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fix: replace hardcoded API key with environment variable in basic example #694

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fix: replace hardcoded API key with environment variable in basic example #694

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6 changes: 5 additions & 1 deletion examples/basic.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@ use std::{path::PathBuf, str::FromStr};

use alloy::eips::BlockNumberOrTag;
use alloy::primitives::{utils::format_ether, Address};
use dotenv::dotenv;
use eyre::Result;
use tracing::info;
use tracing_subscriber::filter::{EnvFilter, LevelFilter};
Expand All @@ -22,7 +23,10 @@ async fn main() -> Result<()> {

tracing::subscriber::set_global_default(subscriber).expect("subscriber set failed");

let untrusted_rpc_url = "https://eth-mainnet.g.alchemy.com/v2/<YOUR_API_KEY>";
// Load the RPC URL using environment variable for security
dotenv().ok();
let untrusted_rpc_url = std::env::var("MAINNET_EXECUTION_RPC")
.expect("MAINNET_EXECUTION_RPC environment variable not set");
info!("Using untrusted RPC URL [REDACTED]");

let consensus_rpc = "https://www.lightclientdata.org";
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