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Connecting angular to firebase using angularFire2 version 5.0


By : user12225
Date : October 16 2020, 03:08 PM
around this issue I seem to be having an error I cant find an answer to. I have searched through readme files and angularFire docs all day. I am getting this error in the console , I was trying to import from angularFire instead of angularfire.
code :
import { AngularFireModule } from 'angularFire2';
import { AngularFireAuthModule } from 'angularFire2/auth';
import { AngularFireModule } from 'angularfire2';
import { AngularFireAuthModule } from 'angularfire2/auth';


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Angular 4 with Angularfire2 and Firebase 4 Syntax Migration issues


By : alex
Date : March 29 2020, 07:55 AM
will be helpful for those in need Maybe this code will help you. Use firebase SDK for authentication instead of AngularFire. In your LoginComponent import firebase:
code :
import firebase from 'firebase';
firebase.auth().onAuthStateChanged(
      (user) => {
        if (!user) {
          console.log("NOT LOGGED IN");
        } else {
          console.log("Logged In as: ", user);
        }
      });

How to retrieve data from Firebase to pass into an array in angularfire2/version-5


By : HarOld Jan Cuison
Date : March 29 2020, 07:55 AM
Hope that helps angularfire2 uses Observables by default. It's beneficial if you read up a bit on rxjs library.
code :
db.list('/percentage')
    .valueChanges()
    .subscribe(res => {
        console.log(res)//should give you the array of percentage. 
        this.labels = res;
    })
db.list('/percentage')
    .valueChanges()
    .map(res=>{
        // do some calculations here if you want to
        return res.map(eachlLabel=> eachlLabel + " Hello World")
    })
    .subscribe(res => {
        console.log(res)//should give you the array of percentage. 
        this.labels = res;
    })
db.list('/percentage')
    .valueChanges()
    .subscribe(res => {
        console.log(res)//should give you the array of percentage.
        //do your post processing to your res here.
        res = res.map(x=> x+ " Hello World");
        this.labels = res;
    })

How do I get data using firebase with angularfire2 version 5?


By : Pablo Hermosillo
Date : March 29 2020, 07:55 AM
will be helpful for those in need Try using this.db.list('/chats').valueChanges();.
I put return types when i can to help detect errors in compilation, it would help to put a return type in your service.
code :
getAll(): Observable<Chat[]> {
    return this.db.list<Chat>('/chats').valueChanges();
}

Increment a value inside Firebase document using AngularFire2 @angular/fire V5


By : aptoon
Date : March 29 2020, 07:55 AM
I wish this helpful for you I have a document in Firebase with a value that I want to increment but I don't see anything in the documentation for Angularfire2 on how to do this. , Give this a try:
code :
this.afs.doc(`choices/${choice.key}`)
  .update({
    votes: ++choice.votes
  });

Is it possible to use Firebase without AngularFire2 in Angular 2+?


By : Jonathan Carroll
Date : March 29 2020, 07:55 AM
it should still fix some issue If you don't want to use the AngularFire2 binding library, you have two options:
Use the JavaScript SDK. The AngularFire2 library is built on top of this SDK, so anything AngularFire can do, you can do on the SDK too. Use the REST API, which requires no SDK whatsoever. The REST API is usable from any platform that can make HTTP calls, which includes any web browser in which Angular 2 will run.
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