Firebase RTDB - Get document ID?

Question

how can i retrieve document IDs in a useEffect using firebase realtime database?

This works great but however i need every single document id aswell.

Answer 1

This is how you can get keys from array in RTDB:

onValue(dbRef, (snapshot) => {
  snapshot.forEach((childSnapshot) => {
    const childKey = childSnapshot.key;
    const childData = childSnapshot.val();
    // ...
  });
}, {
  onlyOnce: true
});

You need to get to childSnapshots using forEach or for loop.