const ppdContract = "0x6962FC3a4Bc379107d4a512e91DC227Fe04889Ad"; const ppdAbi = fetch( "https://raw.githubusercontent.com/gonzalobarria/testpub/master/abis/abitest.json" ); const [userName, setUserName] = useState(""); const addUser = () => { const ppd = new ethers.Contract( ppdContract, ppdAbi.body, Ethers.provider().getSigner() ); ppd.addUser(userName, 0); }; return ( <> <div> <input className="form-control m-2 p-2" type="text" id="userName" name="userName" required placeholder="Full Name" onChange={(event) => { setUserName(event.target.value); }} /> <button onClick={addUser}>Register</button> </div> </> );