
         public string Name { get; }
         public ContainerRecipe Recipe { get; }
         public ContainerAddress[] Addresses { get; }
+        public IDownloadedLog? StopLog { get; internal set; }
 
         [JsonIgnore]
         public RunningPod RunningPod { get; internal set; } = null!;
 
-        public Address GetAddress(ILog log, string portTag)
+        public Address GetAddress(string portTag)
         {
             var addresses = Addresses.Where(a => a.PortTag == portTag).ToArray();
             if (!addresses.Any()) throw new Exception("No addresses found for portTag: " + portTag);
 
             var select = SelectAddress(addresses);
-            log.Debug($"Container '{Name}' selected for tag '{portTag}' address: '{select}'");
             return select.Address;
         }
 
@@ -50,5 +52,21 @@ namespace KubernetesWorkflow.Types
             }
             throw new Exception("Running location not known.");
         }
+
+        public override string ToString()
+        {
+            return Name;
+        }
+
+        public override bool Equals(object? obj)
+        {
+            return obj is RunningContainer container &&
+                   Id == container.Id;
+        }
+
+        public override int GetHashCode()
+        {
+            return HashCode.Combine(Id);
+        }
     }
 }

Framework/KubernetesWorkflow/Types/RunningPod.cs

@@ -4,8 +4,10 @@ namespace KubernetesWorkflow.Types
 {
     public class RunningPod
     {
-        public RunningPod(StartupConfig startupConfig, StartResult startResult, RunningContainer[] containers)
+        public RunningPod(string id, PodInfo podInfo, StartupConfig startupConfig, StartResult startResult, RunningContainer[] containers)
         {
+            Id = id;
+            PodInfo = podInfo;
             StartupConfig = startupConfig;
             StartResult = startResult;
             Containers = containers;
@@ -13,6 +15,8 @@ namespace KubernetesWorkflow.Types
             foreach (var c in containers) c.RunningPod = this;
         }
 
+        public string Id { get; }
+        public PodInfo PodInfo { get; }
         public StartupConfig StartupConfig { get; }
         public StartResult StartResult { get; }
         public RunningContainer[] Containers { get; }
@@ -23,10 +27,30 @@ namespace KubernetesWorkflow.Types
             get { return $"'{string.Join("&", Containers.Select(c => c.Name).ToArray())}'"; }
         }
 
+        [JsonIgnore]
+        public bool IsStopped { get; internal set; }
+
         public string Describe()
         {
             return string.Join(",", Containers.Select(c => c.Name));
         }
+
+        public override bool Equals(object? obj)
+        {
+            return obj is RunningPod pod &&
+                   Id == pod.Id;
+        }
+
+        public override int GetHashCode()
+        {
+            return HashCode.Combine(Id);
+        }
+
+        public override string ToString()
+        {
+            if (IsStopped) return Name + " (*)";
+            return Name;
+        }
     }
 
     public static class RunningContainersExtensions

Framework/Logging/BaseLog.cs

@@ -8,7 +8,7 @@ namespace Logging
         void Debug(string message = "", int skipFrames = 0);
         void Error(string message);
         void AddStringReplace(string from, string to);
-        LogFile CreateSubfile(string ext = "log");
+        LogFile CreateSubfile(string addName, string ext = "log");
     }
 
     public abstract class BaseLog : ILog
@@ -34,7 +34,7 @@ namespace Logging
         {
             get
             {
-                if (logFile == null) logFile = new LogFile(GetFullName(), "log");
+                if (logFile == null) logFile = new LogFile(GetFullName() + ".log");
                 return logFile;
             }
         }
@@ -69,15 +69,19 @@ namespace Logging
 
         public virtual void Delete()
         {
-            File.Delete(LogFile.FullFilename);
+            File.Delete(LogFile.Filename);
         }
 
-        public LogFile CreateSubfile(string ext = "log")
+        public LogFile CreateSubfile(string addName, string ext = "log")
         {
-            return new LogFile($"{GetFullName()}_{GetSubfileNumber()}", ext);
+            addName = addName
+                .Replace("<", "")
+                .Replace(">", "");
+
+            return new LogFile($"{GetFullName()}_{GetSubfileNumber()}_{addName}.{ext}");
         }
 
-        private string ApplyReplacements(string str)
+        protected string ApplyReplacements(string str)
         {
             if (IsDebug) return str;
             foreach (var replacement in replacements)

Framework/Logging/ConsoleLog.cs

@@ -9,7 +9,7 @@
 
         public override void Log(string message)
         {
-            Console.WriteLine(message);
+            Console.WriteLine(ApplyReplacements(message));
         }
     }
 }

Framework/Logging/DownloadedLog.cs

@@ -0,0 +1,79 @@
+namespace Logging
+{
+    public interface IDownloadedLog
+    {
+        string SourceName { get; }
+
+        void IterateLines(Action<string> action);
+        void IterateLines(Action<string> action, params string[] thatContain);
+        string[] GetLinesContaining(string expectedString);
+        string[] FindLinesThatContain(params string[] tags);
+        string GetFilepath();
+        void DeleteFile();
+    }
+
+    public class DownloadedLog : IDownloadedLog
+    {
+        private readonly LogFile logFile;
+
+        public DownloadedLog(string filepath, string sourceName)
+        {
+            logFile = new LogFile(filepath);
+            SourceName = sourceName;
+        }
+
+        public DownloadedLog(LogFile logFile, string sourceName)
+        {
+            this.logFile = logFile;
+            SourceName = sourceName;
+        }
+
+        public string SourceName { get; }
+
+        public void IterateLines(Action<string> action)
+        {
+            using var file = File.OpenRead(logFile.Filename);
+            using var streamReader = new StreamReader(file);
+
+            var line = streamReader.ReadLine();
+            while (line != null)
+            {
+                action(line);
+                line = streamReader.ReadLine();
+            }
+        }
+
+        public void IterateLines(Action<string> action, params string[] thatContain)
+        {
+            IterateLines(line =>
+            {
+                if (thatContain.All(line.Contains))
+                {
+                    action(line);
+                }
+            });
+        }
+
+        public string[] GetLinesContaining(string expectedString)
+        {
+            return FindLinesThatContain([expectedString]);
+        }
+
+        public string[] FindLinesThatContain(params string[] tags)
+        {
+            var result = new List<string>();
+            IterateLines(result.Add, tags);
+            return result.ToArray();
+        }
+
+        public string GetFilepath()
+        {
+            return logFile.Filename;
+        }
+
+        public void DeleteFile()
+        {
+            File.Delete(logFile.Filename);
+        }
+    }
+}

Framework/Logging/LogFile.cs

@@ -1,21 +1,19 @@
-namespace Logging
+using Utils;
+
+namespace Logging
 {
     public class LogFile
     {
-        private readonly string extension;
         private readonly object fileLock = new object();
-        private string filename;
 
-        public LogFile(string filename, string extension)
+        public LogFile(string filename)
         {
-            this.filename = filename;
-            this.extension = extension;
-            FullFilename = filename + "." + extension;
+            Filename = filename;
 
             EnsurePathExists(filename);
         }
 
-        public string FullFilename { get; private set; }
+        public string Filename { get; private set; }
 
         public void Write(string message)
         {
@@ -28,7 +26,7 @@
             {
                 lock (fileLock)
                 { 
-                    File.AppendAllLines(FullFilename, new[] { message });
+                    File.AppendAllLines(Filename, new[] { message });
                 }
             }
             catch (Exception ex)
@@ -37,19 +35,24 @@
             }
         }
 
-        public void ConcatToFilename(string toAdd)
+        public void WriteRawMany(IEnumerable<string> lines)
         {
-            var oldFullName = FullFilename;
-
-            filename += toAdd;
-            FullFilename = filename + "." + extension;
-
-            File.Move(oldFullName, FullFilename);
+            try
+            {
+                lock (fileLock)
+                {
+                    File.AppendAllLines(Filename, lines);
+                }
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine("Writing to log has failed: " + ex);
+            }
         }
 
         private static string GetTimestamp()
         {
-            return $"[{DateTime.UtcNow.ToString("o")}]";
+            return $"[{Time.FormatTimestamp(DateTime.UtcNow)}]";
         }
 
         private void EnsurePathExists(string filename)

Framework/Logging/LogPrefixer.cs

@@ -18,9 +18,9 @@
         public string Prefix { get; set; } = string.Empty;
 
 
-        public LogFile CreateSubfile(string ext = "log")
+        public LogFile CreateSubfile(string addName, string ext = "log")
         {
-            return backingLog.CreateSubfile(ext);
+            return backingLog.CreateSubfile(addName, ext);
         }
 
         public void Debug(string message = "", int skipFrames = 0)

Framework/Logging/LogSplitter.cs

@@ -14,9 +14,9 @@
             OnAll(l => l.AddStringReplace(from, to));
         }
 
-        public LogFile CreateSubfile(string ext = "log")
+        public LogFile CreateSubfile(string addName, string ext = "log")
         {
-            return targetLogs.First().CreateSubfile(ext);
+            return targetLogs.First().CreateSubfile(addName, ext);
         }
 
         public void Debug(string message = "", int skipFrames = 0)

Framework/Logging/Logging.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
 	  <RootNamespace>Logging</RootNamespace>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>

Framework/NethereumWorkflow/NethereumInteraction.cs

@@ -1,25 +1,25 @@
-using Logging;
+using BlockchainUtils;
+using Logging;
 using Nethereum.ABI.FunctionEncoding.Attributes;
 using Nethereum.Contracts;
 using Nethereum.RPC.Eth.DTOs;
 using Nethereum.Web3;
-using NethereumWorkflow.BlockUtils;
 using Utils;
 
 namespace NethereumWorkflow
 {
     public class NethereumInteraction
     {
-        // BlockCache is a static instance: It stays alive for the duration of the application runtime.
-        private readonly static BlockCache blockCache = new BlockCache();
+        private readonly BlockCache blockCache;
 
         private readonly ILog log;
         private readonly Web3 web3;
 
-        internal NethereumInteraction(ILog log, Web3 web3)
+        internal NethereumInteraction(ILog log, Web3 web3, BlockCache blockCache)
         {
             this.log = log;
             this.web3 = web3;
+            this.blockCache = blockCache;
         }
 
         public string SendEth(string toAddress, decimal ethAmount)
@@ -50,6 +50,21 @@ namespace NethereumWorkflow
             return Time.Wait(handler.QueryAsync<TResult>(contractAddress, function));
         }
 
+        public TResult Call<TFunction, TResult>(string contractAddress, TFunction function, ulong blockNumber) where TFunction : FunctionMessage, new()
+        {
+            log.Debug(typeof(TFunction).ToString());
+            var handler = web3.Eth.GetContractQueryHandler<TFunction>();
+            return Time.Wait(handler.QueryAsync<TResult>(contractAddress, function, new BlockParameter(blockNumber)));
+        }
+
+        public void Call<TFunction>(string contractAddress, TFunction function, ulong blockNumber) where TFunction : FunctionMessage, new()
+        {
+            log.Debug(typeof(TFunction).ToString());
+            var handler = web3.Eth.GetContractQueryHandler<TFunction>();
+            var result = Time.Wait(handler.QueryRawAsync(contractAddress, function, new BlockParameter(blockNumber)));
+            var aaaa = 0;
+        }
+
         public string SendTransaction<TFunction>(string contractAddress, TFunction function) where TFunction : FunctionMessage, new()
         {
             log.Debug();

Framework/NethereumWorkflow/NethereumInteractionCreator.cs

@@ -1,4 +1,5 @@
-using Logging;
+using BlockchainUtils;
+using Logging;
 using Nethereum.Web3;
 
 namespace NethereumWorkflow
@@ -6,13 +7,15 @@ namespace NethereumWorkflow
     public class NethereumInteractionCreator
     {
         private readonly ILog log;
+        private readonly BlockCache blockCache;
         private readonly string ip;
         private readonly int port;
         private readonly string privateKey;
 
-        public NethereumInteractionCreator(ILog log, string ip, int port, string privateKey)
+        public NethereumInteractionCreator(ILog log, BlockCache blockCache, string ip, int port, string privateKey)
         {
             this.log = log;
+            this.blockCache = blockCache;
             this.ip = ip;
             this.port = port;
             this.privateKey = privateKey;
@@ -21,7 +24,7 @@ namespace NethereumWorkflow
         public NethereumInteraction CreateWorkflow()
         {
             log.Debug("Starting interaction to " + ip + ":" + port);
-            return new NethereumInteraction(log, CreateWeb3());
+            return new NethereumInteraction(log, CreateWeb3(), blockCache);
         }
 
         private Web3 CreateWeb3()

Framework/NethereumWorkflow/NethereumWorkflow.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
 	<RootNamespace>NethereumWorkflow</RootNamespace>
 	<ImplicitUsings>enable</ImplicitUsings>
 	<Nullable>enable</Nullable>
@@ -12,6 +12,7 @@
 	</ItemGroup>
 
   <ItemGroup>
+    <ProjectReference Include="..\BlockchainUtils\BlockchainUtils.csproj" />
     <ProjectReference Include="..\Logging\Logging.csproj" />
     <ProjectReference Include="..\Utils\Utils.csproj" />
   </ItemGroup>

Framework/NethereumWorkflow/Web3Wrapper.cs

@@ -1,16 +1,11 @@
-using Logging;
+using BlockchainUtils;
+using Logging;
 using Nethereum.RPC.Eth.DTOs;
 using Nethereum.Web3;
 using Utils;
 
 namespace NethereumWorkflow
 {
-    public interface IWeb3Blocks
-    {
-        ulong GetCurrentBlockNumber();
-        DateTime? GetTimestampForBlock(ulong blockNumber);
-    }
-
     public class Web3Wrapper : IWeb3Blocks
     {
         private readonly Web3 web3;

Framework/OverwatchTranscript/ActionQueue.cs

@@ -0,0 +1,61 @@
+namespace OverwatchTranscript
+{
+    public class ActionQueue
+    {
+        // Using ConcurrentQueue<> here would make this process slower.
+        private readonly object queueLock = new object();
+        private readonly AutoResetEvent signal = new AutoResetEvent(false);
+        private List<Action> queue = new List<Action>();
+        private Task queueWorker = null!;
+        private bool stopping = false;
+
+        public void Start()
+        {
+            queueWorker = Task.Run(QueueWorker);
+        }
+
+        public int Count { get; private set; }
+
+        public void StopAndJoin()
+        {
+            stopping = true;
+            queueWorker.Wait();
+            if (queue.Count > 0) throw new Exception("not all acions handled");
+            queueWorker.Dispose();
+        }
+
+        public void Add(Action action)
+        {
+            if (stopping) throw new Exception("queue stopping");
+
+            lock (queueLock)
+            {
+                queue.Add(action);
+                Count = queue.Count;
+            }
+            signal.Set();
+        }
+
+        private void QueueWorker()
+        {
+            while (true)
+            {
+                signal.WaitOne(10);
+
+                List<Action> work = null!;
+                lock (queueLock)
+                {
+                    work = queue;
+                    queue = new List<Action>();
+                    Count = 0;
+                }
+                if (stopping && !work.Any()) return;
+                
+                foreach (var action in work)
+                {
+                    action();
+                }
+            }
+        }
+    }
+}

Framework/OverwatchTranscript/BucketSet.cs

@@ -0,0 +1,110 @@
+using Logging;
+using System.Collections.Concurrent;
+
+namespace OverwatchTranscript
+{
+    public class BucketSet
+    {
+        private const int numberOfActiveBuckets = 10;
+        private readonly ILog log;
+        private readonly string workingDir;
+        private readonly object _bucketLock = new object();
+        private readonly List<EventBucketWriter> fullBuckets = new List<EventBucketWriter>();
+        private readonly List<EventBucketWriter> activeBuckets = new List<EventBucketWriter>();
+        private readonly ActionQueue queue = new ActionQueue();
+        private int activeBucketIndex = 0;
+        private bool closed = false;
+        private string internalErrors = string.Empty;
+        
+        public BucketSet(ILog log, string workingDir)
+        {
+            this.log = log;
+            this.workingDir = workingDir;
+
+            for (var i = 0; i < numberOfActiveBuckets;i++)
+            {
+                AddNewBucket();
+            }
+
+            queue.Start();
+        }
+
+        public void Add(DateTime utc, object payload)
+        {
+            if (closed) throw new Exception("Buckets already closed!");
+            queue.Add(() => AddInternal(utc, payload));
+            
+            if (queue.Count > 1000)
+            {
+                Thread.Sleep(1);
+            }
+        }
+
+        public IFinalizedBucket[] FinalizeBuckets()
+        {
+            closed = true;
+            queue.StopAndJoin();
+
+            if (IsEmpty()) throw new Exception("No entries have been added.");
+            if (!string.IsNullOrEmpty(internalErrors)) throw new Exception(internalErrors);
+
+            var buckets = fullBuckets.Concat(activeBuckets).ToArray();
+            log.Debug($"Finalizing {buckets.Length} buckets...");
+
+            var finalized = new ConcurrentBag<IFinalizedBucket>();
+            var tasks = Parallel.ForEach(buckets, b => finalized.Add(b.FinalizeBucket()));
+            if (!tasks.IsCompleted) throw new Exception("Failed to finalize buckets: " + tasks);
+
+            return finalized.ToArray();
+        }
+
+        private bool IsEmpty()
+        {
+            return fullBuckets.All(b => b.Count == 0) && activeBuckets.All(b => b.Count == 0);
+        }
+
+        private void AddInternal(DateTime utc, object payload)
+        {
+            try
+            {
+                lock (_bucketLock)
+                {
+                    var current = activeBuckets[activeBucketIndex];
+                    current.Add(utc, payload);
+                    activeBucketIndex = (activeBucketIndex + 1) % numberOfActiveBuckets;
+
+                    if (current.IsFull)
+                    {
+                        log.Debug("Bucket is full. New bucket...");
+                        fullBuckets.Add(current);
+                        activeBuckets.Remove(current);
+                        AddNewBucket();
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                internalErrors += ex.ToString();
+                log.Error(ex.ToString());
+            }
+        }
+
+        private static int bucketSizeIndex = 0;
+        private static int[] bucketSizes = new[]
+        {
+            10000,
+            15000,
+            20000,
+        };
+
+        private void AddNewBucket()
+        {
+            lock (_bucketLock)
+            {
+                var size = bucketSizes[bucketSizeIndex];
+                bucketSizeIndex = (bucketSizeIndex + 1) % bucketSizes.Length;
+                activeBuckets.Add(new EventBucketWriter(log, Path.Combine(workingDir, Guid.NewGuid().ToString()), size));
+            }
+        }
+    }
+}

Framework/OverwatchTranscript/EventBucketReader.cs

@@ -0,0 +1,151 @@
+using Logging;
+using Newtonsoft.Json;
+using System.Collections.Concurrent;
+
+namespace OverwatchTranscript
+{
+    public interface IFinalizedBucket
+    {
+        bool IsEmpty { get; }
+        void Update();
+        DateTime? SeeTopUtc();
+        BucketTop? TakeTop();
+    }
+
+    public class BucketTop
+    {
+        public BucketTop(DateTime utc, OverwatchEvent[] events)
+        {
+            Utc = utc;
+            Events = events;
+        }
+
+        public DateTime Utc { get; }
+        public OverwatchEvent[] Events { get; }
+    }
+
+    public class EventBucketReader : IFinalizedBucket
+    {
+        private readonly string bucketFile;
+        private readonly ConcurrentQueue<BucketTop> topQueue = new ConcurrentQueue<BucketTop>();
+        private readonly AutoResetEvent itemDequeued = new AutoResetEvent(false);
+        private readonly AutoResetEvent itemEnqueued = new AutoResetEvent(false);
+        private bool sourceIsEmpty;
+
+        public EventBucketReader(ILog log, string bucketFile)
+        {
+            this.bucketFile = bucketFile;
+            if (!File.Exists(bucketFile)) throw new Exception("Doesn't exist: " + bucketFile);
+
+            log.Debug("Read Bucket open: " + bucketFile);
+
+            Task.Run(ReadBucket);
+        }
+        
+        public bool IsEmpty { get; private set; }
+
+        public void Update()
+        {
+            if (IsEmpty) return;
+            while (topQueue.Count == 0)
+            {
+                UpdateIsEmpty();
+                if (IsEmpty) return;
+
+                itemDequeued.Set();
+                itemEnqueued.WaitOne(200);
+            }
+        }
+
+        public DateTime? SeeTopUtc()
+        {
+            if (IsEmpty) return null;
+            if (topQueue.TryPeek(out BucketTop? top))
+            {
+                return top.Utc;
+            }
+            return null;
+        }
+
+        public BucketTop? TakeTop()
+        {
+            if (IsEmpty) return null;
+            if (topQueue.TryDequeue(out BucketTop? top))
+            {
+                itemDequeued.Set();
+                return top;
+            }
+            return null;
+        }
+
+        private void ReadBucket()
+        {
+            using var file = File.OpenRead(bucketFile);
+            using var reader = new StreamReader(file);
+
+            while (true)
+            {
+                while (topQueue.Count < 5)
+                {
+                    var top = CreateNewTop(reader);
+                    if (top != null)
+                    {
+                        topQueue.Enqueue(top);
+                        itemEnqueued.Set();
+                    }
+                    else
+                    {
+                        sourceIsEmpty = true;
+                        UpdateIsEmpty();
+                        return;
+                    }
+                }
+
+                itemDequeued.Reset();
+                itemDequeued.WaitOne(5000);
+            }
+        }
+
+        private void UpdateIsEmpty()
+        {
+            var allEmpty = sourceIsEmpty && topQueue.IsEmpty;
+            if (!IsEmpty && allEmpty)
+            {
+                File.Delete(bucketFile);
+                IsEmpty = true;
+            }
+        }
+
+        private EventBucketEntry? nextEntry = null;
+        private BucketTop? CreateNewTop(StreamReader reader)
+        {
+            if (nextEntry == null)
+            {
+                nextEntry = ReadEntry(reader);
+                if (nextEntry == null) return null;
+            }
+
+            var topEntry = nextEntry;
+            var entries = new List<EventBucketEntry>
+            {
+                topEntry
+            };
+
+            nextEntry = ReadEntry(reader);
+            while (nextEntry != null && nextEntry.Utc == topEntry.Utc)
+            {
+                entries.Add(nextEntry);
+                nextEntry = ReadEntry(reader);
+            }
+
+            return new BucketTop(topEntry.Utc, entries.Select(e => e.Event).ToArray());
+        }
+
+        private EventBucketEntry? ReadEntry(StreamReader reader)
+        {
+            var line = reader.ReadLine();
+            if (string.IsNullOrEmpty(line)) return null;
+            return JsonConvert.DeserializeObject<EventBucketEntry>(line);
+        }
+    }
+}

Framework/OverwatchTranscript/EventBucketWriter.cs

@@ -0,0 +1,113 @@
+using Logging;
+using Newtonsoft.Json;
+
+namespace OverwatchTranscript
+{
+    public class EventBucketWriter
+    {
+        private const int MaxBuffer = 1000;
+
+        private readonly object _lock = new object();
+        private bool closed = false;
+        private readonly ILog log;
+        private readonly string bucketFile;
+        private readonly int maxCount;
+        private readonly List<EventBucketEntry> buffer = new List<EventBucketEntry>();
+
+        public EventBucketWriter(ILog log, string bucketFile, int maxCount)
+        {
+            this.log = log;
+            this.bucketFile = bucketFile;
+            this.maxCount = maxCount;
+            if (File.Exists(bucketFile)) throw new Exception("Already exists");
+
+            log.Debug("Write Bucket open: " + bucketFile);
+        }
+
+        public int Count { get; private set; }
+        public bool IsFull { get; private set; }
+
+        public void Add(DateTime utc, object payload)
+        {
+            lock (_lock)
+            {
+                if (closed) throw new Exception("Already closed");
+                AddToBuffer(utc, payload);
+                BufferToFile(emptyBuffer: false);
+            }
+        }
+
+        public IFinalizedBucket FinalizeBucket()
+        {
+            lock (_lock)
+            {
+                closed = true;
+                BufferToFile(emptyBuffer: true);
+                SortFileByTimestamps();
+            }
+            log.Debug($"Finalized bucket with {Count} entries");
+            return new EventBucketReader(log, bucketFile);
+        }
+
+        public override string ToString()
+        {
+            return $"EventBucket: " + Count;
+        }
+
+        private void AddToBuffer(DateTime utc, object payload)
+        {  
+            var typeName = payload.GetType().FullName;
+            if (string.IsNullOrEmpty(typeName)) throw new Exception("Empty typename for payload");
+            if (utc == default) throw new Exception("DateTimeUtc not set");
+
+            var entry = new EventBucketEntry
+            {
+                Utc = utc,
+                Event = new OverwatchEvent
+                {
+                    Type = typeName,
+                    Payload = Json.Serialize(payload)
+                }
+            };
+
+            Count++;
+            IsFull = Count > maxCount;
+
+            buffer.Add(entry);
+        }
+
+        private void BufferToFile(bool emptyBuffer)
+        {
+            if (emptyBuffer || buffer.Count > MaxBuffer)
+            {
+                using var file = File.Open(bucketFile, FileMode.Append);
+                using var writer = new StreamWriter(file);
+                foreach (var entry in buffer)
+                {
+                    writer.WriteLine(Json.Serialize(entry));
+                }
+                log.Debug($"Bucket wrote {buffer.Count} entries to file.");
+                buffer.Clear();
+            }
+        }
+
+        private void SortFileByTimestamps()
+        {
+            var lines = File.ReadAllLines(bucketFile);
+            var entries = lines.Select(Json.Deserialize<EventBucketEntry>)
+                .Cast<EventBucketEntry>()
+                .OrderBy(e => e.Utc)
+                .ToArray();
+
+            File.Delete(bucketFile);
+            File.WriteAllLines(bucketFile, entries.Select(e => Json.Serialize(e)));
+        }
+    }
+
+    [Serializable]
+    public class EventBucketEntry
+    {
+        public DateTime Utc { get; set; }
+        public OverwatchEvent Event { get; set; } = new();
+    }
+}

Framework/OverwatchTranscript/Json.cs

@@ -0,0 +1,27 @@
+using Newtonsoft.Json;
+using System.Globalization;
+
+namespace OverwatchTranscript
+{
+    public static class Json
+    {
+        private static JsonSerializerSettings settings = new JsonSerializerSettings
+        {
+            Formatting = Formatting.None,
+            NullValueHandling = NullValueHandling.Ignore,
+            Culture = CultureInfo.InvariantCulture,
+            DateFormatHandling = DateFormatHandling.IsoDateFormat,
+            FloatFormatHandling = FloatFormatHandling.Symbol
+        };
+
+        public static string Serialize(object obj, Formatting formatting = Formatting.None)
+        {
+            return JsonConvert.SerializeObject(obj, formatting, settings);
+        }
+
+        public static T Deserialize<T>(string json)
+        {
+            return JsonConvert.DeserializeObject<T>(json)!;
+        }
+    }
+}

Framework/OverwatchTranscript/Model.cs

@@ -0,0 +1,56 @@
+namespace OverwatchTranscript
+{
+    [Serializable]
+    public class OverwatchTranscript
+    {
+        public OverwatchHeader Header { get; set; } = new();
+        public OverwatchMomentReference[] MomentReferences { get; set; } = Array.Empty<OverwatchMomentReference>();
+    }
+
+    [Serializable]
+    public class OverwatchMomentReference
+    {
+        public string MomentsFile { get; set; } = string.Empty;
+        public int NumberOfMoments { get; set; }
+        public int NumberOfEvents { get; set; }
+        public DateTime EarliestUtc { get; set; }
+        public DateTime LatestUtc { get; set; }
+    }
+
+    [Serializable]
+    public class OverwatchHeader
+    {
+        public OverwatchCommonHeader Common { get; set; } = new();
+        public OverwatchHeaderEntry[] Entries { get; set; } = Array.Empty<OverwatchHeaderEntry>();
+    }
+
+    [Serializable]
+    public class OverwatchCommonHeader
+    {
+        public long NumberOfMoments { get; set; }
+        public long NumberOfEvents { get; set; }
+        public DateTime EarliestUtc { get; set; }
+        public DateTime LatestUtc { get; set; }
+    }
+
+    [Serializable]
+    public class OverwatchHeaderEntry
+    {
+        public string Key { get; set; } = string.Empty;
+        public string Value { get; set; } = string.Empty;
+    }
+
+    [Serializable]
+    public class OverwatchMoment
+    {
+        public DateTime Utc { get; set; }
+        public OverwatchEvent[] Events { get; set; } = Array.Empty<OverwatchEvent>();
+    }
+
+    [Serializable]
+    public class OverwatchEvent
+    {
+        public string Type { get; set; } = string.Empty;
+        public string Payload { get; set; } = string.Empty;
+    }
+}

Framework/OverwatchTranscript/MomentReader.cs

@@ -0,0 +1,104 @@
+using Newtonsoft.Json;
+
+namespace OverwatchTranscript
+{
+    public class MomentReader
+    {
+        private readonly OverwatchTranscript model;
+        private readonly string workingDir;
+        private int referenceIndex = 0;
+        private int momentsRead = 0;
+        private OpenReference currentRef;
+
+        public MomentReader(OverwatchTranscript model, string workingDir)
+        {
+            this.model = model;
+            this.workingDir = workingDir;
+
+            currentRef = CreateOpenReference();
+        }
+
+        public OverwatchMoment? Next()
+        {
+            if (referenceIndex >= model.MomentReferences.Length) return null;
+
+            var moment = currentRef.ReadNext();
+            if (moment == null)
+            {
+                Close();
+
+                // This reference file ran out.
+                // The number of moments read should match exactly the number of moments
+                // describe in the reference. If not, error:
+                var expected = model.MomentReferences[referenceIndex].NumberOfMoments;
+                if (momentsRead != expected)
+                {
+                    throw new Exception("Number of moments read from referenced file does not match number of moments value in model. " +
+                        $"Reads: { momentsRead} - model.MomentReferences[{referenceIndex}].NumberOfMoment: {expected}"); 
+                }
+
+                referenceIndex++;
+                if (referenceIndex < model.MomentReferences.Length)
+                {
+                    // Proceed to next reference file.
+                    currentRef = CreateOpenReference();
+                    momentsRead = 0;
+                    return Next();
+                }
+                else
+                {
+                    // That was the last one.
+                    return null;
+                }
+            }
+            else
+            {
+                momentsRead++;
+                return moment;
+            }
+        }
+
+        public void Close()
+        {
+            if (currentRef != null)
+            {
+                currentRef.Close();
+                currentRef = null!;
+            }
+        }
+
+        private OpenReference CreateOpenReference()
+        {
+            var filepath = Path.Combine(workingDir, model.MomentReferences[referenceIndex].MomentsFile);
+            return new OpenReference(filepath);
+        }
+
+        private class OpenReference
+        {
+            private readonly FileStream file;
+            private readonly StreamReader reader;
+
+            public OpenReference(string filePath)
+            {
+                file = File.OpenRead(filePath);
+                reader = new StreamReader(file);
+            }
+
+            public OverwatchMoment? ReadNext()
+            {
+                var line = reader.ReadLine();
+                if (string.IsNullOrEmpty(line)) return null;
+                return JsonConvert.DeserializeObject<OverwatchMoment>(line);
+            }
+
+            public void Close()
+            {
+                reader.Close();
+                file.Close();
+
+                reader.Dispose();
+                file.Dispose();
+            }
+        }
+    }
+}

Framework/OverwatchTranscript/MomentReferenceBuilder.cs

@@ -0,0 +1,153 @@
+using Logging;
+using Newtonsoft.Json;
+
+namespace OverwatchTranscript
+{
+    public class MomentReferenceBuilder
+    {
+        private const int MaxMomentsPerReference = 10000;
+        private readonly ILog log;
+        private readonly string workingDir;
+
+        public MomentReferenceBuilder(ILog log, string workingDir)
+        {
+            this.log = log;
+            this.workingDir = workingDir;
+        }
+
+        public OverwatchMomentReference[] Build(IFinalizedBucket[] finalizedBuckets)
+        {
+            var result = new List<OverwatchMomentReference>();
+            var currentBuilder = new Builder(log, workingDir);
+
+            var buckets = finalizedBuckets.ToList();
+            log.Debug($"Building references for {buckets.Count} buckets.");
+            while (buckets.Any())
+            {
+                foreach (var b in buckets) b.Update();
+
+                buckets.RemoveAll(b => b.IsEmpty);
+                if (!buckets.Any()) break;
+
+                var earliestUtc = GetEarliestUtc(buckets);
+                if (earliestUtc == null) continue;
+                
+                var tops = CollectAllTopsForUtc(earliestUtc.Value, buckets);
+                var moment = ConvertTopsToMoment(tops);
+                currentBuilder.Add(moment);
+                if (currentBuilder.NumberOfMoments == MaxMomentsPerReference)
+                {
+                    result.Add(currentBuilder.Build());
+                    currentBuilder = new Builder(log, workingDir);
+                }
+            }
+
+            if (currentBuilder.NumberOfMoments > 0)
+            {
+                result.Add(currentBuilder.Build());
+            }
+
+            return result.ToArray();
+        }
+
+        private OverwatchMoment ConvertTopsToMoment(List<BucketTop> tops)
+        {
+            var discintUtc = tops.Select(e => e.Utc).Distinct().ToArray();
+            if (discintUtc.Length != 1) throw new Exception("UTC mixing in moment construction.");
+
+            return new OverwatchMoment
+            {
+                Utc = tops[0].Utc,
+                Events = tops.SelectMany(e => e.Events).ToArray()
+            };
+        }
+
+        private List<BucketTop> CollectAllTopsForUtc(DateTime earliestUtc, List<IFinalizedBucket> buckets)
+        {
+            var result = new List<BucketTop>();
+
+            foreach (var bucket in buckets)
+            {
+                if (bucket.IsEmpty) continue;
+
+                var utc = bucket.SeeTopUtc();
+                if (utc == null) continue;
+
+                if (utc.Value == earliestUtc)
+                {
+                    var top = bucket.TakeTop();
+                    if (top == null) throw new Exception("top was null after top utc was not");
+                    result.Add(top);
+                }
+            }
+
+            return result;
+        }
+
+        private DateTime? GetEarliestUtc(List<IFinalizedBucket> buckets)
+        {
+            var earliest = DateTime.MaxValue;
+            foreach (var bucket in buckets)
+            {
+                var utc = bucket.SeeTopUtc();
+                if (utc == null) return null;
+
+                if (utc.Value < earliest) earliest = utc.Value;
+            }
+            return earliest;
+        }
+
+        public class Builder
+        {
+            private readonly ILog log;
+            private readonly string workingDir;
+            private OverwatchMomentReference reference;
+            private readonly ActionQueue queue = new ActionQueue();
+
+            public Builder(ILog log, string workingDir)
+            {
+                reference = new OverwatchMomentReference
+                {
+                    MomentsFile = Guid.NewGuid().ToString(),
+                    EarliestUtc = DateTime.MaxValue,
+                    LatestUtc = DateTime.MinValue,
+                    NumberOfEvents = 0,
+                    NumberOfMoments = 0,
+                };
+                this.log = log;
+                this.workingDir = workingDir;
+                queue.Start();
+            }
+
+            public int NumberOfMoments => reference.NumberOfMoments;
+
+            public void Add(OverwatchMoment moment)
+            {
+                if (moment.Utc < reference.EarliestUtc) reference.EarliestUtc = moment.Utc;
+                if (moment.Utc > reference.LatestUtc) reference.LatestUtc = moment.Utc;
+                reference.NumberOfMoments++;
+                reference.NumberOfEvents += moment.Events.Length;
+
+                var filePath = Path.Combine(workingDir, reference.MomentsFile);
+
+                queue.Add(() =>
+                {
+                    File.AppendAllLines(filePath, new[]
+                    {
+                        Json.Serialize(moment)
+                    });
+                });
+            }
+
+            public OverwatchMomentReference Build()
+            {
+                queue.StopAndJoin();
+
+                log.Debug($"Created reference with {reference.NumberOfMoments} moments and {reference.NumberOfEvents} events...");
+                var result = reference;
+                reference = null!;
+                return result;
+            }
+        }
+    }
+}

Framework/OverwatchTranscript/OverwatchTranscript.csproj

@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Logging\Logging.csproj" />
+  </ItemGroup>
+
+</Project>

Framework/OverwatchTranscript/Transcript.cs

@@ -0,0 +1,23 @@
+using Logging;
+
+namespace OverwatchTranscript
+{
+    public static class Transcript
+    {
+        public static ITranscriptWriter NewWriter(ILog log)
+        {
+            log = new LogPrefixer(log, "(TranscriptWriter) ");
+            return new TranscriptWriter(log, NewWorkDir());
+        }
+
+        public static ITranscriptReader NewReader(string transcriptFile)
+        {
+            return new TranscriptReader(NewWorkDir(), transcriptFile);
+        }
+
+        private static string NewWorkDir()
+        {
+            return Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
+        }
+    }
+}

Framework/OverwatchTranscript/TranscriptConstants.cs

@@ -0,0 +1,8 @@
+namespace OverwatchTranscript
+{
+    public static class TranscriptConstants
+    {
+        public const string TranscriptFilename = "transcript.json";
+        public const string ArtifactFolderName = "artifacts";
+    }
+}

Framework/OverwatchTranscript/TranscriptReader.cs

@@ -0,0 +1,264 @@
+using Newtonsoft.Json;
+using System.IO;
+using System;
+using System.IO.Compression;
+using System.Linq;
+using System.Collections.Generic;
+using System.Collections.Concurrent;
+
+namespace OverwatchTranscript
+{
+    public interface ITranscriptReader
+    {
+        OverwatchCommonHeader Header { get; }
+        T GetHeader<T>(string key);
+        void AddMomentHandler(Action<ActivateMoment> handler);
+        void AddEventHandler<T>(Action<ActivateEvent<T>> handler);
+        bool Next();
+        void Close();
+    }
+
+    public class TranscriptReader : ITranscriptReader
+    {
+        private readonly object handlersLock = new object();
+        private readonly string transcriptFile;
+        private readonly string artifactsFolder;
+        private readonly List<Action<ActivateMoment>> momentHandlers = new List<Action<ActivateMoment>>();
+        private readonly Dictionary<string, List<Action<ActivateMoment, string>>> eventHandlers = new Dictionary<string, List<Action<ActivateMoment, string>>>();
+        private readonly string workingDir;
+        private readonly OverwatchTranscript model;
+        private bool closed;
+        private long momentCounter;
+        private readonly ConcurrentQueue<OverwatchMoment> queue = new ConcurrentQueue<OverwatchMoment>();
+        private readonly Task queueFiller;
+
+        public TranscriptReader(string workingDir, string inputFilename)
+        {
+            closed = false;
+            this.workingDir = workingDir;
+            transcriptFile = Path.Combine(workingDir, TranscriptConstants.TranscriptFilename);
+            artifactsFolder = Path.Combine(workingDir, TranscriptConstants.ArtifactFolderName);
+
+            if (!Directory.Exists(workingDir)) Directory.CreateDirectory(workingDir);
+            if (File.Exists(transcriptFile) || Directory.Exists(artifactsFolder)) throw new Exception("workingdir not clean");
+
+            model = LoadModel(inputFilename);
+
+            queueFiller = Task.Run(() => FillQueue(model, workingDir));
+        }
+
+        public OverwatchCommonHeader Header
+        {
+            get
+            {
+                CheckClosed();
+                return model.Header.Common;
+            }
+        }
+
+        public T GetHeader<T>(string key)
+        {
+            CheckClosed();
+            var value = model.Header.Entries.First(e => e.Key == key).Value;
+            return JsonConvert.DeserializeObject<T>(value)!;
+        }
+
+        public void AddMomentHandler(Action<ActivateMoment> handler)
+        {
+            CheckClosed();
+            lock (handlersLock)
+            {
+                momentHandlers.Add(handler);
+            }
+        }
+
+        public void AddEventHandler<T>(Action<ActivateEvent<T>> handler)
+        {
+            CheckClosed();
+
+            var typeName = typeof(T).FullName;
+            if (string.IsNullOrEmpty(typeName)) throw new Exception("Empty typename for payload");
+
+            lock (handlersLock)
+            {
+                if (eventHandlers.ContainsKey(typeName))
+                {
+                    eventHandlers[typeName].Add(CreateEventAction(handler));
+                }
+                else
+                {
+                    eventHandlers.Add(typeName, new List<Action<ActivateMoment, string>>
+                    {
+                        CreateEventAction(handler)
+                    });
+                }
+            }
+        }
+
+        private readonly object nextLock = new object();
+        private OverwatchMoment? moment = null;
+        private OverwatchMoment? next = null;
+
+        public bool Next()
+        {
+            CheckClosed();
+
+            OverwatchMoment? m = null;
+            TimeSpan? duration = null;
+            lock (nextLock)
+            {
+                if (next == null)
+                {
+                    if (!queue.TryDequeue(out moment)) return false;
+                    queue.TryDequeue(out next);
+                }
+                else
+                {
+                    moment = next;
+                    next = null;
+                    queue.TryDequeue(out next);
+                }
+
+                m = moment;
+                duration = GetMomentDuration();
+            }
+
+            ActivateMoment(moment, duration);
+
+            return true;
+        }
+
+        public void Close()
+        {
+            CheckClosed();
+            closed = true;
+
+            queueFiller.Wait();
+
+            Directory.Delete(workingDir, true);
+        }
+
+        private Action<ActivateMoment, string> CreateEventAction<T>(Action<ActivateEvent<T>> handler)
+        {
+            return (m, s) =>
+            {
+                handler(new ActivateEvent<T>(m, JsonConvert.DeserializeObject<T>(s)!));
+            };
+        }
+
+        private void FillQueue(OverwatchTranscript model, string workingDir)
+        {
+            var reader = new MomentReader(model, workingDir);
+
+            while (true)
+            {
+                if (closed)
+                {
+                    reader.Close();
+                    return;
+                }
+
+                while (queue.Count < 10)
+                {
+                    var moment = reader.Next();
+                    if (moment == null)
+                    {
+                        reader.Close();
+                        return;
+                    }
+                    queue.Enqueue(moment);
+                }
+
+                Thread.Sleep(1);
+            }
+        }
+
+        private TimeSpan? GetMomentDuration()
+        {
+            if (moment == null) return null;
+            if (next == null) return null;
+
+            return next.Utc - moment.Utc;
+        }
+
+        private void ActivateMoment(OverwatchMoment moment, TimeSpan? duration)
+        {
+            var m = new ActivateMoment(moment.Utc, duration, momentCounter);
+
+            lock (handlersLock)
+            {
+                ActivateMomentHandlers(m);
+
+                foreach (var @event in moment.Events)
+                {
+                    ActivateEventHandlers(m, @event);
+                }
+            }
+
+            momentCounter++;
+        }
+
+        private void ActivateMomentHandlers(ActivateMoment m)
+        {
+            foreach (var handler in momentHandlers)
+            {
+                handler(m);
+            }
+        }
+
+        private void ActivateEventHandlers(ActivateMoment m, OverwatchEvent @event)
+        {
+            if (!eventHandlers.ContainsKey(@event.Type)) return;
+            var handlers = eventHandlers[@event.Type];
+
+            foreach (var handler in handlers)
+            {
+                handler(m, @event.Payload);
+            }
+        }
+
+        private OverwatchTranscript LoadModel(string inputFilename)
+        {
+            ZipFile.ExtractToDirectory(inputFilename, workingDir);
+
+            if (!File.Exists(transcriptFile))
+            {
+                closed = true;
+                throw new Exception("Is not a transcript file. Unzipped to: " + workingDir);
+            }
+
+            return JsonConvert.DeserializeObject<OverwatchTranscript>(File.ReadAllText(transcriptFile))!;
+        }
+
+        private void CheckClosed()
+        {
+            if (closed) throw new Exception("Transcript has already been closed.");
+        }
+    }
+
+    public class ActivateMoment
+    {
+        public ActivateMoment(DateTime utc, TimeSpan? duration, long index)
+        {
+            Utc = utc;
+            Duration = duration;
+            Index = index;
+        }
+
+        public DateTime Utc { get; }
+        public TimeSpan? Duration { get; }
+        public long Index { get; }
+    }
+
+    public class ActivateEvent<T>
+    {
+        public ActivateEvent(ActivateMoment moment, T payload)
+        {
+            Moment = moment;
+            Payload = payload;
+        }
+
+        public ActivateMoment Moment { get; }
+        public T Payload { get; }
+    }
+}

Framework/OverwatchTranscript/TranscriptWriter.cs

@@ -0,0 +1,130 @@
+using Logging;
+using Newtonsoft.Json;
+using System.IO.Compression;
+
+namespace OverwatchTranscript
+{
+    public interface ITranscriptWriter
+    {
+        void AddHeader(string key, object value);
+        void Add(DateTime utc, object payload);
+        void IncludeArtifact(string filePath);
+        void Write(string outputFilename);
+    }
+
+    public class TranscriptWriter : ITranscriptWriter
+    {
+        private readonly object _lock = new object();
+        private readonly MomentReferenceBuilder builder;
+        private readonly string transcriptFile;
+        private readonly string artifactsFolder;
+        private readonly Dictionary<string, string> header = new Dictionary<string, string>();
+        private readonly BucketSet bucketSet;
+        private readonly ILog log;
+        private readonly string workingDir;
+        private bool closed;
+
+        public TranscriptWriter(ILog log, string workingDir)
+        {
+            closed = false;
+            this.log = log;
+            this.workingDir = workingDir;
+            bucketSet = new BucketSet(log, workingDir);
+            builder = new MomentReferenceBuilder(log, workingDir);
+            transcriptFile = Path.Combine(workingDir, TranscriptConstants.TranscriptFilename);
+            artifactsFolder = Path.Combine(workingDir, TranscriptConstants.ArtifactFolderName);
+
+            if (!Directory.Exists(workingDir)) Directory.CreateDirectory(workingDir);
+            if (File.Exists(transcriptFile) || Directory.Exists(artifactsFolder)) throw new Exception("workingdir not clean");
+        }
+
+        public void Add(DateTime utc, object payload)
+        {
+            CheckClosed();
+            bucketSet.Add(utc, payload);
+        }
+
+        public void AddHeader(string key, object value)
+        {
+            CheckClosed();
+            lock (_lock)
+            {
+                header.Add(key, Json.Serialize(value));
+            }
+        }
+
+        public void IncludeArtifact(string filePath)
+        {
+            CheckClosed();
+            if (!File.Exists(filePath)) throw new Exception("File not found: " + filePath);
+            if (!Directory.Exists(artifactsFolder)) Directory.CreateDirectory(artifactsFolder);
+            var name = Path.GetFileName(filePath);
+            File.Copy(filePath, Path.Combine(artifactsFolder, name), overwrite: false);
+        }
+
+        public void Write(string outputFilename)
+        {
+            CheckClosed();
+            closed = true;
+
+            var momentReferences = builder.Build(bucketSet.FinalizeBuckets());
+            var model = CreateModel(momentReferences);
+
+            File.WriteAllText(transcriptFile, Json.Serialize(model, Formatting.Indented));
+
+            ZipFile.CreateFromDirectory(workingDir, outputFilename);
+            log.Debug($"Transcript written to {outputFilename}");
+            log.Debug($"Common header: {Json.Serialize(model.Header.Common, Formatting.Indented)}");
+
+            Directory.Delete(workingDir, true);
+            log.Debug($"Workdir {workingDir} deleted");
+        }
+
+        private OverwatchTranscript CreateModel(OverwatchMomentReference[] momentReferences)
+        {
+            lock (_lock)
+            {
+                var model = new OverwatchTranscript
+                {
+                    Header = new OverwatchHeader
+                    {
+                        Common = CreateCommonHeader(momentReferences),
+                        Entries = header.Select(h =>
+                        {
+                            return new OverwatchHeaderEntry
+                            {
+                                Key = h.Key,
+                                Value = h.Value
+                            };
+                        }).ToArray()
+                    },
+                    MomentReferences = momentReferences
+                };
+
+                header.Clear();
+                return model;
+            }
+        }
+
+        private OverwatchCommonHeader CreateCommonHeader(OverwatchMomentReference[] momentReferences)
+        {
+            var moments = momentReferences.Sum(m => m.NumberOfMoments);
+            var events = momentReferences.Sum(m => m.NumberOfEvents);
+            var earliest = momentReferences.Min(m => m.EarliestUtc);
+            var latest = momentReferences.Max(m => m.LatestUtc);
+
+            return new OverwatchCommonHeader
+            {
+                NumberOfMoments = moments,
+                NumberOfEvents = events,
+                EarliestUtc = earliest,
+                LatestUtc = latest
+            };
+        }
+
+        private void CheckClosed()
+        {
+            if (closed) throw new Exception("Transcript has already been written. Cannot modify or write again.");
+        }
+    }
+}

Framework/Utils/Address.cs

@@ -2,12 +2,14 @@
 {
     public class Address
     {
-        public Address(string host, int port)
+        public Address(string logName, string host, int port)
         {
+            LogName = logName;
             Host = host;
             Port = port;
         }
 
+        public string LogName { get; }
         public string Host { get; }
         public int Port { get; }
 
@@ -20,5 +22,21 @@
         {
             return !string.IsNullOrEmpty(Host) && Port > 0;
         }
+
+        public static Address Empty()
+        {
+            return new Address(string.Empty, string.Empty, 0);
+        }
     }
+
+    public interface IHasMetricsScrapeTarget
+    {
+        Address GetMetricsScrapeTarget();
+    }
+    
+    public interface IHasManyMetricScrapeTargets
+    {
+        Address[] GetMetricsScrapeTargets();
+    }
+
 }

Framework/Utils/Base58.cs

@@ -0,0 +1,64 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.Contracts;
+using System.Linq;
+using System.Numerics;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Utils
+{
+    public static class Base58
+    {
+        private const string Digits = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
+
+        public static string Encode(byte[] data)
+        {
+            // Decode byte[] to BigInteger
+            BigInteger intData = 0;
+            for (int i = 0; i < data.Length; i++)
+            {
+                intData = intData * 256 + data[i];
+            }
+
+            // Encode BigInteger to Base58 string
+            string result = "";
+            while (intData > 0)
+            {
+                int remainder = (int)(intData % 58);
+                intData /= 58;
+                result = Digits[remainder] + result;
+            }
+
+            // Append `1` for each leading 0 byte
+            for (int i = 0; i < data.Length && data[i] == 0; i++)
+            {
+                result = '1' + result;
+            }
+            return result;
+        }
+
+        public static byte[] Decode(string s)
+        {
+            BigInteger intData = 0;
+            for (int i = 0; i < s.Length; i++)
+            {
+                int digit = Digits.IndexOf(s[i]); //Slow
+                if (digit < 0)
+                    throw new FormatException(string.Format("Invalid Base58 character `{0}` at position {1}", s[i], i));
+                intData = intData * 58 + digit;
+            }
+
+            // Encode BigInteger to byte[]
+            // Leading zero bytes get encoded as leading `1` characters
+            int leadingZeroCount = s.TakeWhile(c => c == '1').Count();
+            var leadingZeros = Enumerable.Repeat((byte)0, leadingZeroCount);
+            var bytesWithoutLeadingZeros =
+                intData.ToByteArray()
+                .Reverse()// to big endian
+                .SkipWhile(b => b == 0);//strip sign byte
+            var result = leadingZeros.Concat(bytesWithoutLeadingZeros).ToArray();
+            return result;
+        }
+    }
+}

Framework/Utils/BlockInterval.cs

@@ -15,12 +15,13 @@
                 To = from;
             }
             TimeRange = timeRange;
+            NumberOfBlocks = (To - From) + 1;
         }
 
         public ulong From { get; }
         public ulong To { get; }
         public TimeRange TimeRange { get; }
-        public ulong NumberOfBlocks => To - From;
+        public ulong NumberOfBlocks { get; }
 
         public override string ToString()
         {

Framework/Utils/ByteSize.cs

@@ -13,7 +13,6 @@
 
         public long SizeInBytes { get; }
 
-
         public long ToMB()
         {
             return SizeInBytes / (1024 * 1024);

Framework/Utils/CrashWatcher.cs

@@ -0,0 +1,9 @@
+namespace Utils
+{
+    //public interface ICrashWatcher
+    //{
+    //    void Start();
+    //    void Stop();
+    //    bool HasCrashed();
+    //}
+}

Framework/Utils/EthAccount.cs

@@ -0,0 +1,20 @@
+namespace Utils
+{
+    [Serializable]
+    public class EthAccount
+    {
+        public EthAccount(EthAddress ethAddress, string privateKey)
+        {
+            EthAddress = ethAddress;
+            PrivateKey = privateKey;
+        }
+
+        public EthAddress EthAddress { get; }
+        public string PrivateKey { get; }
+
+        public override string ToString()
+        {
+            return EthAddress.ToString();
+        }
+    }
+}

Framework/Utils/EthAddress.cs

@@ -1,4 +1,4 @@
-namespace GethPlugin
+namespace Utils
 {
     public interface IHasEthAddress
     {

Framework/Utils/EthTokenExtensions.cs

@@ -1,4 +1,4 @@
-namespace GethPlugin
+namespace Utils
 {
     public class Ether : IComparable<Ether>
     {
@@ -28,7 +28,13 @@
 
         public override string ToString()
         {
-            return $"{Eth} Eth";
+            var weiOnly = Wei % TokensIntExtensions.WeiPerEth;
+
+            var tokens = new List<string>();
+            if (Eth > 0) tokens.Add($"{Eth} Eth");
+            if (weiOnly > 0) tokens.Add($"{weiOnly} Wei");
+
+            return string.Join(" + ", tokens);
         }
     }
 

Framework/Utils/PluginPathUtils.cs

@@ -0,0 +1,41 @@
+namespace Utils
+{
+    public static class PluginPathUtils
+    {
+        private const string ProjectPluginsFolderName = "ProjectPlugins";
+        private static string projectPluginsDir = string.Empty;
+
+        public static string ProjectPluginsDir
+        {
+            get
+            {
+                if (string.IsNullOrEmpty(projectPluginsDir)) projectPluginsDir = FindProjectPluginsDir();
+                return projectPluginsDir;
+            }
+        }
+
+        private static string FindProjectPluginsDir()
+        {
+            var current = Directory.GetCurrentDirectory();
+            while (true)
+            {
+                var localFolders = Directory.GetDirectories(current);
+                var projectPluginsFolders = localFolders.Where(l => l.EndsWith(ProjectPluginsFolderName)).ToArray();
+                if (projectPluginsFolders.Length == 1)
+                {
+                    return projectPluginsFolders.Single();
+                }
+
+                var parent = Directory.GetParent(current);
+                if (parent == null)
+                {
+                    var msg = $"Unable to locate '{ProjectPluginsFolderName}' folder. Travelled up from: '{Directory.GetCurrentDirectory()}'";
+                    Console.WriteLine(msg);
+                    throw new Exception(msg);
+                }
+
+                current = parent.FullName;
+            }
+        }
+    }
+}

Framework/Utils/RandomUtils.cs

@@ -3,13 +3,41 @@
     public static class RandomUtils
     {
         private static readonly Random random = new Random();
+        private static readonly object @lock = new object();
+
+        public static T GetOneRandom<T>(this T[] items)
+        {
+            lock (@lock)
+            {
+                var i = random.Next(0, items.Length);
+                var result = items[i];
+                return result;
+            }
+        }
 
         public static T PickOneRandom<T>(this List<T> remainingItems)
         {
-            var i = random.Next(0, remainingItems.Count);
-            var result = remainingItems[i];
-            remainingItems.RemoveAt(i);
-            return result;
+            lock (@lock)
+            {
+                var i = random.Next(0, remainingItems.Count);
+                var result = remainingItems[i];
+                remainingItems.RemoveAt(i);
+                return result;
+            }
+        }
+
+        public static T[] Shuffled<T>(T[] items)
+        {
+            lock (@lock)
+            {
+                var result = new List<T>();
+                var source = items.ToList();
+                while (source.Any())
+                {
+                    result.Add(RandomUtils.PickOneRandom(source));
+                }
+                return result.ToArray();
+            }
         }
     }
 }

Framework/Utils/Retry.cs

@@ -71,6 +71,10 @@
                         task();
                         return;
                     }
+                    catch (OperationCanceledException)
+                    {
+                        return;
+                    }
                     catch (Exception ex)
                     {
                         var failure = CaptureFailure(ex);
@@ -94,7 +98,7 @@
 
             private void Fail()
             {
-                throw new TimeoutException($"Retry '{description}' timed out after {tryNumber} tries over {Time.FormatDuration(Duration())}: {GetFailureReport}",
+                throw new TimeoutException($"Retry '{description}' timed out after {tryNumber} tries over {Time.FormatDuration(Duration())}: {GetFailureReport()}",
                         new AggregateException(failures.Select(f => f.Exception)));
             }
 

Framework/Utils/RollingAverage.cs

@@ -0,0 +1,28 @@
+namespace Utils
+{
+    public static class RollingAverage
+    {
+        /// <param name="currentAverage">Value of average before new value is added.</param>
+        /// <param name="newNumberOfValues">Number of values in average after new value is added.</param>
+        /// <param name="newValue">New value to be added.</param>
+        /// <returns>New average value.</returns>
+        /// <exception cref="Exception">newNumberOfValues must be 1 or greater.</exception>
+        public static float GetNewAverage(float currentAverage, int newNumberOfValues, float newValue)
+        {
+            if (newNumberOfValues < 1) throw new Exception("Should be at least 1 value.");
+
+            float n = newNumberOfValues;
+            var originalValue = currentAverage;
+            var originalValueWeight = ((n - 1.0f) / n);
+            var newValueWeight = (1.0f / n);
+            return GetWeightedAverage(originalValue, originalValueWeight, newValue, newValueWeight);
+        }
+
+        public static float GetWeightedAverage(float value1, float weight1, float value2, float weight2)
+        {
+            float totalWeight = weight1 + weight2;
+            if (totalWeight == 0.0f) return 0.0f;
+            return ((value1 * weight1) + (value2 * weight2)) / totalWeight;
+        }
+    }
+}

Framework/Utils/Str.cs

@@ -0,0 +1,13 @@
+namespace Utils
+{
+    public static class Str
+    {
+        public static string Between(string input, string open, string close)
+        {
+            var openIndex = input.IndexOf(open) + open.Length;
+            var closeIndex = input.LastIndexOf(close);
+
+            return input.Substring(openIndex, closeIndex - openIndex);
+        }
+    }
+}

Framework/Utils/TestTokenExtensions.cs

@@ -1,6 +1,6 @@
 using System.Numerics;
 
-namespace CodexContractsPlugin
+namespace Utils
 {
     public class TestToken : IComparable<TestToken>
     {
@@ -46,6 +46,16 @@ namespace CodexContractsPlugin
             return new TestToken(a.TstWei + b.TstWei);
         }
 
+        public static TestToken operator -(TestToken a, TestToken b)
+        {
+            return new TestToken(a.TstWei - b.TstWei);
+        }
+
+        public static TestToken operator *(TestToken a, int b)
+        {
+            return new TestToken(a.TstWei * b);
+        }
+
         public static bool operator <(TestToken a, TestToken b)
         {
             return a.TstWei < b.TstWei;
@@ -71,7 +81,7 @@ namespace CodexContractsPlugin
     {
         public static TestToken TstWei(this int i)
         {
-            return TstWei(Convert.ToDecimal(i));
+            return new TestToken(new BigInteger(i));
         }
 
         public static TestToken TstWei(this decimal i)
@@ -84,6 +94,11 @@ namespace CodexContractsPlugin
             return new TestToken(i);
         }
 
+        public static TestToken TstWei(this string s)
+        {
+            return new TestToken(BigInteger.Parse(s));
+        }
+
         public static TestToken Tst(this int i)
         {
             return Tst(Convert.ToDecimal(i));
@@ -98,5 +113,10 @@ namespace CodexContractsPlugin
         {
             return new TestToken(i * TestToken.WeiFactor);
         }
+
+        public static TestToken Tst(this string s)
+        {
+            return new TestToken(BigInteger.Parse(s) * TestToken.WeiFactor);
+        }
     }
 }

Framework/Utils/Time.cs

@@ -33,6 +33,11 @@
             result += $"{d.Seconds} secs";
             return result;
         }
+
+        public static string FormatTimestamp(DateTime d)
+        {
+            return d.ToString("o");
+        }
         
         public static TimeSpan ParseTimespan(string span)
         {

Framework/Utils/Utils.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
 	  <RootNamespace>Utils</RootNamespace>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>

Framework/WebUtils/Endpoint.cs

@@ -1,11 +1,10 @@
-using Logging;
-using Newtonsoft.Json;
-using Serialization = Newtonsoft.Json.Serialization;
-using System.Net.Http.Headers;
+using System.Net.Http.Headers;
 using System.Net.Http.Json;
+using Logging;
+using Newtonsoft.Json;
 using Utils;
 
-namespace Core
+namespace WebUtils
 {
     public interface IEndpoint
     {
@@ -119,7 +118,7 @@ namespace Core
             var errors = new List<string>();
             var deserialized = JsonConvert.DeserializeObject<T>(json, new JsonSerializerSettings()
             {
-                Error = delegate (object? sender, Serialization.ErrorEventArgs args)
+                Error = delegate (object? sender, Newtonsoft.Json.Serialization.ErrorEventArgs args)
                 {
                     if (args.CurrentObject == args.ErrorContext.OriginalObject)
                     {

Framework/WebUtils/Http.cs

@@ -1,7 +1,7 @@
 using Logging;
 using Utils;
 
-namespace Core
+namespace WebUtils
 {
     public interface IHttp
     {
@@ -13,18 +13,21 @@ namespace Core
 
     internal class Http : IHttp
     {
-        private static readonly object httpLock = new object();
+        private static object lockLock = new object();
+        private static readonly Dictionary<string, object> httpLocks = new Dictionary<string, object>();
         private readonly ILog log;
-        private readonly ITimeSet timeSet;
+        private readonly IWebCallTimeSet timeSet;
         private readonly Action<HttpClient> onClientCreated;
+        private readonly string id;
 
-        internal Http(ILog log, ITimeSet timeSet)
-            : this(log, timeSet, DoNothing)
+        internal Http(string id, ILog log, IWebCallTimeSet timeSet)
+            : this(id, log, timeSet, DoNothing)
         {
         }
 
-        internal Http(ILog log, ITimeSet timeSet, Action<HttpClient> onClientCreated)
+        internal Http(string id, ILog log, IWebCallTimeSet timeSet, Action<HttpClient> onClientCreated)
         {
+            this.id = id;
             this.log = log;
             this.timeSet = timeSet;
             this.onClientCreated = onClientCreated;
@@ -63,12 +66,22 @@ namespace Core
 
         private T LockRetry<T>(Func<T> operation, Retry retry)
         {
+            var httpLock = GetLock();
             lock (httpLock)
             {
                 return retry.Run(operation);
             }
         }
 
+        private object GetLock()
+        {
+            lock (lockLock) // I had to.
+            {
+                if (!httpLocks.ContainsKey(id)) httpLocks.Add(id, new object());
+                return httpLocks[id];
+            }
+        }
+
         private HttpClient GetClient()
         {
             var client = new HttpClient();

Framework/WebUtils/HttpFactory.cs

@@ -0,0 +1,43 @@
+using Logging;
+
+namespace WebUtils
+{
+    public interface IHttpFactory
+    {
+        IHttp CreateHttp(string id, Action<HttpClient> onClientCreated);
+        IHttp CreateHttp(string id, Action<HttpClient> onClientCreated, IWebCallTimeSet timeSet);
+        IHttp CreateHttp(string id);
+    }
+
+    public class HttpFactory : IHttpFactory
+    {
+        private readonly ILog log;
+        private readonly IWebCallTimeSet defaultTimeSet;
+
+        public HttpFactory(ILog log)
+            : this (log, new DefaultWebCallTimeSet())
+        {
+        }
+
+        public HttpFactory(ILog log, IWebCallTimeSet defaultTimeSet)
+        {
+            this.log = log;
+            this.defaultTimeSet = defaultTimeSet;
+        }
+
+        public IHttp CreateHttp(string id, Action<HttpClient> onClientCreated)
+        {
+            return CreateHttp(id, onClientCreated, defaultTimeSet);
+        }
+
+        public IHttp CreateHttp(string id, Action<HttpClient> onClientCreated, IWebCallTimeSet ts)
+        {
+            return new Http(id, log, ts, onClientCreated);
+        }
+
+        public IHttp CreateHttp(string id)
+        {
+            return new Http(id, log, defaultTimeSet);
+        }
+    }
+}

Framework/WebUtils/WebCallTimeSet.cs

@@ -1,6 +1,6 @@
-namespace Core
+namespace WebUtils
 {
-    public interface ITimeSet
+    public interface IWebCallTimeSet
     {
         /// <summary>
         /// Timeout for a single HTTP call.
@@ -17,48 +17,27 @@
         /// After a failed HTTP call, wait this long before trying again.
         /// </summary>
         TimeSpan HttpCallRetryDelay();
-
-        /// <summary>
-        /// After a failed K8s operation, wait this long before trying again.
-        /// </summary>
-        TimeSpan K8sOperationRetryDelay();
-
-        /// <summary>
-        /// Maximum total time to attempt to perform a successful k8s operation.
-        /// If k8s operations fail during this timespan, retries will be made.
-        /// </summary>
-        TimeSpan K8sOperationTimeout();
     }
 
-    public class DefaultTimeSet : ITimeSet
+    public class DefaultWebCallTimeSet : IWebCallTimeSet
     {
         public TimeSpan HttpCallTimeout()
         {
-            return TimeSpan.FromMinutes(3);
+            return TimeSpan.FromMinutes(2);
         }
 
         public TimeSpan HttpRetryTimeout()
         {
-            return TimeSpan.FromMinutes(10);
+            return TimeSpan.FromMinutes(5);
         }
 
         public TimeSpan HttpCallRetryDelay()
         {
             return TimeSpan.FromSeconds(1);
         }
-
-        public TimeSpan K8sOperationRetryDelay()
-        {
-            return TimeSpan.FromSeconds(10);
-        }
-
-        public TimeSpan K8sOperationTimeout()
-        {
-            return TimeSpan.FromMinutes(30);
-        }
     }
 
-    public class LongTimeSet : ITimeSet
+    public class LongWebCallTimeSet : IWebCallTimeSet
     {
         public TimeSpan HttpCallTimeout()
         {
@@ -74,15 +53,5 @@
         {
             return TimeSpan.FromSeconds(20);
         }
-
-        public TimeSpan K8sOperationRetryDelay()
-        {
-            return TimeSpan.FromSeconds(30);
-        }
-
-        public TimeSpan K8sOperationTimeout()
-        {
-            return TimeSpan.FromHours(1);
-        }
     }
 }

Framework/WebUtils/WebUtils.csproj

@@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+	</ItemGroup>
+
+	<ItemGroup>
+    <ProjectReference Include="..\Logging\Logging.csproj" />
+    <ProjectReference Include="..\Utils\Utils.csproj" />
+  </ItemGroup>
+
+</Project>

ProjectPlugins/CodexClient/CodexAccess.cs

@@ -0,0 +1,314 @@
+using CodexOpenApi;
+using Logging;
+using Newtonsoft.Json;
+using Utils;
+using WebUtils;
+
+namespace CodexClient
+{
+    public class CodexAccess
+    {
+        private readonly ILog log;
+        private readonly IHttpFactory httpFactory;
+        private readonly IProcessControl processControl;
+        private ICodexInstance instance;
+        private readonly Mapper mapper = new Mapper();
+
+        public CodexAccess(ILog log, IHttpFactory httpFactory, IProcessControl processControl, ICodexInstance instance)
+        {
+            this.log = log;
+            this.httpFactory = httpFactory;
+            this.processControl = processControl;
+            this.instance = instance;
+        }
+
+        public void Stop(bool waitTillStopped)
+        {
+            processControl.Stop(waitTillStopped);
+            // Prevents accidental use after stop:
+            instance = null!;
+        }
+
+        public IDownloadedLog DownloadLog(string additionalName = "")
+        {
+            var file = log.CreateSubfile(GetName() + additionalName);
+            Log($"Downloading logs to '{file.Filename}'");
+            return processControl.DownloadLog(file);
+        }
+
+        public string GetImageName()
+        {
+            return instance.ImageName;
+        }
+
+        public DateTime GetStartUtc()
+        {
+            return instance.StartUtc;
+        }
+
+        public DebugInfo GetDebugInfo()
+        {
+            return mapper.Map(OnCodex(api => api.GetDebugInfoAsync()));
+        }
+
+        public void SetLogLevel(string logLevel)
+        {
+            try
+            {
+                OnCodex(async api =>
+                {
+                    await api.SetDebugLogLevelAsync(logLevel);
+                    return string.Empty;
+                });
+            }
+            catch (Exception exc)
+            {
+                log.Error("Failed to set log level: " + exc);
+            }
+        }
+
+        public string GetSpr()
+        {
+            return CrashCheck(() =>
+            {
+                var endpoint = GetEndpoint();
+                var json = endpoint.HttpGetString("spr");
+                var response = JsonConvert.DeserializeObject<SprResponse>(json);
+                return response!.Spr;
+            });
+        }
+
+        private class SprResponse
+        {
+            public string Spr { get; set; } = string.Empty;
+        }
+
+        public DebugPeer GetDebugPeer(string peerId)
+        {
+            // Cannot use openAPI: debug/peer endpoint is not specified there.
+            return CrashCheck(() =>
+            {
+                var endpoint = GetEndpoint();
+                var str = endpoint.HttpGetString($"debug/peer/{peerId}");
+
+                if (str.ToLowerInvariant() == "unable to find peer!")
+                {
+                    return new DebugPeer
+                    {
+                        IsPeerFound = false
+                    };
+                }
+
+                var result = endpoint.Deserialize<DebugPeer>(str);
+                result.IsPeerFound = true;
+                return result;
+            });
+        }
+
+        public void ConnectToPeer(string peerId, string[] peerMultiAddresses)
+        {
+            OnCodex(api =>
+            {
+                Time.Wait(api.ConnectPeerAsync(peerId, peerMultiAddresses));
+                return Task.FromResult(string.Empty);
+            });
+        }
+
+        public string UploadFile(UploadInput uploadInput)
+        {
+            return OnCodex(api => api.UploadAsync(uploadInput.ContentType, uploadInput.ContentDisposition, uploadInput.FileStream));
+        }
+
+        public Stream DownloadFile(string contentId)
+        {
+            var fileResponse = OnCodex(api => api.DownloadNetworkStreamAsync(contentId));
+            if (fileResponse.StatusCode != 200) throw new Exception("Download failed with StatusCode: " + fileResponse.StatusCode);
+            return fileResponse.Stream;
+        }
+
+        public LocalDataset DownloadStreamless(ContentId cid)
+        {
+            var response = OnCodex(api => api.DownloadNetworkAsync(cid.Id));
+            return mapper.Map(response);
+        }
+
+        public LocalDataset DownloadManifestOnly(ContentId cid)
+        {
+            var response = OnCodex(api => api.DownloadNetworkManifestAsync(cid.Id));
+            return mapper.Map(response);
+        }
+
+        public LocalDatasetList LocalFiles()
+        {
+            return mapper.Map(OnCodex(api => api.ListDataAsync()));
+        }
+
+        public StorageAvailability SalesAvailability(StorageAvailability request)
+        {
+            var body = mapper.Map(request);
+            var read = OnCodex(api => api.OfferStorageAsync(body));
+            return mapper.Map(read);
+        }
+
+        public StorageAvailability[] GetAvailabilities()
+        {
+            var collection = OnCodex(api => api.GetAvailabilitiesAsync());
+            return mapper.Map(collection);
+        }
+
+        public string RequestStorage(StoragePurchaseRequest request)
+        {
+            var body = mapper.Map(request);
+            return OnCodex(api => api.CreateStorageRequestAsync(request.ContentId.Id, body));
+        }
+
+        public CodexSpace Space()
+        {
+            var space = OnCodex(api => api.SpaceAsync());
+            return mapper.Map(space);
+        }
+
+        public StoragePurchase? GetPurchaseStatus(string purchaseId)
+        {
+            return CrashCheck(() =>
+            {
+                var endpoint = GetEndpoint();
+                try
+                {
+                    return Time.Retry(() =>
+                    {
+                        var str = endpoint.HttpGetString($"storage/purchases/{purchaseId}");
+                        if (string.IsNullOrEmpty(str)) throw new Exception("Empty response.");
+                        return JsonConvert.DeserializeObject<StoragePurchase>(str)!;
+                    }, nameof(GetPurchaseStatus));
+                }
+                catch (Exception exc)
+                {
+                    log.Error($"Failed to fetch purchase information for id: '{purchaseId}'. Exception: {exc.Message}");
+                    return null;
+                }
+            });
+
+            // TODO: current getpurchase api does not line up with its openapi spec.
+            // return mapper.Map(OnCodex(api => api.GetPurchaseAsync(purchaseId)));
+        }
+
+        public string GetName()
+        {
+            return instance.Name;
+        }
+
+        public Address GetDiscoveryEndpoint()
+        {
+            return instance.DiscoveryEndpoint;
+        }
+
+        public Address GetApiEndpoint()
+        {
+            return instance.ApiEndpoint;
+        }
+
+        public Address GetListenEndpoint()
+        {
+            return instance.ListenEndpoint;
+        }
+
+        public bool HasCrashed()
+        {
+            return processControl.HasCrashed();
+        }
+
+        public Address? GetMetricsEndpoint()
+        {
+            return instance.MetricsEndpoint;
+        }
+
+        public EthAccount? GetEthAccount()
+        {
+            return instance.EthAccount;
+        }
+
+        public void DeleteDataDirFolder()
+        {
+            processControl.DeleteDataDirFolder();
+        }
+
+        private T OnCodex<T>(Func<CodexApiClient, Task<T>> action)
+        {
+            var result = httpFactory.CreateHttp(GetHttpId(), h => CheckContainerCrashed()).OnClient(client => CallCodex(client, action));
+            return result;
+        }
+
+        private T OnCodex<T>(Func<CodexApiClient, Task<T>> action, Retry retry)
+        {
+            var result = httpFactory.CreateHttp(GetHttpId(), h => CheckContainerCrashed()).OnClient(client => CallCodex(client, action), retry);
+            return result;
+        }
+
+        private T CallCodex<T>(HttpClient client, Func<CodexApiClient, Task<T>> action)
+        {
+            var address = GetAddress();
+            var api = new CodexApiClient(client);
+            api.BaseUrl = $"{address.Host}:{address.Port}/api/codex/v1";
+            return CrashCheck(() => Time.Wait(action(api)));
+        }
+
+        private T CrashCheck<T>(Func<T> action)
+        {
+            try
+            {
+                return action();
+            }
+            finally
+            {
+                CheckContainerCrashed();
+            }
+        }
+
+        private IEndpoint GetEndpoint()
+        {
+            return httpFactory
+                .CreateHttp(GetHttpId(), h => CheckContainerCrashed())
+                .CreateEndpoint(GetAddress(), "/api/codex/v1/", GetName());
+        }
+
+        private Address GetAddress()
+        {
+            return instance.ApiEndpoint;
+        }
+
+        private string GetHttpId()
+        {
+            return GetAddress().ToString();
+        }
+
+        private void CheckContainerCrashed()
+        {
+            if (processControl.HasCrashed()) throw new Exception($"Container {GetName()} has crashed.");
+        }
+
+        private void Throw(Failure failure)
+        {
+            throw failure.Exception;
+        }
+
+        private void Log(string msg)
+        {
+            log.Log($"({GetName()}) {msg}");
+        }
+    }
+
+    public class UploadInput
+    {
+        public UploadInput(string contentType, string contentDisposition, FileStream fileStream)
+        {
+            ContentType = contentType;
+            ContentDisposition = contentDisposition;
+            FileStream = fileStream;
+        }
+
+        public string ContentType { get; }
+        public string ContentDisposition { get; }
+        public FileStream FileStream { get; }
+    }
+}

ProjectPlugins/CodexClient/CodexClient.csproj

@@ -0,0 +1,35 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Remove="openapi.yaml" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <OpenApiReference Include="openapi.yaml" CodeGenerator="NSwagCSharp" Namespace="CodexOpenApi" ClassName="CodexApiClient" />
+  </ItemGroup>
+
+<ItemGroup>
+	<PackageReference Include="Microsoft.Extensions.ApiDescription.Client" Version="7.0.2">
+		<PrivateAssets>all</PrivateAssets>
+		<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+	</PackageReference>
+	<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+	<PackageReference Include="NSwag.ApiDescription.Client" Version="13.18.2">
+		<PrivateAssets>all</PrivateAssets>
+		<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+	</PackageReference>
+</ItemGroup>
+	
+  <ItemGroup>
+    <ProjectReference Include="..\..\Framework\FileUtils\FileUtils.csproj" />
+    <ProjectReference Include="..\..\Framework\Logging\Logging.csproj" />
+    <ProjectReference Include="..\..\Framework\WebUtils\WebUtils.csproj" />
+  </ItemGroup>
+
+</Project>

ProjectPlugins/CodexClient/CodexInstance.cs

@@ -0,0 +1,54 @@
+using Utils;
+
+namespace CodexClient
+{
+    public interface ICodexInstance
+    {
+        string Name { get; }
+        string ImageName { get; }
+        DateTime StartUtc { get; }
+        Address DiscoveryEndpoint { get; }
+        Address ApiEndpoint { get; }
+        Address ListenEndpoint { get; }
+        EthAccount? EthAccount { get; }
+        Address? MetricsEndpoint { get; }
+    }
+
+    public class CodexInstance : ICodexInstance
+    {
+        public CodexInstance(string name, string imageName, DateTime startUtc, Address discoveryEndpoint, Address apiEndpoint, Address listenEndpoint, EthAccount? ethAccount, Address? metricsEndpoint)
+        {
+            Name = name;
+            ImageName = imageName;
+            StartUtc = startUtc;
+            DiscoveryEndpoint = discoveryEndpoint;
+            ApiEndpoint = apiEndpoint;
+            ListenEndpoint = listenEndpoint;
+            EthAccount = ethAccount;
+            MetricsEndpoint = metricsEndpoint;
+        }
+
+        public string Name { get; }
+        public string ImageName { get; }
+        public DateTime StartUtc { get; }
+        public Address DiscoveryEndpoint { get; }
+        public Address ApiEndpoint { get; }
+        public Address ListenEndpoint { get; }
+        public EthAccount? EthAccount { get; }
+        public Address? MetricsEndpoint { get; }
+
+        public static ICodexInstance CreateFromApiEndpoint(string name, Address apiEndpoint, EthAccount? ethAccount = null)
+        {
+            return new CodexInstance(
+                name,
+                imageName: "-",
+                startUtc: DateTime.UtcNow,
+                discoveryEndpoint: Address.Empty(),
+                apiEndpoint: apiEndpoint,
+                listenEndpoint: Address.Empty(),
+                ethAccount: ethAccount,
+                metricsEndpoint: null
+            );
+        }
+    }
+}

ProjectPlugins/CodexClient/CodexLogLevel.cs

@@ -1,4 +1,4 @@
-namespace CodexPlugin
+namespace CodexClient
 {
     public enum CodexLogLevel
     {

ProjectPlugins/CodexClient/CodexLogLine.cs

@@ -1,6 +1,6 @@
 using System.Globalization;
 
-namespace CodexPlugin
+namespace CodexClient
 {
     public class CodexLogLine
     {

ProjectPlugins/CodexClient/CodexNode.cs

@@ -0,0 +1,409 @@
+using CodexClient.Hooks;
+using FileUtils;
+using Logging;
+using Utils;
+
+namespace CodexClient
+{
+    public partial interface ICodexNode : IHasEthAddress, IHasMetricsScrapeTarget
+    {
+        string GetName();
+        string GetImageName();
+        string GetPeerId();
+        DebugInfo GetDebugInfo(bool log = false);
+        void SetLogLevel(string logLevel);
+        string GetSpr();
+        DebugPeer GetDebugPeer(string peerId);
+        ContentId UploadFile(TrackedFile file);
+        ContentId UploadFile(TrackedFile file, string contentType, string contentDisposition);
+        TrackedFile? DownloadContent(ContentId contentId, string fileLabel = "");
+        LocalDataset DownloadStreamless(ContentId cid);
+        /// <summary>
+        /// TODO: This will monitor the quota-used of the node until 'size' bytes are added. That's a very bad way
+        /// to track the streamless download progress. Replace it once we have a good API for this.
+        /// </summary>
+        LocalDataset DownloadStreamlessWait(ContentId cid, ByteSize size);
+        LocalDataset DownloadManifestOnly(ContentId cid);
+        LocalDatasetList LocalFiles();
+        CodexSpace Space();
+        void ConnectToPeer(ICodexNode node);
+        DebugInfoVersion Version { get; }
+        IMarketplaceAccess Marketplace { get; }
+        ITransferSpeeds TransferSpeeds { get; }
+        EthAccount EthAccount { get; }
+        StoragePurchase? GetPurchaseStatus(string purchaseId);
+
+        Address GetDiscoveryEndpoint();
+        Address GetApiEndpoint();
+        Address GetListenEndpoint();
+
+        /// <summary>
+        /// Warning! The node is not usable after this.
+        /// TODO: Replace with delete-blocks debug call once available in Codex.
+        /// </summary>
+        void DeleteDataDirFolder();
+        void Stop(bool waitTillStopped);
+        IDownloadedLog DownloadLog(string additionalName = "");
+        bool HasCrashed();
+    }
+
+    public class CodexNode : ICodexNode
+    {
+        private const string UploadFailedMessage = "Unable to store block";
+        private readonly ILog log;
+        private readonly ICodexNodeHooks hooks;
+        private readonly TransferSpeeds transferSpeeds;
+        private string peerId = string.Empty;
+        private string nodeId = string.Empty;
+        private readonly CodexAccess codexAccess;
+        private readonly IFileManager fileManager;
+
+        public CodexNode(ILog log, CodexAccess codexAccess, IFileManager fileManager, IMarketplaceAccess marketplaceAccess, ICodexNodeHooks hooks)
+        {
+            this.codexAccess = codexAccess;
+            this.fileManager = fileManager;
+            Marketplace = marketplaceAccess;
+            this.hooks = hooks;
+            Version = new DebugInfoVersion();
+            transferSpeeds = new TransferSpeeds();
+
+            this.log = new LogPrefixer(log, $"{GetName()} ");
+        }
+
+        public void Awake()
+        {
+            hooks.OnNodeStarting(codexAccess.GetStartUtc(), codexAccess.GetImageName(), codexAccess.GetEthAccount());
+        }
+
+        public void Initialize()
+        {
+            InitializePeerNodeId();
+            InitializeLogReplacements();
+
+            hooks.OnNodeStarted(this, peerId, nodeId);
+        }
+
+        public IMarketplaceAccess Marketplace { get; }
+        public DebugInfoVersion Version { get; private set; }
+        public ITransferSpeeds TransferSpeeds { get => transferSpeeds; }
+
+        public StoragePurchase? GetPurchaseStatus(string purchaseId)
+        {
+            return codexAccess.GetPurchaseStatus(purchaseId);
+        }
+
+        public EthAddress EthAddress 
+        {
+            get
+            {
+                EnsureMarketplace();
+                return codexAccess.GetEthAccount()!.EthAddress;
+            }
+        }
+
+        public EthAccount EthAccount
+        {
+            get
+            {
+                EnsureMarketplace();
+                return codexAccess.GetEthAccount()!;
+            }
+        }
+
+        public string GetName()
+        {
+            return codexAccess.GetName();
+        }
+
+        public string GetImageName()
+        {
+            return codexAccess.GetImageName();
+        }
+
+        public string GetPeerId()
+        {
+            return peerId;
+        }
+
+        public DebugInfo GetDebugInfo(bool log = false)
+        {
+            var debugInfo = codexAccess.GetDebugInfo();
+            if (log)
+            {
+                var known = string.Join(",", debugInfo.Table.Nodes.Select(n => n.PeerId));
+                Log($"Got DebugInfo with id: {debugInfo.Id}. This node knows: [{known}]");
+            }
+            return debugInfo;
+        }
+
+        public void SetLogLevel(string logLevel)
+        {
+            codexAccess.SetLogLevel(logLevel);
+        }
+
+        public string GetSpr()
+        {
+            return codexAccess.GetSpr();
+        }
+
+        public DebugPeer GetDebugPeer(string peerId)
+        {
+            return codexAccess.GetDebugPeer(peerId);
+        }
+
+        public ContentId UploadFile(TrackedFile file)
+        {
+            return UploadFile(file, "application/octet-stream", $"attachment; filename=\"{Path.GetFileName(file.Filename)}\"");
+        }
+
+        public ContentId UploadFile(TrackedFile file, string contentType, string contentDisposition)
+        {
+            using var fileStream = File.OpenRead(file.Filename);
+            var uniqueId = Guid.NewGuid().ToString();
+            var size = file.GetFilesize();
+
+            hooks.OnFileUploading(uniqueId, size);
+
+            var input = new UploadInput(contentType, contentDisposition, fileStream);
+            var logMessage = $"Uploading file {file.Describe()} with contentType: '{input.ContentType}' and disposition: '{input.ContentDisposition}'...";
+            var measurement = Stopwatch.Measure(log, logMessage, () =>
+            {
+                return codexAccess.UploadFile(input);
+            });
+
+            var response = measurement.Value;
+            transferSpeeds.AddUploadSample(size, measurement.Duration);
+
+            if (string.IsNullOrEmpty(response)) FrameworkAssert.Fail("Received empty response.");
+            if (response.StartsWith(UploadFailedMessage)) FrameworkAssert.Fail("Node failed to store block.");
+
+            Log($"Uploaded file {file.Describe()}. Received contentId: '{response}'.");
+
+            var cid = new ContentId(response);
+            hooks.OnFileUploaded(uniqueId, size, cid);
+            return cid;
+        }
+
+        public TrackedFile? DownloadContent(ContentId contentId, string fileLabel = "")
+        {
+            var file = fileManager.CreateEmptyFile(fileLabel);
+            hooks.OnFileDownloading(contentId);
+            Log($"Downloading '{contentId}'...");
+
+            var logMessage = $"Downloaded '{contentId}' to '{file.Filename}'";
+            var measurement = Stopwatch.Measure(log, logMessage, () => DownloadToFile(contentId.Id, file));
+
+            var size = file.GetFilesize();
+            transferSpeeds.AddDownloadSample(size, measurement);
+            hooks.OnFileDownloaded(size, contentId);
+
+            return file;
+        }
+
+        public LocalDataset DownloadStreamless(ContentId cid)
+        {
+            Log($"Downloading streamless '{cid}' (no-wait)");
+            return codexAccess.DownloadStreamless(cid);
+        }
+
+        public LocalDataset DownloadStreamlessWait(ContentId cid, ByteSize size)
+        {
+            Log($"Downloading streamless '{cid}' (wait till finished)");
+
+            var sw = Stopwatch.Measure(log, nameof(DownloadStreamlessWait), () =>
+            {
+                var startSpace = Space();
+                var result = codexAccess.DownloadStreamless(cid);
+                WaitUntilQuotaUsedIncreased(startSpace, size);
+                return result;
+            });
+
+            return sw.Value;
+        }
+
+        public LocalDataset DownloadManifestOnly(ContentId cid)
+        {
+            Log($"Downloading manifest-only '{cid}'");
+            return codexAccess.DownloadManifestOnly(cid);
+        }
+
+        public LocalDatasetList LocalFiles()
+        {
+            return codexAccess.LocalFiles();
+        }
+
+        public CodexSpace Space()
+        {
+            return codexAccess.Space();
+        }
+
+        public void ConnectToPeer(ICodexNode node)
+        {
+            var peer = (CodexNode)node;
+
+            Log($"Connecting to peer {peer.GetName()}...");
+            var peerInfo = node.GetDebugInfo();
+            codexAccess.ConnectToPeer(peerInfo.Id, GetPeerMultiAddresses(peer, peerInfo));
+
+            Log($"Successfully connected to peer {peer.GetName()}.");
+        }
+
+        public void DeleteDataDirFolder()
+        {
+            codexAccess.DeleteDataDirFolder();
+        }
+
+        public void Stop(bool waitTillStopped)
+        {
+            Log("Stopping...");
+            hooks.OnNodeStopping();
+            codexAccess.Stop(waitTillStopped);
+        }
+
+        public IDownloadedLog DownloadLog(string additionalName = "")
+        {
+            return codexAccess.DownloadLog(additionalName);
+        }
+
+        public Address GetDiscoveryEndpoint()
+        {
+            return codexAccess.GetDiscoveryEndpoint();
+        }
+
+        public Address GetApiEndpoint()
+        {
+            return codexAccess.GetApiEndpoint();
+        }
+
+        public Address GetListenEndpoint()
+        {
+            return codexAccess.GetListenEndpoint();
+        }
+
+        public Address GetMetricsScrapeTarget()
+        {
+            var address = codexAccess.GetMetricsEndpoint();
+            if (address == null) throw new Exception("Metrics ScrapeTarget accessed, but node was not started with EnableMetrics()");
+            return address;
+        }
+
+        public bool HasCrashed()
+        {
+            return codexAccess.HasCrashed();
+        }
+
+        public override string ToString()
+        {
+            return $"CodexNode:{GetName()}";
+        }
+
+        private void InitializePeerNodeId()
+        {
+            var debugInfo = Time.Retry(codexAccess.GetDebugInfo, "ensure online");
+            if (!debugInfo.Version.IsValid())
+            {
+                throw new Exception($"Invalid version information received from Codex node {GetName()}: {debugInfo.Version}");
+            }
+
+            peerId = debugInfo.Id;
+            nodeId = debugInfo.Table.LocalNode.NodeId;
+            Version = debugInfo.Version;
+        }
+
+        private void InitializeLogReplacements()
+        {
+            var nodeName = GetName();
+
+            log.AddStringReplace(peerId, nodeName);
+            log.AddStringReplace(CodexUtils.ToShortId(peerId), nodeName);
+            log.AddStringReplace(nodeId, nodeName);
+            log.AddStringReplace(CodexUtils.ToShortId(nodeId), nodeName);
+        }
+
+        private string[] GetPeerMultiAddresses(CodexNode peer, DebugInfo peerInfo)
+        {
+            var peerId = peer.GetDiscoveryEndpoint().Host
+                .Replace("http://", "")
+                .Replace("https://", "");
+
+            return peerInfo.Addrs.Select(a => a
+                .Replace("0.0.0.0", peerId))
+                .ToArray();
+        }
+
+        private void DownloadToFile(string contentId, TrackedFile file)
+        {
+            using var fileStream = File.OpenWrite(file.Filename);
+            var timeout = TimeSpan.FromMinutes(2.0); // todo: make this user-controllable.
+            try
+            {
+                // Type of stream generated by openAPI client does not support timeouts.
+                var start = DateTime.UtcNow;
+                var cts = new CancellationTokenSource();
+                var downloadTask = Task.Run(() =>
+                {
+                    using var downloadStream = codexAccess.DownloadFile(contentId);
+                    downloadStream.CopyTo(fileStream);
+                }, cts.Token);
+                
+                while (DateTime.UtcNow - start < timeout)
+                {
+                    if (downloadTask.IsFaulted) throw downloadTask.Exception;
+                    if (downloadTask.IsCompletedSuccessfully) return;
+                    Thread.Sleep(100);
+                }
+
+                cts.Cancel();
+                throw new TimeoutException($"Download of '{contentId}' timed out after {Time.FormatDuration(timeout)}");
+            }
+            catch (Exception ex)
+            {
+                Log($"Failed to download file '{contentId}': {ex}");
+                throw;
+            }
+        }
+
+        public void WaitUntilQuotaUsedIncreased(CodexSpace startSpace, ByteSize expectedIncreaseOfQuotaUsed)
+        {
+            WaitUntilQuotaUsedIncreased(startSpace, expectedIncreaseOfQuotaUsed, TimeSpan.FromMinutes(2));
+        }
+
+        public void WaitUntilQuotaUsedIncreased(
+            CodexSpace startSpace,
+            ByteSize expectedIncreaseOfQuotaUsed,
+            TimeSpan maxTimeout)
+        {
+            Log($"Waiting until quotaUsed " +
+                $"(start: {startSpace.QuotaUsedBytes}) " +
+                $"increases by {expectedIncreaseOfQuotaUsed} " +
+                $"to reach {startSpace.QuotaUsedBytes + expectedIncreaseOfQuotaUsed.SizeInBytes}");
+
+            var retry = new Retry($"Checking local space for quotaUsed increase of {expectedIncreaseOfQuotaUsed}",
+            maxTimeout: maxTimeout,
+            sleepAfterFail: TimeSpan.FromSeconds(3),
+            onFail: f => { });
+
+            retry.Run(() =>
+            {
+                var space = Space();
+                var increase = space.QuotaUsedBytes - startSpace.QuotaUsedBytes;
+
+                if (increase < expectedIncreaseOfQuotaUsed.SizeInBytes)
+                    throw new Exception($"Expected quota-used not reached. " +
+                        $"Expected increase: {expectedIncreaseOfQuotaUsed.SizeInBytes} " +
+                        $"Actual increase: {increase} " +
+                        $"Actual used: {space.QuotaUsedBytes}");
+            });
+        }
+
+        private void EnsureMarketplace()
+        {
+            if (codexAccess.GetEthAccount() == null) throw new Exception("Marketplace is not enabled for this Codex node. Please start it with the option '.EnableMarketplace(...)' to enable it.");
+        }
+
+        private void Log(string msg)
+        {
+            log.Log(msg);
+        }
+    }
+}

ProjectPlugins/CodexClient/CodexNodeFactory.cs

@@ -0,0 +1,52 @@
+using CodexClient.Hooks;
+using FileUtils;
+using Logging;
+using WebUtils;
+
+namespace CodexClient
+{
+    public class CodexNodeFactory
+    {
+        private readonly ILog log;
+        private readonly IFileManager fileManager;
+        private readonly CodexHooksFactory hooksFactory;
+        private readonly IHttpFactory httpFactory;
+        private readonly IProcessControlFactory processControlFactory;
+
+        public CodexNodeFactory(ILog log, IFileManager fileManager, CodexHooksFactory hooksFactory, IHttpFactory httpFactory, IProcessControlFactory processControlFactory)
+        {
+            this.log = log;
+            this.fileManager = fileManager;
+            this.hooksFactory = hooksFactory;
+            this.httpFactory = httpFactory;
+            this.processControlFactory = processControlFactory;
+        }
+
+        public CodexNodeFactory(ILog log, HttpFactory httpFactory, string dataDir)
+            : this(log, new FileManager(log, dataDir), new CodexHooksFactory(), httpFactory, new DoNothingProcessControlFactory())
+        {
+        }
+
+        public CodexNodeFactory(ILog log, string dataDir)
+            : this(log, new HttpFactory(log), dataDir)
+        {
+        }
+
+        public ICodexNode CreateCodexNode(ICodexInstance instance)
+        {
+            var processControl = processControlFactory.CreateProcessControl(instance);
+            var access = new CodexAccess(log, httpFactory, processControl, instance);
+            var hooks = hooksFactory.CreateHooks(access.GetName());
+            var marketplaceAccess = CreateMarketplaceAccess(instance, access, hooks);
+            var node =  new CodexNode(log, access, fileManager, marketplaceAccess, hooks);
+            node.Initialize();
+            return node;
+        }
+
+        private IMarketplaceAccess CreateMarketplaceAccess(ICodexInstance instance, CodexAccess access, ICodexNodeHooks hooks)
+        {
+            if (instance.EthAccount == null) return new MarketplaceUnavailable();
+            return new MarketplaceAccess(log, access, hooks);
+        }
+    }
+}

ProjectPlugins/CodexClient/CodexTypes.cs

@@ -1,7 +1,7 @@
 using Newtonsoft.Json;
 using Utils;
 
-namespace CodexPlugin
+namespace CodexClient
 {
     public class DebugInfo
     {
@@ -95,6 +95,11 @@ namespace CodexPlugin
 
         public string Id { get; }
 
+        public override string ToString()
+        {
+            return Id;
+        }
+
         public override bool Equals(object? obj)
         {
             return obj is ContentId id && Id == id.Id;
@@ -104,6 +109,16 @@ namespace CodexPlugin
         {
             return HashCode.Combine(Id);
         }
+
+        public static bool operator ==(ContentId a, ContentId b)
+        {
+            return a.Id == b.Id;
+        }
+
+        public static bool operator !=(ContentId a, ContentId b)
+        {
+            return a.Id != b.Id;
+        }
     }
 
     public class CodexSpace