ZKSYNC and Opensea

[PipoBrown]

I suggest the integration, since Opensea mostly everyone uses.

use web3::types::{Address, U256};
use web3::transports::Http;
use web3::contract::{Contract, Options};
use web3::eth::Eth;
use web3::signing::Signer;
use web3::Transport;
use std::fs::File;
use std::io::Read;

#[tokio::main]
async fn main() {
// Connect to a local Ethereum node
let transport = Http::new("http://localhost:8545").expect("Failed to connect to Ethereum node");
let web3 = Web3::new(transport);

// Example contract address and ABI
let contract_address: Address = "your_contract_address".parse().expect("Failed to parse contract address");
let mut contract_abi = Vec::new();
let mut file = File::open("your_contract_abi.json").expect("Failed to open contract ABI file");
file.read_to_end(&mut contract_abi).expect("Failed to read contract ABI");

// Instantiate the contract
let contract = Contract::new(web3.eth(), contract_address, contract_abi);

// Example marketplace functionality
let seller_address: Address = "seller_address".parse().expect("Failed to parse seller address");
let item_id: U256 = 123.into();

// Perform a transaction to add an item to the marketplace
let options = Options::default();
let tx_hash = contract
    .call_with_confirmations("add_item", (seller_address, item_id), options, 1)
    .await
    .expect("Failed to add item to the marketplace");

println!("Transaction Hash: {:?}", tx_hash);

}