Cognito authentication with Google: no redirection to linux app

Romain-Guillot commented 3 months ago

Description

When I set up Cognito authentication and run the application on Linux, the redirection does not redirect to the application when logging in with an external provider (Google): nothing happens, just a page with "Not Found"

(Note that it works as expected when running in web mode).

here the results from the repo step for running on linux :

open the default web brower (https://accounts.google.com/v3/signin/identifier?...)

when the Google login succeed, here the redirect url: http://localhost:3084/?code=xx-xx-xx-xx-xx&state=xx-xx

no redirection, the webpage display "Not found" (the request returns 404)

On the application, the button "Sign In with Google" does nothing

Closing the chrome tab/chrome app change nothing

No debug log

I provided a minimal example with the demo application from the doc (Gen2) Flutter / Get Started / Quickstart.

The documentation mentions "No specific platform configuration is required." Did I miss a configuration step?

OS: Linux Mint 21.2 5.15.0-79-generic
Browsers tested: Opera 101.0.4843.58 / Chrome 116.0.5845.96

Packages:

amplify_flutter: ^2.3.0
amplify_auth_cognito: ^2.3.0
amplify_authenticator: ^2.1.1

Steps to Reproduce

Repro steps demo

Steps:

flutter create amplify_linux_demo
cd amplify_linux_demo
npm create amplify@latest -y
flutter pub add amplify_flutter
flutter pub add amplify_auth_cognito
flutter pub add amplify_authenticator
remplace main.dart by https://docs.amplify.aws/flutter/start/quickstart/
rm -r amplify/data amplify/auth
replace amplify/backend.ts with the below snippet
npx ampx sandbox --outputs-format dart --outputs-out-dir lib
run:
- web: flutter run -d chrome --web-port 3084
  - result: OK
- linux: flutter run -d linux
  - result: KO
  - open the default web brower (https://accounts.google.com/v3/signin/identifier?...)
  - when the Google login succeed, here the redirect url: http://localhost:3084/?code=xx-xx-xx-xx-xx&state=xx-xx
  - no redirection, the webpage display "Not found" (the request returns 404)
  - On the application, the button "Sign In with Google" does nothing
  - Closing the chrome tab/chrome app change nothing
  - No debug log

Screenshots

No response

Platforms

[ ] iOS
[ ] Android
[ ] Web
[ ] macOS
[ ] Windows
[X] Linux

Flutter Version

3.22.3

Amplify Flutter Version

2.3.0

Deployment Method

Amplify CLI

Schema

No response

Equartey commented 2 months ago

Hi @Romain-Guillot, thank you for the detailed steps.

replace amplify/backend.ts with the below snippet

I might have missed it, but can you point me to the backend.ts file you reference here?

Besides that, I believe this information will be enough to attempt reproducing the problem. We will provide updates as we have them, thanks.

Romain-Guillot commented 2 months ago

I might have missed it, but can you point me to the backend.ts file you reference here?

It's the file created by npm create amplify@latest -y. Here is the file for my repro app: https://github.com/Romain-Guillot/amplify-cognito-linux-demo/blob/main/amplify/backend.ts. In my case, the backend is "nothing" as I use only existing AWS resources.

It's where I put my cognito informations (as it's recommended to not create the generated config file directly)

NikaHsn commented 2 months ago

@Romain-Guillot thank you for the response and providing this information. we will look into this issue and get back to you with any updates.

Equartey commented 4 weeks ago

Hi @Romain-Guillot, can you please ensure you've following the generic platform setup for Amplify Flutter, https://docs.amplify.aws/gen1/flutter/start/project-setup/platform-setup/#linux

aws-amplify / amplify-flutter