B4J Library [B4X] Firebase Auth REST API

Not all API commands I have implemented and tested, if you have problems, then ask in the comments or in a new thread.

With this class you can register and log in your users via email and password. And a lot more...

Setup:
  1. put your API Key in the Class_Globals
    1. Private const API_KEY As String = "AIzaSyDPXXXXXX"
FirebaseAuthREST
Author: Alexander Stolte
Version: 1.1
  • FirebaseAuthREST
    • Functions:
      • changeEmail (idToken As String, email As String, returnSecureToken As Boolean) As ResumableSub
        Change email

        Firebase Auth REST API

        firebase.google.com firebase.google.com
        idToken - A Firebase Auth ID token for the user.
        email - The user's new email.
        returnSecureToken - Whether or not to return an ID and refresh token.
      • changePassword (idToken As String, password As String, returnSecureToken As Boolean) As ResumableSub
        Change password

        Firebase Auth REST API

        firebase.google.com firebase.google.com
        idToken - A Firebase Auth ID token for the user.
        password - User's new password.
        returnSecureToken - Whether or not to return an ID and refresh token.
      • Class_Globals As String
      • confirmEmailVerification (oobCode As String) As ResumableSub
        Confirm email verification

        Firebase Auth REST API

        firebase.google.com firebase.google.com
        oobCode - The action code sent to user's email for email verification.
      • confirmPasswordReset (oobCode As String, newPassword As String) As ResumableSub
        Confirm password reset

        Firebase Auth REST API

        firebase.google.com firebase.google.com
        oobCode - The email action code sent to the user's email for resetting the password.
        newPassword - The user's new password.
      • createAuthUri (identifier As String, continueUri As String) As ResumableSub
        Fetch providers for email

        Firebase Auth REST API

        firebase.google.com firebase.google.com
        identifier - User's email address
        continueUri - The URI to which the IDP redirects the user back. For this use case, this is just the current URL.
      • deleteAccount (idToken As String) As ResumableSub
        Delete account

        Firebase Auth REST API

        firebase.google.com firebase.google.com
        idToken - The Firebase ID token of the user to delete.
      • getErrorCode (root As Map) As Int
        code: 400
      • getErrorMap (root As Map) As Map
        reason: invalid
        domain: global
        message: EMAIL_NOT_FOUND
      • getErrorMessage (root As Map) As String
        message: EMAIL_NOT_FOUND
      • Initialize As String
        Initializes the object. You can add parameters to this method if needed.
      • IsInitialized As Boolean
        Tests whether the object has been initialized.
      • sendEmailVerification (requestType As String, idToken As String) As ResumableSub
        Send email verification

        Firebase Auth REST API

        firebase.google.com firebase.google.com
        requestType - The type of confirmation code to send. Should always be "VERIFY_EMAIL".
        idToken - The Firebase ID token of the user to verify.
      • sendPasswordResetEmail (requestType As String, email As String) As ResumableSub
        Send password reset email

        Firebase Auth REST API

        firebase.google.com firebase.google.com
        requestType - The kind of OOB code to return. Should be "PASSWORD_RESET" for password reset.
        email - User's email address.
      • signInAnonymously (returnSecureToken As Boolean) As ResumableSub
        Sign in anonymously

        Firebase Auth REST API

        firebase.google.com firebase.google.com
        returnSecureToken - Whether or not to return an ID and refresh token. Should always be true.
      • signInEmailPW (email As String, password As String, returnSecureToken As Boolean) As ResumableSub
        Sign in with email / password

        Firebase Auth REST API

        firebase.google.com firebase.google.com
        email - The email the user is signing in with.
        password - The password for the account.
        returnSecureToken - Whether or not to return an ID and refresh token. Should always be true.
      • signUpEmailPW (email As String, password As String, returnSecureToken As Boolean) As ResumableSub
        Sign up with email / password

        Firebase Auth REST API

        firebase.google.com firebase.google.com
        email - The email for the user to create.
        password - The password for the user to create.
        returnSecureToken - Whether or not to return an ID and refresh token. Should always be true.
      • verifyPasswordResetCode (oobCode As String) As ResumableSub
        Verify password reset code

        Firebase Auth REST API

        firebase.google.com firebase.google.com
        oobCode - The email action code sent to the user's email for resetting the password.

You can get the map keys in the code or on the online documentation from Firebase

Firebase Auth REST API

firebase.google.com firebase.google.com
Usage Example: 
Wait For (fa_rest.signInEmailPW("myemail@lol.de","MySecurePassword123!",True)) complete (root As Map)
 
    If root.Get("success") = True Then  
        For Each k As String In root.Keys
            Log("Key: " & k & CRLF & "Value: " & root.Get(k))
        Next  
    Else
        Log("ErrorCode: " & fa_rest.getErrorCode(root))
        Log("ErrorMessage: " & fa_rest.getErrorMessage(root))
        Log("Reason: " & fa_rest.getErrorMap(root).Get("reason"))
        Log("Domain: " & fa_rest.getErrorMap(root).Get("domain"))
        Log("Message: " & fa_rest.getErrorMap(root).Get("message"))
    End If
Success Result: 
Key: expiresIn
Value: 3600
Key: kind
Value: identitytoolkit#VerifyPasswordResponse
Key: displayName
Value:
Key: idToken
Value: eyJhbGciOiJSUzI1NiIsImtpZCI6Ijc2MjNlMTBhMDQ1MTQwZjFjZmQ0YmUwNDY2Y2Y4MDM1MmI1OWY4MWUiLCJ0eXAiOiJKV1QifQ.eyJpc3MiOiJodHRwczovL3NlY3VyZXRva2VuLmdvb2dsZS5jb20vZmlyLWF1dGhyZXN0IiwiYXVkIjoiZmlyLWF1dGhyZXN0IiwiYXV0aF90aW1lIjoxNTk0MjAxMzMxLCJ1c2VyX2lkIjoiSU90TjVqVmN1YWhjQWt2S0ExZWM0eDdPU0hHMiIsInN1YiI6IklPdE41alZjdWFoY0FrdktBMWVjNHg3T1NIRzIiLCJpYXQiOjE1OTQyMDEzMzEsImV4cCI6MTU5NDIwNDkzMSwiZW1haWwiOiJhbGV4Ljk4LnN0b2x0ZUBnbXguZGUiLCJlbWFpbF92ZXJpZmllZCI6dHJ1ZSwiZmlyZWJhc2UiOnsiaWRlbnRpdGllcyI6eyJlbWFpbCI6WyJhbGV4Ljk4LnN0b2x0ZUBnbXguZGUiXX0sInNpZ25faW5fcHJvdmlkZXIiOiJwYXNzd29yZCJ9fQ.PkoZaKyMxbz7U6s2fW2DQisGTgs5rbPJiqcJbVipopda1vi25iYGOyq0jDhaHdTFX4If_umKEsiRzWpncafKs7Kev1_aqDV-XAAHbEoO_zOyomsopRYIjzzL2NoUuSN-667ArzJURgA0VjB0s8GYN0hDeWqbISvq3Kgdu3569MQHDLd01BcFKc2-9Tv6ZoFGqsWTRWyZZmtu7PDga97vmsiQ01eiogmXY7giGbAMs4q9XdcP3vAzlYi8H5Tr61ywsKFhoPhhk6w4dH1o_RrErS5WiPKl-325QA-qZ99VBfMdgLoIyfCj898UbXP7cpq2E0vJrqMmdaALJsWfNhFzDg
Key: registered
Value: true
Key: localId
Value: IOtN5jVcuahcAkvKA1ec4x7OSHG2
Key: email
Value: myemail@lol.de
Key: refreshToken
Value: AE0u-NcTYspSYujdVRs5Bx3eXMoVDeDRUNX3NGUd9xWfq-ty8r7NDeDvEhX14GGWeoXdWpzwT2oTkBGU5QCNdqhcipb_wCbDgIXX9IZ6lyatl_tCEfhupu5zYD3hnYDVetT2diHrxUZfwqUR-ZJBHUlDtA_3VkAAXNUdXhychL2pY7BELgawWOkrwDJbndMrdfGuyMDYDJ1mHTmUDLabouTDykvtmVo7rg
Key: success
Value: true
Error Result: 
ErrorCode: 400
ErrorMessage: EMAIL_NOT_FOUND
Reason: invalid
Domain: global
Message: EMAIL_NOT_FOUND
Changelog
  • 1.00
    • Release
  • 1.01
    • get Errors check if item in map exists
    • Add refreshToken - Exchange a refresh token for an ID token
  • 1.02
Have Fun :)
 

Attachments

  • B4J Example.zip
    3.4 KB · Views: 652
  • FirebaseAuthREST.bas
    17.6 KB · Views: 111
Last edited:
Click to expand...
Alexander Stolte

Alexander Stolte

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Longtime User
Update
  • 1.01
    • get Errors check if item in map exists
    • Add refreshToken - Exchange a refresh token for an ID token

Firebase Auth REST API

firebase.google.com firebase.google.com
Usage: 
Wait For (far.refreshToken("refresh_token",RefreshToken)) complete (root As Map)
Result: 
expires_in - The number of seconds in which the ID token expires.
token_type - The type of the refresh token, always "Bearer".
refresh_token - The Firebase Auth refresh token provided in the request or a new refresh token.
id_token - A Firebase Auth ID token.
user_id    - The uid corresponding to the provided ID token.
project_id - Your Firebase project ID.
 
Schakalaka

Schakalaka

Active Member
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Longtime User
Hello. is possible add facebook and google auth in this library?
i' d like to use it in b4j app and save the returned json, in a mysql database with php&co.
 
Alexander Stolte

Alexander Stolte

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Schakalaka said:
Hello. is possible add facebook and google auth in this library?
i' d like to use it in b4j app
Click to expand...
I don't know if is possible with the "SignInWithOAuth".

Firebase Auth REST API

firebase.google.com firebase.google.com
But for these needs there are already B4A and B4I libraries.
 
Alexander Stolte

Alexander Stolte

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ilan said:
hi, where can i download the library FirebaseAuthREST? would like to test it.
Click to expand...
1624620157648.png
 
Alexander Stolte

Alexander Stolte

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Longtime User
i think you mean this:

[B4X] Firebase Auth REST Helper - manage the access tokens

The advantage of the rest API of Firebase auth is that it can be used cross platform. The downside is, we have to take care of the user access tokens ourselves. That's why I wrote this class, it works with the "FirebaseAuthREST" class. The class was inspired by @Erel oauth2 class, adapted to my...
www.b4x.com www.b4x.com
 
ilan

ilan

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Licensed User
Longtime User
Alexander Stolte said:
i think you mean this:

[B4X] Firebase Auth REST Helper - manage the access tokens

The advantage of the rest API of Firebase auth is that it can be used cross platform. The downside is, we have to take care of the user access tokens ourselves. That's why I wrote this class, it works with the "FirebaseAuthREST" class. The class was inspired by @Erel oauth2 class, adapted to my...
www.b4x.com www.b4x.com
Click to expand...

ohh, ok so there is no lib i need to add the class to the project :)
thankx!
 
ilan

ilan

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i am playing around with your class and it looks amazing. i tried to register a new account and login with it and works great. Thanks a lot for your class!!! ?
 
Alexander Stolte

Alexander Stolte

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yiankos1 said:
Are there any security issues of this exposed API key in app?
Click to expand...
No key in your app is safe. That's why Firebase has security roles, so that only logged in users can do anything and then only what they are authorized to do.
 
yiankos1

yiankos1

Well-Known Member
Licensed User
Longtime User
Alexander Stolte said:
No key in your app is safe. That's why Firebase has security roles, so that only logged in users can do anything and then only what they are authorized to do.
Click to expand...
Thank you for your answer.

With this method confirmEmailVerification you get as a response, beneath the others, emailVerified property as boolean. I want to check if email is verified before a user login, but i can't find a way to get oobCode. oobCode sent as a hyperlink in email in order to click and confirm.
 
Alexander Stolte

Alexander Stolte

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Longtime User
Update

Firebase Auth - emailVerified

Good Morning, im using the B4J Library [B4X] Firebase Auth REST API from @Alexander Stolte. Ive implemented it into my jServer backend for my App login process. When the user registers, I start signUpEmailPW and if that works, then immediately sendEmailVerification. The email also arrives...
www.b4x.com www.b4x.com
 
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