如何从 Firestore 获取当前用户的文档？

Question

I'm trying do display data from Firestore database in my component.

This is my function:

const getData = async () => {
    const data = [];

    const querySnapshot = await getDocs(
      collection(databaseRef, "mK7DFNJgRAPmtvgrZh7X6AOj8cR2")
    );
    console.log(querySnapshot);
    querySnapshot.forEach((doc) => {
      console.log(doc.id, " => ", doc.data().Title);
      data.push({
        About: doc.data().About,
        Title: doc.data().Title,
        Who: doc.data().Who,
      });
    });
    setData(data);
  };

Collection ID = Current logged in User. I want to display every document. Everything works fine but insteed of passing hard-coded string here:

      collection(databaseRef, "mK7DFNJgRAPmtvgrZh7X6AOj8cR2")

I would like to pass variable where I store my UID.

Is there any way to do that?

Answer 1

Assuming your user is logged in, you should be able to access their UID via firebase.auth().currentUser.uid . This question 's answers may be useful for more information on getting the current user's ID.

With that, you should be able to do:

const querySnapshot = await getDocs(
    collection(databaseRef, firebase.auth().currentUser.uid)
);

to get the current user's documents.

https://firebase.google.com/docs/reference/js/v8/firebase.auth.Auth#currentuser