Como leer una API REST con axios en React JS

// npm install axios --save

import { useEffect, useState } from 'react';
import './App.css';

import axios from "axios";

function App() {
  const [user, setUser] = useState([]);

  const fetchData = () => {
    return axios.get("http://domain.com/api/v1/users")
          .then((response) => setUser(response.data));
  }

  useEffect(() => {
    fetchData();
  },[])

  return (
    <main>
      <div className='container'>
      <h1>Users</h1>
      <ul>
        {user && user.length > 0 && user.map((userObj, index) => (
            <li key={userObj._id}>{userObj.nya}</li>
          ))}
      </ul>
      </div>
    </main>
  );
}

export default App;