feat: Upgrade anonymous users to regular users automatically (#100)

Author: dshukertjr

lib/src/components/supa_email_auth.dart

@@ -244,12 +244,27 @@ class _SupaEmailAuthState extends State<SupaEmailAuth> {
                       );
                       widget.onSignInComplete.call(response);
                     } else {
-                      final response = await supabase.auth.signUp(
-                        email: _emailController.text.trim(),
-                        password: _passwordController.text.trim(),
-                        emailRedirectTo: widget.redirectTo,
-                        data: _resolveData(),
-                      );
+                      final user = supabase.auth.currentUser;
+                      late final AuthResponse response;
+                      if (user?.isAnonymous == true) {
+                        await supabase.auth.updateUser(
+                          UserAttributes(
+                            email: _emailController.text.trim(),
+                            password: _passwordController.text.trim(),
+                            data: _resolveData(),
+                          ),
+                          emailRedirectTo: widget.redirectTo,
+                        );
+                        final newSession = supabase.auth.currentSession;
+                        response = AuthResponse(session: newSession);
+                      } else {
+                        response = await supabase.auth.signUp(
+                          email: _emailController.text.trim(),
+                          password: _passwordController.text.trim(),
+                          emailRedirectTo: widget.redirectTo,
+                          data: _resolveData(),
+                        );
+                      }
                       widget.onSignUpComplete.call(response);
                     }
                   } on AuthException catch (error) {

lib/src/components/supa_phone_auth.dart

@@ -107,8 +107,21 @@ class _SupaPhoneAuthState extends State<SupaPhoneAuth> {
                     );
                     widget.onSuccess(response);
                   } else {
-                    final response = await supabase.auth
-                        .signUp(phone: _phone.text, password: _password.text);
+                    late final AuthResponse response;
+                    final user = supabase.auth.currentUser;
+                    if (user?.isAnonymous == true) {
+                      await supabase.auth.updateUser(
+                        UserAttributes(
+                          phone: _phone.text,
+                          password: _password.text,
+                        ),
+                      );
+                    } else {
+                      response = await supabase.auth.signUp(
+                        phone: _phone.text,
+                        password: _password.text,
+                      );
+                    }
                     if (!mounted) return;
                     widget.onSuccess(response);
                   }

lib/src/components/supa_socials_auth.dart

@@ -338,6 +338,17 @@ class _SupaSocialsAuthState extends State<SupaSocialsAuth> {
               }
             }
 
+            final user = supabase.auth.currentUser;
+            if (user?.isAnonymous == true) {
+              await supabase.auth.linkIdentity(
+                socialProvider,
+                redirectTo: widget.redirectUrl,
+                scopes: widget.scopes?[socialProvider],
+                queryParams: widget.queryParams?[socialProvider],
+              );
+              return;
+            }
+
             await supabase.auth.signInWithOAuth(
               socialProvider,
               redirectTo: widget.redirectUrl,

pubspec.yaml

@@ -11,7 +11,7 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-  supabase_flutter: ^2.3.4
+  supabase_flutter: ^2.5.6
   email_validator: ^2.0.1
   font_awesome_flutter: ^10.6.0
   google_sign_in: ^6.2.1