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

use alloy::{

network::{EthereumWallet, TransactionBuilder},

primitives::{address, U256},

providers::{Provider, ProviderBuilder},

rpc::types::TransactionRequest,

signers::ledger::{HDPath, LedgerSigner},

};

use eyre::Result;

#[tokio::main]

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

// Instantiate the application by acquiring a lock on the Ledger device.

let signer = LedgerSigner::new(HDPath::LedgerLive(0), Some(1)).await?;

let wallet = EthereumWallet::from(signer);

// Create a provider with the wallet.

let rpc_url = "https://eth.merkle.io".parse()?;

let provider = ProviderBuilder::new().wallet(wallet).on_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(())

}