Substrate Node with Cosmos ABCI pallet

A new FRAME-based Substrate node with Cosmos ABCI.

Documentation

Documentation for this project is here

Build

Install Rust:

curl https://sh.rustup.rs -sSf | sh

Initialize your Wasm Build environment:

./scripts/init.sh

Build Wasm and native code:

cargo build

Run

Before running substrate node, you should build and start cosmos node. Go to the our fork of the cosmos-sdk, switch to the branch feature/add_nameservice, then just follow instractions.

To run node locally you will need to specify the environment variables for cosmos-abci pallet.

export ABCI_SERVER_URL=tcp://localhost:26658
export ABCI_GENESIS_STATE_PATH=$HOME/.nsd/config/genesis.json
# or
export ABCI_GENESIS_STATE=$(cat $HOME/.nsd/config/genesis.json)

After any updating of the genesis.json file should specify following encironment variable

export ABCI_GENESIS_STATE=$(cat $HOME/.nsd/config/genesis.json)

Tests

To run tests from local use commands:

# pallet-cosmos-abci
cargo test --test pallet_abci_test
# abci
cargo test --test abci_test

Single Node Development Chain

Purge any existing developer chain state:

./target/release/node-template purge-chain --dev

Start a development chain with:

./target/release/node-template --dev

Detailed logs may be shown by running the node with the following environment variables set: RUST_LOG=debug RUST_BACKTRACE=1 cargo run -- --dev.

Run in Docker

First, install Docker and Docker Compose.

Then run the following command to start a single node development chain.

./scripts/docker_run.sh

This command will firstly compile your code, and then start a local development network. You can also replace the default command (cargo build --release && ./target/release/node-template --dev --ws-external) by appending your own. A few useful ones are as follow.

# Run Substrate node without re-compiling
./scripts/docker_run.sh ./target/release/node-template --dev --ws-external

# Purge the local dev chain
./scripts/docker_run.sh ./target/release/node-template purge-chain --dev

# Check whether the code is compilable
./scripts/docker_run.sh cargo check

CosmosRPC REST calls

• Request to CosmosRPC API: { "jsonrpc": "2.0", "method": <method_name>, "id": 0, "params": <method_params> }