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Codex Decentralized Durability Engine

The Codex project aims to create a decentralized durability engine that allows persisting data in p2p networks. In other words, it allows storing files and data with predictable durability guarantees for later retrieval.

WARNING: This project is under active development and is considered pre-alpha.

License: Apache License: MIT Stability: experimental CI Codecov Discord

Build and Run

For detailed instructions on preparing to build nim-codex see Building Codex.

To build the project, clone it and run:

make update && make

The executable will be placed under the build directory under the project root.

Run the client with:

build/codex

CLI Options

build/codex --help
Usage:

codex [OPTIONS]... command

The following options are available:

     --log-level            Sets the log level [=INFO].
     --metrics              Enable the metrics server [=false].
     --metrics-address      Listening address of the metrics server [=127.0.0.1].
     --metrics-port         Listening HTTP port of the metrics server [=8008].
 -d, --data-dir             The directory where codex will store configuration and data..
 -i, --listen-addrs         Multi Addresses to listen on [=/ip4/0.0.0.0/tcp/0].
 -a, --nat                  IP Addresses to announce behind a NAT [=127.0.0.1].
 -e, --disc-ip              Discovery listen address [=0.0.0.0].
 -u, --disc-port            Discovery (UDP) port [=8090].
     --net-privkey          Source of network (secp256k1) private key file path or name [=key].
 -b, --bootstrap-node       Specifies one or more bootstrap nodes to use when connecting to the network..
     --max-peers            The maximum number of peers to connect to [=160].
     --agent-string         Node agent string which is used as identifier in network [=Codex].
 -p, --api-port             The REST Api port [=8080].
     --repo-kind            backend for main repo store (fs, sqlite) [=fs].
 -q, --storage-quota        The size of the total storage quota dedicated to the node [=8589934592].
 -t, --block-ttl            Default block timeout in seconds - 0 disables the ttl [=86400].
 -c, --cache-size           The size in MiB of the block cache, 0 disables the cache - might help on slow
                            hardrives [=0].
     --persistence          Enables persistence mechanism, requires an Ethereum node [=false].
     --eth-provider         The URL of the JSON-RPC API of the Ethereum node [=ws://localhost:8545].
     --eth-account          The Ethereum account that is used for storage contracts [=EthAddress.none].
     --eth-deployment       The json file describing the contract deployment [=string.none].

Available sub-commands:

codex initNode

Example: running two Codex clients

To get acquainted with Codex, consider running the manual two-client test described HERE.

API

The client exposes a REST API that can be used to interact with the clients. Overview of the API can be found on api.codex.storage.