ethers-rs/examples/watch_blocks.rs

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Rust
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use ethers::{prelude::*, utils::Ganache};
use std::time::Duration;
#[tokio::main]
async fn main() -> eyre::Result<()> {
let ganache = Ganache::new().block_time(1u64).spawn();
let ws = Ws::connect(ganache.ws_endpoint()).await?;
let provider = Provider::new(ws).interval(Duration::from_millis(2000));
let mut stream = provider.watch_blocks().await?.take(5);
while let Some(block) = stream.next().await {
let block = provider.get_block(block).await?.unwrap();
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println!(
"Ts: {:?}, block number: {} -> {:?}",
block.timestamp,
block.number.unwrap(),
block.hash.unwrap()
);
}
Ok(())
}