fix: only run tracing example if env var is set
use ethers::prelude::*;
use eyre::Result;
-use std::{env, str::FromStr};
+use std::str::FromStr;
+/// use `debug_traceTransaction` to fetch traces
+/// requires, a valid endpoint in `RPC_URL` env var that supports `debug_traceTransaction`
#[tokio::main]
async fn main() -> Result<()> {
- let rpc_url: String = env::var("RPC_URL")?;
- let client = Provider::<Http>::try_from(rpc_url)?;
+ if let Ok(url) = std::env::var("RPC_URL") {
+ let client = Provider::<Http>::try_from(url)?;
let tx_hash = "0x97a02abf405d36939e5b232a5d4ef5206980c5a6661845436058f30600c52df7";
let h: H256 = H256::from_str(tx_hash)?;
let options: GethDebugTracingOptions = GethDebugTracingOptions::default();
let traces = client.debug_trace_transaction(h, options).await?;
println!("{:?}", traces);
+ }
Ok(())
}
