ERC20

ERC20 is a Rust libary relying on Alloy allowing to interact with ERC-20 contracts.

Installation

Add erc20-rs to your Cargo.toml.

erc20-rs = { git = "https://github.com/leruaa/erc20-rs" }

Features

• A basic Token struct and associated extensions methods on Alloy's Provider, allowing to retrieve token decimals, and compute balances as BigDecimal from U256.
• A TokenStore trait, and a BasicTokenStore impl, allowing to cache Tokens in memory.
• A LazyToken struct, acting as a wrapper around Alloy contract instance, lazily retrieving name, symbol, decimals and totalSupply from the blockchain.

Getting started

let provider = ProviderBuilder::new().on_http("https://...".parse()?);

// Just retrieve a token from its address
let dai = provider
    .retrieve_token(address!("6B175474E89094C44Da98b954EedeAC495271d0F"))
    .await?;

// Compute a balance as a BigDecimal from a U256
let balance = dai.get_balance(U256::from(1000000000000_u64));