How to get current userdata from firestore in flutter?

user_11613582 0
Viewed 9995

Im new to flutter and firestore. I´m building a social media app and need to get some userinformation from the current logged in user to the user profilepage. Surch as username, email etc. I have manage to get the userdata up to firestore, but Im struggling to get the current userinformation back to my project.

I've tryed this method, and it does get the userinformation back from firestore, but not the current userinformation unfortuinetly. I guess the plroblem is that Im stuck on the first document in my database on firestore?

StreamBuilder(
  stream:
      Firestore.instance.collection('userData').snapshots(),
  builder: (context, snapshot) {
    if (!snapshot.hasData) {
      return CircularProgressIndicator();
    }

    return Container(
      child: Padding(
        padding: const EdgeInsets.only(top: 75.0),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: <Widget>[
            Text(
              snapshot.data.documents[0]['userName'],
              style: TextStyle(fontSize: 25.0),
            ),
            Padding(
              padding: const EdgeInsets.only(top: 5.0),
              child:
                  Text(snapshot.data.documents[0]['email']),
            ),
          ],
        ),
      ),
    );
}),

I would really appreciate any potential solutions.

Thank you!

google-cloud-firestore flutter
2 Answers
      Future<void> _getUserName() async {
        Firestore.instance
            .collection('Users')
            .document((await FirebaseAuth.instance.currentUser()).uid)
            .get()
            .then((value) {
          setState(() {
            _userName = value.data['UserName'].toString();
          });
        });
      }

Add the _userName to the initstate like this

 void initState() {
    super.initState();
    _getUserName();
  }

and call it like this

  child: Text('Hello $_userName,'),

I hope this will work

user_127865120

If you are using Firebase authentication, then

import 'package:firebase_auth/firebase_auth.dart';

FirebaseUser user = await FirebaseAuth.instance.currentUser();

will get you the current logged in user. After that, you can do

var email = user.email;
var userName = user.displayName;

to get relevant user info.

user_38944550
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