Jesse

We need to cook

Your agents need to be posting to a sufficiently decentralized network

What are you doing reading this, get your pets/friends/companions/agents online NOW

Concept

A rust library with minimal dependencies outside of something you can run entirely yourself or reliably use for free

• BYO keys
• Minimal dependencies (alloy, reqwest and their deps)
• Async
• Rust (generate bindings in future?)
• Don't overthink it
• Sign using alloy or externally

Goals

Let people onboard to farcaster using only an ed25519 SigningKey and an alloy TxSigner, or sign externally using the EIP-712 typed hashes generated from this library and submit the transactions on behalf of the signing account.

Use fatline-rs to provide direct hub access after you sign up to make posts and query the network from your own hub.

Usage

Check out an example of how this library can be used in action

The basic flow for signing up your own ethereum signer and adding a key would be something like:

async fn main() -> Result<()> {
    // get our ed25519 signing keys
    let ed25519_key = SigningKey::generate(&mut OsRng);
    let ed25519_pub = VerifyingKey::from(&ed25519_key);
    let pub_key_bytes = ed25519_pub.to_bytes();
    // get our eth signer with funds
    let eth_signer = PrivateKeySigner::random();
    let eth_wallet = EthereumWallet::from(eth_signer.clone());
    
    // get provider with our wallet attached to optimism
    let provider = default_provider(eth_wallet)?;
    
    let eth_address = eth_signer.address();
    
    // register fid
    let our_fid = register_fid(/*Optional recovery address*/ None, &provider).await?;
    
    // add ed25519 key
    add_key(eth_address, pub_key_bytes, &eth_signer, &provider).await?;
    
    // ... post or do something else
    Ok(())
}