B4A Library FirebaseAuth - Authenticate your users

Erel · Jun 13, 2016

This library requires B4A v6+.

It allows the users to sign in to your app with their Google account (more identity providers will be added in the future).

Like all Firebase services it is quite simple to integrate this service in your app.

1. Follow this tutorial and make sure to add the Firebase Auth manifest snippet: https://www.b4x.com/android/forum/threads/integrating-firebase-services.67692/

2. This service requires that the signing key SHA1 signature is set in the Firebase project settings:

You can find this value under Tools - Private Sign Key, in the signature field:

Initialize the FirebaseAuth object and call SignInWithGoogle to sign in. Note that the user will be signed in automatically when the program restarts.

B4X:

Sub Process_Globals
   Private auth As FirebaseAuth
End Sub

Sub Globals
   Private lblName As Label
End Sub

Sub Activity_Create(FirstTime As Boolean)
   If FirstTime Then
     auth.Initialize("auth")
   End If
   Activity.LoadLayout("1")
   If auth.CurrentUser.IsInitialized Then Auth_SignedIn(auth.CurrentUser)
End Sub

Sub btnSignIn_Click
   auth.SignInWithGoogle
End Sub

Sub btnSignOut_Click
   auth.SignOutFromGoogle
   lblName.Text = "Goodbye!"
End Sub

Sub Auth_SignedIn (User As FirebaseUser)
   Log("SignedIn: " & User.DisplayName)
   lblName.Text = "Hello: " & User.DisplayName
End Sub

Next:
- Combine Google and Facebook: https://www.b4x.com/android/forum/t...seauth-to-support-facebook.67954/#post-430482
- Server verification of signed in users: https://www.b4x.com/android/forum/t...end-authentication-for-signed-in-users.68672/

FirebaseAuth is an internal library now. It is preinstalled with the IDE.

V2.01 is attached. It adds a SignError (Error As Exception) event.

jazzzzzzz · Jul 3, 2016

I have initialised in Starter Service_Create, now when I log out and login the success event callback came more than 1 time for a single login click..

Erel · Jul 4, 2016

There are cases where the SignedIn event is raised multiple times. Your program will need to handle it.

jazzzzzzz · Jul 4, 2016

Ok ,I have manged it with flags

Erel · Jul 5, 2016

v1.02 was uploaded to the first post. It adds a GetUserTokenId method. This method retrieves a temporary token id that can be used to verify the user on your backend server: https://www.b4x.com/android/forum/t...ckend-verification-for-signed-in-users.68672/

B4X:

Sub Auth_SignedIn (User As FirebaseUser)
   Log("SignedIn: " & User.DisplayName)
   CallSub(Main, "SetState")
   Log(User.Uid)
   Log(User.Email)
   auth.GetUserTokenId(User, False)
End Sub

Sub Auth_TokenAvailable (User As FirebaseUser, Success As Boolean, TokenId As String)
   Log(TokenId)
   'send tokenid to server
End Sub

pedrocam · Jul 5, 2016

johndb said:
Will the standard email firebase authentication with email confirmation be supported in addition to Google and Facebook?

Thanks,

John

I am also wishing for this. Thanks!

Daniel-White · Jul 29, 2016

Hi folks.

Firebase Auth, has the service to auth using Email/Password (simple without Oauth). Can I use this firebase lib of B4A not for use Oauth , I would like to use the simple Email and password to give access to firebase Storage.

or?? another way to accomplish my idea.

Can I use this lib, and always give the same credentials to access the firebase storage, using Oauth?, I know it is bad idea put passwords etc in hardcode. the idea is allow my APP to send anonymous information to File server (and don't bother the end user to ingress credentials), I would like the APP upload files without need ask credentials to end user , anyway, it will be anonymous information in the firebase storage.

Thanks youuuuuuuuuuuuuuu

awakenblueheart · Jul 31, 2016

I got "connection failed." on the log. Help me to configure pleazzz...

awakenblueheart · Jul 31, 2016

awakenblueheart said:
I got "connection failed." on the log. Help me to configure pleazzz...

Success!! I think it takes a while for the firebase project to got connected.

Erel · Jul 31, 2016

Daniel-White said:
Firebase Auth, has the service to auth using Email/Password (simple without Oauth). Can I use this firebase lib of B4A not for use Oauth , I would like to use the simple Email and password to give access to firebase Storage.

B4A FirebaseAuth currently supports two authentication methods: Google and Facebook. There is no support for email / password authentication.

Please start a new thread for the question about FirebaseStorage.

islander · Sep 1, 2016

Is there any chance or plan on supporting email/password authentication sooner or later though?

I would love to have it too.

Erel said:
B4A FirebaseAuth currently supports two authentication methods: Google and Facebook. There is no support for email / password authentication.

Please start a new thread for the question about FirebaseStorage.

Erel · Sep 1, 2016

I don't know when email / password authentication will be available.

Deleted member 103 · Sep 6, 2016

You can find this value under Tools - Private Sign Key, in the signature field:

but I can not find "sha1", I only have this view.

DonManfred · Sep 6, 2016

You can resize the window. make it higher.....

Deleted member 103 · Sep 6, 2016

DonManfred said:
You can resize the window. make it higher.....

Danke Manfred!
Auf diese idee wäre ich nicht gekommen.
Ich habe es aber mit diese Hilfe gefunden.

Thanks Manfred!
In this idea I had not come.
But I have it with this help found

jtare · Sep 17, 2016

Erel, do I need my own server to authenticate users? It is possible to create some type of list in the firebase console to only allow user that I manually input?

Erel · Sep 18, 2016

jtare said:
Erel, do I need my own server to authenticate users?

You don't need but you can.

jtare said:
It is possible to create some type of list in the firebase console to only allow user that I manually input?

See this: https://www.b4x.com/android/forum/t...rification-for-signed-in-users.68672/#content

The user will sign in and it will be sent to your server. You can store a list on your server with the specific users you allow.

fredo · Oct 9, 2016

Edit: Now integrated by @DonManfred in the Auth lib. See here

_____

Erel said:
...(more identity providers will be added in the future).

Will the new Sign-In provider Firebase Anonymous Authentication be available in the near future?

As introduced by the Firebase Team here it comes with many advantages for the developer and user:

A user can be logged in programmaticaly without asking him for credentials
The user will be identified for all Firebase services by means of an universal identifier (uid)
Later this uid can be merged with any other Login method

johndb · Oct 9, 2016

fredo said:
Will the new Sign-In provider Firebase Anonymous Authentication be available in the near future?

View attachment 48740

As introduced by the Firebase Team here it comes with many advantages for the developer and user:

A user can be logged in programmaticaly without asking for credentials

The user will be identified for all Firebase services by means of a universal identifier (uid)

Later this uid can be merged with any other Login method

View attachment 48741

+1 on adding this feature to the B4A Library. This would be extremely useful for my current apps in development.
Additionally, any progress on when email / password authentication will be available?

Thank you,

John

DonManfred · Oct 9, 2016

johndb said:
+1 on adding this feature to the B4A Library

Erel gave me the source of the lib so i can add them ;-)
I m working on it...

johndb said:
Additionally, any progress on when email / password authentication will be available?

Will check to add this too

johndb · Oct 9, 2016

DonManfred said:
Erel gave me the source of the lib so i can add them ;-)
I m working on it...

Will check to add this too

Thank you @DonManfred. This is very much appreciated

B4A Library FirebaseAuth - Authenticate your users

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