How can I get the uid generated by Firebase?

[EduardoIbarra]

Version info

Angular: 4.4.5

Firebase:

AngularFire: angularfire2

This is not an issue, I just want to know how do I get to these kind of uid generated by Firebase? I'm trying to get a document, but since I don't have its id, I cannot reach it, also, I cannot query it, and if i use a collection to be able to query it, it just won't let me update or delete the record.

** Screenshots **

[bob-lee]

https://stackblitz.com/edit/angular-iqq9xo
Above demo would show you how to.. Better ask this type of question in StackOverflow

[EduardoIbarra]

Thanks! But my elements' .$key gives me undefined. Am I doing this right? This is the code on my service to retrieve all records:

getGames() {
    return this.afDB.collection('games');
}

And this is my code on my component:

gamesService.getGames()
            .valueChanges().subscribe((games) => {
            this.games = games;
        }, (error) => {
            console.log(error);
        });

This is how I access them on my html:
<tr *ngFor="let game of games">

[blackbear003]

const id = this.afs.createId();
this.xDocument = this.afs.doc(uid + '/' + id);
x.key = id;
return this.xDocument.set(x)

[EduardoIbarra]

Thank you both! My code ended up like this:

import { Injectable } from '@angular/core';
import {AngularFirestore, AngularFirestoreCollection} from 'angularfire2/firestore';
import {Observable} from 'rxjs/Observable';

@Injectable()
export class GamesFirebaseService {
    private itemsCollection: AngularFirestoreCollection<any>;
    items: Observable<any[]>;
    countItems = 0;
    constructor(public afs: AngularFirestore) {
        this.itemsCollection = this.afs.collection<any>('games');
        this.items = this.itemsCollection.snapshotChanges()
            .map(actions => {
                this.countItems = actions.length;
                return actions.map(action => ({ $key: action.payload.doc.id, ...action.payload.doc.data() }));
            });
    }
    public store = (game) => {
        return this.itemsCollection.add(game);
    }
    public update(game) {
        return this.itemsCollection.doc(game.$key).update(game);
    }
}

[cbstodd]

Thank you for posting your code @EduardoIbarra. Helped big time.

[anuj9196]

I'm getting this error Unresolved map().

[hanyska]

I'm getting this error Unresolved map().

use .pipe( map(...))

[TusharKalyankar]

You can relate to the below example and generate your code

Here "_email","_password","_city","_phone" are variables for

onSaved: (value) => _email = value

taken from TextFormField() function

Code:

String userId = await widget.auth.createUserWithEmailAndPassword(_email, _password);

print('Registered user: $userId');

final new_user = await FirebaseFirestore.instance.collection('users').doc(userId).
set({"UserUID":'$userId',"Email":_email,"Password":_password,"City":_city,"Phone
Number":_phone});