Expand description
§SequencerClient
This library is used to read messages from the arbitrum sequencer feed and parses them into alloy transactions.
§Features
§It supports the following transaction types:
- Legacy transactions
- EIP-2930 transactions
- EIP-1559 transactions
- EIP-7702 transactions
§It does not support:
- EIP-4844 transactions
- Compressed transactions (Not implemented in arbitrum reference either)
- Non-mutating calls (Not implemented in arbitrum reference either)
- Heartbeat messages (Deprecated, not used in arbitrum anymore)
Reference implementation: https://github.com/OffchainLabs/nitro/blob/9b1e622102fa2bebfd7dffd327be19f8881f1467/arbos/incomingmessage.go#L328
§Warning
Using the library without a defaut CryptoProvider will cause a panic. Make sure to install a default CryptoProvider.
§Example
use sequencer_client::reader::SequencerReader;
#[tokio::main()]
async fn main() {
let url = "wss://arb1-feed.arbitrum.io/feed";
rustls::crypto::aws_lc_rs::default_provider()
.install_default()
.expect("Failed to install rustls crypto provider");
let (mut reader, mut receiver) = SequencerReader::new(url).await;
tokio::spawn(async move {
while let Some(msg) = receiver.recv().await {
println!("Received message: {:?}", msg.sequence_number());
}
});
reader.start_reading().await;
}
Re-exports§
pub use reader::SequencerMessage;pub use reader::SequencerReader;