[B4X] Supabase - The Open Source Firebase alternative
Supabase is an open source Firebase alternative. It provides all the backend services you need to build a product. Supabase uses Postgres database with real-time capabilities. Basically, supabase provides an interface to manage postgres database that you can use to create table and insert, edit...
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This is a very simple tutorial on how to use the auth options. A more detailed tutorial is coming soon.
SignUp
Allow your users to sign up and create a new account.
B4X:
Wait For (xSupabase.Auth.SignUp("[email protected]","Test123!")) Complete (NewUser As SupabaseUser)
If NewUser.Error.Success Then
Log("successfully registered with " & NewUser.Email)
Else
Log("Error: " & NewUser.Error.ErrorMessage)
End IfAllow your users to sign up without requiring users to enter an email address, password
It is strongly recommended to enable invisible Captcha or Cloudflare Turnstile to prevent abuse for anonymous sign-ins, you can more read about in the forum thread.
B4X:
Wait For (xSupabase.Auth.LogIn_Anonymously) Complete (AnonymousUser As SupabaseUser)
If AnonymousUser.Error.Success Then
Log("Successfully created an anonymous user")
Else
Log("Error: " & AnonymousUser.Error.ErrorMessage)
End If[B4X] Supabase - Sign In Anonymously
https://www.b4x.com/android/forum/threads/b4x-supabase-the-open-source-firebase-alternative.149855/ Supabase now supports anonymous user login, the B4X library now too. https://supabase.com/blog/anonymous-sign-ins Create and use anonymous users to authenticate with Supabase Enable Anonymous...
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The options parameters are used to store additional information, e.g. user name, birthday, etc. in the user record when registering new users.
B4X:
Dim AdditionalUserMetadata As Map = CreateMap("first_name":"Alexander","age":25)
Wait For (xSupabase.Auth.SignUp("[email protected]","Test123!",AdditionalUserMetadata)) Complete (NewUser As SupabaseUser)This information is then stored in the "raw_user_meta_data" column in the Auth.Users table.
To retrieve this info from a user, you can get the user object:
B4X:
Wait For (xSupabase.Auth.GetUser) Complete (User As SupabaseUser)
Log(User.Metadata.Get("username"))Login with E-Mail and Password
If an account is created, users can login to your app.
B4X:
Wait For (xSupabase.Auth.LogIn_EmailPassword("[email protected]","Test123!!")) Complete (User As SupabaseUser)
If User.Error.Success Then
Log("successfully logged in with " & User.Email)
Else
Log("Error: " & User.Error.ErrorMessage)
End IfUpdate the user with a new email or password. Each key (email, password, and data) is optional
B4X:
Wait For (xSupabase.Auth.UpdateUser("[email protected]","")) Complete (Result As SupabaseError)
If Result.Success Then
Log("User data successfully changed")
Else
Log("Error: " & Result.ErrorMessage)
End If
B4X:
wait for (xSupabase.Auth.PasswordRecovery("[email protected]")) Complete (Response As SupabaseError)
If Response.Success Then
Log("Recovery email sent successfully")
Else
Log("Error: " & Response.ErrorMessage)
End IfUser tokens are removed from the device
After calling log out, all interactions using the Supabase B4X client will be "anonymous".
B4X:
Wait For (xSupabase.Auth.Logout) Complete (Result As SupabaseError)
If Result.Success Then
Log("User successfully logged out")
Else
Log("Error: " & Result.ErrorMessage)
End IfDon't forget to Initialize the event:
B4X:
xSupabase.InitializeEvents(Me,"Supabase")
B4X:
Private Sub Supabase_AuthStateChange(StateType As String)
Select StateType
Case "passwordRecovery"
Log("Reset password was requested")
Case "signedIn"
Log("The user has logged in")
Case "signedOut"
Log("The user has logged out")
Case "tokenRefreshed"
Log("The Auth Token was updated")
Case "userUpdated"
Log("The email address and or password has been changed")
Case Else
Log("Unknown State Type")
End Select
End Sub
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