Substreams for Cosmos

This library contains the generated Rust protobuf bindings for Cosmos Block as well as helper methods to extract and parse block data.

📖 Documentation

https://docs.rs/substreams-cosmos

Further resources

• Substreams documentation

Install

cargo add substreams-cosmos

Usage

Refer to Docs.rs for helper methods on Block that extract action and transaction iterators from the Cosmos block.

Cargo.toml

[dependencies]
substreams = "0.5"
substreams-cosmos = "0.1"

src/lib.rs

use substreams::errors::Error;
use substreams_cosmos::pb::{Block, Events};

#[substreams::handlers::map]
fn map_events(block: Block) -> Result<Events, Error> {
    let mut events = vec![];

    for tx in block.tx_results {
        for event in tx.events {
            events.push(event);
        }
    }
    Ok(Events { events })
}

Release

• Run Make if there were changes in protobufs
• Bump up version in workspace Cargo.toml
• Commit changes
• Tag a release: https://github.com/pinax-network/substreams-cosmos/releases
• Publish packages in this order: core, substreams-cosmos.