App.js example in API Call Best Practice

App.js

import React from "react";
import "./App.css";
import Api from "./helper/api";

function App() {
  const api = new Api();

  const fetchUser = () => {
    api
      .getUserList()
      .then((response) => console.log(response))
      .catch((err) => console.log(err));
  };

  return <div className="App"></div>;
}

export default App;