Back
Google OAuth2 Login Gets Stuck in Redirect Loop on Flutter
I'm facing an issue with the Google OAuth2 login flow on my Flutter Android app using the Appwrite SDK. After a successful sign-in with Google, the browser enters a redirect loop instead of returning to my app. The login flow previously worked as expected, but has recently started failing.
TypeScript
For use with requests from a web server
URIs 1
https://fra.cloud.appwrite.io/v1/account/sessions/oauth2/callback/google/[PROJECT_ID]
URIs 2
https://cloud.appwrite.io/v1/account/sessions/oauth2/callback/google
URIs 3
https://cloud.appwrite.io/v1/account/sessions/oauth2/callback/google/[PROJECT_ID]
and in my code
TypeScript
Future<void> signInWithOAuth(OAuthProvider provider) async {
try {
print("🔑 Starting OAuth sign-in with provider: $provider");
// ✅ Check existing session
try {
final currentUser = await _account.get();
print("⚠️ User already logged in. Logging out first...");
await signOut();
} catch (_) {
// no active session, safe to continue
}
await _account.createOAuth2Session(provider: provider);
print("✅ OAuth session created successfully. Checking auth status...");
await checkAuthStatus();
} on AppwriteException catch (e) {
print("❌ AppwriteException during OAuth: ${e.message}, code: ${e.code}");
if (e.response != null) {
print("📡 Full error response: ${e.response}");
}
Get.snackbar('Error', e.message ?? 'OAuth sign-in failed');
} catch (e) {
print("⚠️ Unexpected error during OAuth: $e");
Get.snackbar('Error', 'An unexpected error occurred.');
}
}
Now when i press login button in my app it opens a browser with google login page. then i select my account and it loads and i see the appwrite loading page and then back to google login page inside the browser. meanwhile my terminal
OAuth session created successfully. Checking auth status... and if i manually close the browser i'm logged in.
TL;DR
Developers are facing a redirect loop issue with Google OAuth2 login on their Flutter app using the Appwrite SDK. After successful sign-in, the browser gets stuck in a loop instead of returning to the app. The issue seems to be related to the redirect URIs setup. The provided code snippet suggests that the OAuth session is successfully created, but the app still encounters the loop. Manually closing the browser allows the login process to complete.
Solution: The redirect URIs in the Google Cloud console need to be set up correctly to avoid the loop. Double-check the URIs in the console and ensure they match the ones in the code