错误：重新渲染过多。 React 限制渲染次数以防止无限循环。 反应

Question

I am Facing the Below Mentioned Error When Fetching Data from Firebase and Setting it to State Inside a useEffect Hook.

Here is The Code i am Using With Simplified Markup:

function PostComponent({ id }){
  const [post,setPost] = useState({});
  const [error,setError] = useState("");

  const db = firebase.firestore();

  useEffect(()=>{
    db.collection('posts').doc(id).get().then(doc=>{
      setPost(doc.data());
    }).catch(err=>setError(err.message));
  }, []);

  return (
    {error && <h1>{ error }</h1>}
    <PostCard data={post} />
  );
}

Update!!

• I Fixed The Error Because i realised that it was an issue with Setting the state inside the child component.Thanks to everybody that invested time into Helping Me.

Answer 1

Can you pls try it like this:

//this can be outsite of your component
const db = firebase.firestore();

function PostComponent({ id }){
  const [post,setPost] = useState({});
  const [error,setError] = useState("");

  useEffect(()=>{
    db.collection('posts').doc(id).get().then(doc=>{
      setPost(doc.data());
    }).catch(err=>setError(err.message));
  }, [id]);

  return (
    {error && <h1>{ error }</h1>}
    <PostCard data={post} />
  );
}

If that doesn't work then the error is probably comming from another component.