Integration of ZkSync with Opensea NFT Marketplace

[ProfParadox123]

[dependencies]
web3 = "0.18.0"
tokio = { version = "1", features = ["full"] }

use web3::types::{Address, U256};
use web3::transports::Http;
use web3::Web3;

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

// Example contract address and ABI
let contract_address: Address = "your_contract_address".parse().unwrap();
let contract_abi = include_bytes!("your_contract_abi.json");

// Instantiate the contract
let contract = web3.eth().contract(contract_abi);

// Example marketplace functionality
let seller_address: Address = "seller_address".parse().unwrap();
let item_id: U256 = 123.into();

// Perform a transaction to add an item to the marketplace
let tx_hash = contract
    .send()
    .add_item(seller_address, item_id)
    .from(seller_address)
    .send()
    .await
    .unwrap();

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

}