Bulletin

A public blog/forum application built with Flutter, Provider, go_router, and Supabase.

Features

• Email and password registration, login, and logout
• Public paginated post listing
• Multiple-image previews on post cards
• Post create, read, update, and delete
• Multiple post image upload, addition, and deletion
• Comment create, read, update, and delete
• Multiple comment image upload, addition, and deletion
• Owner-only edit and delete actions
• Responsive Flutter Web and mobile layout

Technology

• Flutter and Dart
• Provider for state management
• go_router for navigation
• Supabase Authentication
• Supabase Postgres Database with Row Level Security
• Supabase Storage

Supabase Setup

1. Create a Supabase project.
2. Open the Supabase SQL Editor.
3. Run supabase/schema.sql.
4. In Authentication settings, disable email confirmation for faster testing.
5. Copy .env.example to .env.
6. Add the project URL and publishable key:

SUPABASE_URL=https://your-project.supabase.co
SUPABASE_PUBLISHABLE_KEY=your-publishable-key

The publishable key is intended for client applications. Security is enforced by the Row Level Security and Storage policies in supabase/schema.sql.

Comments store the author's email directly. The application does not require a separate profiles table.

Run Locally

flutter pub get
flutter run --dart-define-from-file=.env

For Flutter Web:

flutter run -d chrome --dart-define-from-file=.env

Verify

Test these flows before submission:

1. Logged-out visitors can list and view posts, post images, comments, and comment images.
2. Logged-out visitors cannot create or edit content.
3. User A can create, update, and delete their own posts and comments.
4. User B cannot update or delete content owned by User A.
5. Pagination loads another page without duplicating posts.
6. Deleting a post or comment removes its images from Supabase Storage.
7. Mobile and desktop layouts allow every button to be pressed.

Run checks:

flutter analyze
flutter test
flutter build web --release

Deploy Flutter Web

Build for a root domain such as Vercel or Cloudflare Pages:

flutter build web --release --dart-define-from-file=.env

Deploy the generated build/web directory.

For GitHub Pages under a repository path:

flutter build web --release --base-href /bulletin-flutter/ --dart-define-from-file=.env

Deploy build/web to the gh-pages branch. Configure the host so unknown routes return index.html; this allows go_router URLs to load after a browser refresh.

Submission

• Live URL: https://bulletin-flutter.pages.dev
• GitHub repository: https://github.com/abdlmnn/bulletin-flutter