//! Example of using `AnyNetwork` to get a type-safe representation of

//! network-specific data.

//!

//! In this example, we extract the `gasUsedForL1` and `l1BlockNumber` fields

//! of Arbitrum's transaction receipts.

use alloy::{

network::AnyNetwork,

primitives::{address, Address, U128, U256, U64},

providers::ProviderBuilder,

signers::local::PrivateKeySigner,

sol,

};

use eyre::Result;

// The address of the contract below deployed to Arbitrum Sepolia.

const COUNTER_CONTRACT_ADDRESS: Address = address!("d62FC4aB418580919F22E2aC3A0D93F832A95E70");

sol! {

#[allow(missing_docs)]

#[sol(rpc)]

contract Counter {

uint256 public number;

function setNumber(uint256 newNumber) public {

number = newNumber;

}

function increment() public {

number++;

}

}

}

#[derive(Debug, serde::Deserialize)]

struct ArbOtherFields {

#[serde(rename = "gasUsedForL1")]

gas_used_for_l1: U128,

#[serde(rename = "l1BlockNumber")]

l1_block_number: U64,

}

#[tokio::main]

async fn main() -> Result<()> {

// [RISK WARNING! Writing a private key in the code file is insecure behavior.]

// The following code is for testing only. Set up signer from private key, be aware of danger.

let signer: PrivateKeySigner = "<PRIVATE_KEY>".parse().expect("should parse private key");

// Create a provider with the Arbitrum Sepolia network and the wallet.

let rpc_url = "https://sepolia-rollup.arbitrum.io/rpc".parse()?;

let provider =

ProviderBuilder::new().network::<AnyNetwork>().wallet(signer).connect_http(rpc_url);

// Create a contract instance.

let contract = Counter::new(COUNTER_CONTRACT_ADDRESS, &provider);

// Set the number to 42.

let builder = contract.setNumber(U256::from(42));

let receipt = builder.send().await?.get_receipt().await?;

// Fetch the `gasUsedForL1` and `l1BlockNumber` fields from the receipt.

let arb_fields: ArbOtherFields = receipt.other.deserialize_into()?;

let l1_gas = arb_fields.gas_used_for_l1.to::<u128>();

let l1_block_number = arb_fields.l1_block_number.to::<u64>();

println!("Gas used for L1: {l1_gas}");

println!("L1 block number: {l1_block_number}");

Ok(())

}