web3-proxy/web3_proxy_cli/examples/watch_blocks.rs

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/// poll an http rpc
use ethers::prelude::*;
use std::{str::FromStr, time::Duration};
#[tokio::main]
async fn main() -> anyhow::Result<()> {
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fdlimit::raise_fd_limit();
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// erigon does not support most filters
// let url = "http://10.11.12.16:8545";
// geth
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let url = "http://10.11.12.16:8545";
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println!("Watching blocks from {:?}", url);
let provider = Http::from_str(url)?;
let provider = Provider::new(provider).interval(Duration::from_secs(1));
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let mut stream = provider.watch_blocks().await?;
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while let Some(block_number) = stream.next().await {
let block = provider.get_block(block_number).await?.unwrap();
println!(
"{:?} = Ts: {:?}, block number: {}",
block.hash.unwrap(),
block.timestamp,
block.number.unwrap(),
);
}
Ok(())
}