Ethers Flashbots

An Ethers middleware to send transactions as Flashbots bundles.

Installation

Add ethers-flashbots to your Cargo.toml.

```toml

This is the development version, for the stable release refer

to crates.io

ethers-flashbots = { git = "https://github.com/onbjerg/ethers-flashbots" } ```

Usage

```rs use anyhow::Result; use ethers::core::rand::threadrng; use ethers::prelude::*; use ethersflashbots::*; use std::convert::TryFrom; use url::Url;

[tokio::main]

async fn main() -> Result<()> { // Connect to the network let provider = Provider::::try_from("https://mainnet.eth.aragon.network")?;

// This is your searcher identity
let bundle_signer = LocalWallet::new(&mut thread_rng());
// This signs transactions
let wallet = LocalWallet::new(&mut thread_rng());

// Add signer and Flashbots middleware
let client = SignerMiddleware::new(
    FlashbotsMiddleware::new(
        provider,
        Url::parse("https://relay.flashbots.net")?,
        bundle_signer,
    ),
    wallet,
);

// Pay Vitalik using a Flashbots bundle!
let tx = TransactionRequest::pay("vitalik.eth", 100);
let pending_tx = client.send_transaction(tx, None).await?;

// Get the receipt
let receipt = pending_tx
    .await?
    .ok_or_else(|| anyhow::format_err!("tx not included"))?;
let tx = client.get_transaction(receipt.transaction_hash).await?;

println!("Sent transaction: {}\n", serde_json::to_string(&tx)?);
println!("Receipt: {}\n", serde_json::to_string(&receipt)?);

Ok(())

} ```

See the examples for more in-depth examples.

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure that the tests and lints pass (cargo test && cargo clippy -- -D clippy::all && cargo fmt -- --check).