feat: slots rest api (#443)

Co-authored-by: markspanbroek <mark@spanbroek.net>

codex/contracts/market.nim

@@ -1,4 +1,5 @@
 import std/strutils
+import std/strformat
 import pkg/chronicles
 import pkg/ethers
 import pkg/ethers/testing
@@ -52,7 +53,10 @@ method myRequests*(market: OnChainMarket): Future[seq[RequestId]] {.async.} =
   return await market.contract.myRequests
 
 method mySlots*(market: OnChainMarket): Future[seq[SlotId]] {.async.} =
-  return await market.contract.mySlots()
+  let slots = await market.contract.mySlots()
+  debug "Fetched my slots", numSlots=len(slots)
+
+  return slots
 
 method requestStorage(market: OnChainMarket, request: StorageRequest){.async.} =
   debug "Requesting storage"

codex/proving.nim

@@ -56,6 +56,7 @@ proc prove(proving: Proving, slot: Slot) {.async.} =
   without onProve =? proving.onProve:
     raiseAssert "onProve callback not set"
   try:
+    debug "Proving slot"
     let proof = await onProve(slot)
     await proving.market.submitProof(slot.id, proof)
   except CatchableError as e:

codex/rest/api.nim

@@ -313,6 +313,17 @@ proc initRestApi*(node: CodexNodeRef, conf: CodexConf): RestRouter =
         trace "debug/peer returning peer record"
         return RestApiResponse.response($json)
 
+  router.api(
+    MethodGet,
+    "/api/codex/v1/sales/slots") do () -> RestApiResponse:
+      ## Returns active slots for the host
+
+      without contracts =? node.contracts.host:
+        return RestApiResponse.error(Http503, "Sales unavailable")
+
+      let json = %(await contracts.sales.mySlots())
+      return RestApiResponse.response($json, contentType="application/json")
+
   router.api(
     MethodGet,
     "/api/codex/v1/sales/availability") do () -> RestApiResponse:

codex/rest/json.nim

@@ -55,6 +55,13 @@ func `%`*(arr: openArray[byte]): JsonNode =
 func `%`*(id: RequestId | SlotId | Nonce | AvailabilityId): JsonNode =
   % id.toArray
 
+func `%`*(obj: StorageRequest | Slot): JsonNode =
+  let jsonObj = newJObject()
+  for k, v in obj.fieldPairs: jsonObj[k] = %v
+  jsonObj["id"] = %(obj.id)
+
+  return jsonObj
+
 func `%`*(purchase: Purchase): JsonNode =
   %*{
     "state": purchase.state |? "none",

codex/sales.nim

@@ -100,20 +100,28 @@ proc handleRequest(sales: Sales,
   agent.start(SaleDownloading())
   sales.agents.add agent
 
-proc load*(sales: Sales) {.async.} =
+proc mySlots*(sales: Sales): Future[seq[Slot]] {.async.} =
   let market = sales.context.market
-
   let slotIds = await market.mySlots()
+  var slots: seq[Slot] = @[]
 
   for slotId in slotIds:
     if slot =? (await market.getActiveSlot(slotId)):
-      let agent = newSalesAgent(
-        sales.context,
-        slot.request.id,
-        slot.slotIndex,
-        some slot.request)
-      agent.start(SaleUnknown())
-      sales.agents.add agent
+      slots.add slot
+
+  return slots
+
+proc load*(sales: Sales) {.async.} =
+  let slots = await sales.mySlots()
+
+  for slot in slots:
+    let agent = newSalesAgent(
+      sales.context,
+      slot.request.id,
+      slot.slotIndex,
+      some slot.request)
+    agent.start(SaleUnknown())
+    sales.agents.add agent
 
 proc start*(sales: Sales) {.async.} =
   doAssert sales.subscription.isNone, "Sales already started"

openapi.yaml

@@ -116,6 +116,18 @@ components:
           type: string
           description: Maximum collateral user is willing to pay per filled Slot (in amount of tokens)
 
+    Slot:
+      type: object
+      properties:
+        id:
+          type: string
+          description: Slot ID
+        request:
+          $ref: "#/components/schemas/StorageRequest"
+        slotIndex:
+          type: string
+          description: Slot Index as hexadecimal string
+
     StorageRequestCreation:
       type: object
       required:
@@ -166,6 +178,9 @@ components:
     StorageRequest:
       type: object
       properties:
+        id:
+          type: string
+          description: Request ID
         client:
           $ref: "#/components/schemas/EthereumAddress"
         ask:
@@ -286,14 +301,32 @@ paths:
         "500":
           description: Well it was bad-bad and the upload did not work out
 
+  "/sales/slots":
+    get:
+      summary: "Returns active slots"
+      tags: [ Marketplace ]
+      operationId: getActiveSlots
+      responses:
+        "200":
+          description: Retrieved active slots
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: "#/components/schemas/Slot"
+
+        "503":
+          description: Sales are unavailable
+
   "/sales/availability":
     get:
       summary: "Returns storage that is for sale"
       tags: [ Marketplace ]
-      operationId: getsOfferedStorage
+      operationId: getOfferedStorage
       responses:
         "200":
-          description: Retrieved content specified by CID
+          description: Retrieved storage availabilities of the node
           content:
             application/json:
               schema:

tests/integration/codexclient.nim

@@ -50,6 +50,11 @@ proc getPurchase*(client: CodexClient, purchase: string): JsonNode =
   let body = client.http.getContent(url)
   parseJson(body).catch |? nil
 
+proc getSlots*(client: CodexClient): JsonNode =
+  let url = client.baseurl & "/sales/slots"
+  let body = client.http.getContent(url)
+  parseJson(body).catch |? nil
+
 proc postAvailability*(client: CodexClient,
                        size, duration, minPrice: uint64, maxCollateral: uint64): JsonNode =
   let url = client.baseurl & "/sales/availability"

vendor/nim-ethers

@@ -1 +1 @@
-Subproject commit 5a4f786757124c903ab46499689db8273ee5ac80
+Subproject commit 18e225607cc6add166b93df6ac4229936a641318