CODEWITHSUNDEEP
firebaseflutter
sabri bargougui
sabri bargougui

Reputation: 35

How To get data from firestore of current user in flutter?

I want to get data of authenticated user from firestore and put them in variables in flutter, I do not need to display them on the screen I just want to store them in variables : I created file data.dart It has only variables . this is the file contains the variables(data.dart) (I dont have statefull widget or stateless widget) : Data.dart

and this is the file where I called The variables(firbaseapi.dart):

firebaseapi.dart

String myId = "AfhUxYFIaHTvSOyOPlh14essssq9pJpW2"; // I want to get user id here
String myUsername = 'Sabri'; // I want to get username here
String myUrlAvatar = 'http//kdkskdskd'; // I want to get  avatar URL here

I tried this but I got an error : A value of type 'Future' can't be assigned to a variable of type 'DocumentSnapshot'. Try changing the type of the variable, or casting the right-hand type to 'DocumentSnapshot'

User user = FirebaseAuth.instance.currentUser;
DocumentSnapshot snap = 
    FirebaseFirestore.instance.collection('Users').doc(user.uid).get();//error appear here     
     String myId = snap['uid'];
     String myUsername = snap['name'];
     String myUrlAvatar = snap['avatarurl'];

Upvotes: 0

Views: 5332

Answers (2)

Majid Ali
Majid Ali

Reputation: 495

working example!

imports

import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:firebase_auth/firebase_auth.dart';

Global

final FirebaseAuth _firebaseAuth = FirebaseAuth.instance;
String myId = '';
String myUsername = '';
String myUrlAvatar = '';

Method to get data from firestore.

  void _getdata() async {
 User user = _firebaseAuth.currentUser;
  FirebaseFirestore.instance
    .collection('users')
    .doc(user.uid)
    .snapshots()
    .listen((userData) {
 
    setState(() {
      myId = userData.data()['uid'];
        myUsername = userData.data()['name'];
       myUrlAvatar = userData.data()['avatarurl'];
      
    });
  }

Get data when screen starts in a stateful widget you can also call method on button press.

  @override
  void initState() {
super.initState();
_getdata();
 }

Upvotes: 1

Adithaz
Adithaz

Reputation: 419

DocumentSnapshot snap = FirebaseFirestore.instance.collection('your collection').get();
String myId = snap['myId'];
String myUsername = snap['myUsername'];
String myUrlAvatar = snap['myUrlAvatar'];

Update:

User user = FirebaseAuth.instance.currentUser;
DocumentSnapshot snap = FirebaseFirestore.instance.collection('Users').doc(user.uid).get();
String myId = snap['uid'];
String myUsername = snap['name'];
String myUrlAvatar = snap['avatarurl'];

Upvotes: 0

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