prevent memory leak using useEffect and fetch external api

some-component.js

import React, { useState, useEffect } from 'react';

function FetchData() {
  const [data, setData] = useState(null);
  const [error, setError] = useState(null);

  useEffect(() => {
    // Create a new AbortController instance
    const abortController = new AbortController();
    const signal = abortController.signal;

    const fetchData = async () => {
      try {
        const response = await fetch('https://api.example.com/data', { signal });
        if (!response.ok) {
          throw new Error(`Error: ${response.status}`);
        }
        const responseData = await response.json();
        setData(responseData);
      } catch (error) {
        // Only set the error state if the error is not due to the fetch being aborted
        if (!signal.aborted) {
          setError(error);
        }
      }
    };

    fetchData();

    // Cleanup function that will be called when the component is unmounted
    return () => {
      abortController.abort();
    };
  }, []); // Empty dependency array to only run the effect on mount and unmount

  if (error) {
    return <div>Error: {error.message}</div>;
  }

  if (!data) {
    return <div>Loading...</div>;
  }

  return (
    <div>
      <h1>Data</h1>
      {/* Render the data as needed */}
    </div>
  );
}

export default FetchData;