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ViewsFirebase - How can i get data from reference?
I have a firebase firestore with some reference datatype.
It looks like this:
I Hope, this is the correct way.
Now when i get my user from firebase, i have this reference object with the id of it. But if i call my function to get the doc, i get an error message:
First my function and how i call it:
export const getClubById = async (id: string) => {
const doc = collection(db, 'clubs', id)
return doc
}
const userData = dbUser.data()
const club = await getClubById(userData.selectedClub.id)
console.log('club', club)
And here the error message:
Uncaught (in promise) FirebaseError: Invalid collection reference. Collection references must have an odd number of segments, but clubs/vA7R94pX3bpHDsYIr6Ge has 2.
·
Juan Pablo Isaza
1 answers
Answer question0
If you have the DocumentReference already then you can use getDoc() function to retrieve the document from Firestore as shown below:
import { getDoc, DocumentReference } from "firebase/firestore";
export const getClubById = async (clubDocRef: DocumentReference) => {
const clubSnapshot = await getDoc(clubDocRef);
return clubSnapshot.data();
}
// Pass the reference itself to the function instead of doc ID
const club = await getClubById(userData.selectedClub)
For the error in the question, to create a DocumentReference, if you have the document ID then you should doc() function instead of collection() that is used to create a CollectionReferencce as shown below:
const docRef = doc(db, 'clubs', clubID);
Also checkout: Firestore: What's the pattern for adding new data in Web v9?
·
Juan Pablo Isaza
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