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| 1 | +//! # Odyssey Relay |
| 2 | +//! |
| 3 | +//! TBD |
| 4 | +
|
| 5 | +use alloy_provider::{network::EthereumWallet, Provider, ProviderBuilder}; |
| 6 | +use alloy_rpc_client::RpcClient; |
| 7 | +use alloy_signer_local::PrivateKeySigner; |
| 8 | +use clap::Parser; |
| 9 | +use eyre::Context; |
| 10 | +use jsonrpsee::server::Server; |
| 11 | +use odyssey_wallet::{OdysseyWallet, OdysseyWalletApiServer}; |
| 12 | +use reth_tracing::Tracer; |
| 13 | +use std::net::{IpAddr, Ipv4Addr}; |
| 14 | +use tracing::info; |
| 15 | +use url::Url; |
| 16 | + |
| 17 | +/// The Odyssey relayer service sponsors transactions for EIP-7702 accounts. |
| 18 | +#[derive(Debug, Parser)] |
| 19 | +#[command(author, about = "Relay", long_about = None)] |
| 20 | +struct Args { |
| 21 | + /// The address to serve the RPC on. |
| 22 | + #[arg(long = "http.addr", value_name = "ADDR", default_value_t = IpAddr::V4(Ipv4Addr::LOCALHOST))] |
| 23 | + address: IpAddr, |
| 24 | + /// The port to serve the RPC on. |
| 25 | + #[arg(long = "http.port", value_name = "PORT", default_value_t = 9119)] |
| 26 | + port: u16, |
| 27 | + /// The RPC endpoint of the chain to send transactions to. |
| 28 | + #[arg(long, value_name = "RPC_ENDPOINT")] |
| 29 | + upstream: Url, |
| 30 | + /// The secret key to sponsor transactions with. |
| 31 | + #[arg(long, value_name = "SECRET_KEY", env = "RELAY_SK")] |
| 32 | + secret_key: String, |
| 33 | +} |
| 34 | + |
| 35 | +/// Run the relayer service. |
| 36 | +async fn run(args: Args) -> eyre::Result<()> { |
| 37 | + let _guard = reth_tracing::RethTracer::new().init()?; |
| 38 | + |
| 39 | + // construct provider |
| 40 | + let signer: PrivateKeySigner = args.secret_key.parse().wrap_err("Invalid signing key")?; |
| 41 | + let wallet = EthereumWallet::from(signer); |
| 42 | + let rpc_client = RpcClient::new_http(args.upstream).boxed(); |
| 43 | + let provider = |
| 44 | + ProviderBuilder::new().with_recommended_fillers().wallet(wallet).on_client(rpc_client); |
| 45 | + |
| 46 | + // get chain id |
| 47 | + let chain_id = provider.get_chain_id().await?; |
| 48 | + |
| 49 | + // construct rpc module |
| 50 | + let rpc = OdysseyWallet::new(provider, chain_id, vec![]).into_rpc(); |
| 51 | + |
| 52 | + // start server |
| 53 | + let server = Server::builder().http_only().build((args.address, args.port)).await?; |
| 54 | + info!(addr = ?server.local_addr().unwrap(), "Started relay service"); |
| 55 | + |
| 56 | + let handle = server.start(rpc); |
| 57 | + handle.stopped().await; |
| 58 | + |
| 59 | + Ok(()) |
| 60 | +} |
| 61 | + |
| 62 | +#[doc(hidden)] |
| 63 | +#[tokio::main] |
| 64 | +async fn main() { |
| 65 | + // Enable backtraces unless a RUST_BACKTRACE value has already been explicitly provided. |
| 66 | + if std::env::var_os("RUST_BACKTRACE").is_none() { |
| 67 | + std::env::set_var("RUST_BACKTRACE", "1"); |
| 68 | + } |
| 69 | + |
| 70 | + let args = Args::parse(); |
| 71 | + if let Err(err) = run(args).await { |
| 72 | + eprint!("Error: {err:?}"); |
| 73 | + std::process::exit(1); |
| 74 | + } |
| 75 | +} |
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