//! Example of signing and sending a transaction using a Yubi device.

use alloy::{

network::TransactionBuilder,

primitives::{address, U256},

providers::{Provider, ProviderBuilder},

rpc::types::TransactionRequest,

signers::local::{

yubihsm::{Connector, Credentials, UsbConfig},

YubiSigner,

},

};

use eyre::Result;

#[tokio::main]

async fn main() -> Result<()> {

// We use USB for the example, but you can connect over HTTP as well. Refer

// to the [YubiHSM](https://docs.rs/yubihsm/0.34.0/yubihsm/) docs for more information.

let connector = Connector::usb(&UsbConfig::default());

// Instantiate the connection to the YubiKey. Alternatively, use the

// `from_key` method to upload a key you already have, or the `new` method

// to generate a new keypair.

let signer = YubiSigner::connect(connector, Credentials::default(), 0);

// Create a provider with the wallet.

let rpc_url = "https://reth-ethereum.ithaca.xyz/rpc".parse()?;

let provider = ProviderBuilder::new().wallet(signer).connect_http(rpc_url);

// Build a transaction to send 100 wei from Alice to Vitalik.

// The `from` field is automatically filled to the first signer's address (Alice).

let vitalik = address!("d8dA6BF26964aF9D7eEd9e03E53415D37aA96045");

let tx = TransactionRequest::default().with_to(vitalik).with_value(U256::from(100));

// Send the transaction and wait for inclusion with 3 confirmations.

let tx_hash =

provider.send_transaction(tx).await?.with_required_confirmations(3).watch().await?;

println!("Sent transaction: {tx_hash}");

Ok(())

}