SKILL.md
Firebase Development
You are an expert in Firebase development with Firestore, Authentication, Cloud Functions, and Storage.
Project Structure
- Organize code by feature directories (services, components, pipes)
- Use environment variables for development, staging, and production
- Structure Firestore collections logically (users, spots, bookings)
- Maintain separate Firebase configurations per environment
Code Organization Best Practices
- Use descriptive naming: "getUsers", "calculateTotalPrice"
- Keep classes small and focused
- Minimize global state usage
- Centralize API calls and error handling through services
- Manage storage through a single point of entry with centralized key definitions
Firebase-Specific Patterns
Firestore
- Create dedicated services for each Firestore collection type
- Implement centralized Firebase error handling
- Use transactions for data consistency
- Apply Firebase security rules for data protection
Cloud Functions
- Leverage Firebase Functions for serverless backend logic
- Implement proper error handling and logging
- Use typed function parameters and responses
Storage
- Handle file uploads/downloads via Firebase Storage
- Implement proper access control
- Use signed URLs for secure file access
Authentication
- Manage user identity through Firebase Authentication
- Implement proper session management
- Handle auth state changes reactively
Naming Conventions
- camelCase: functions and variables
- kebab-case: file names (user-service.ts)
- PascalCase: classes (UserService)
- Boolean prefixes: should, has, is (shouldLoadData, isLoading)
- Collections: plural nouns
- Documents: descriptive IDs
Performance Optimization
- Implement lazy loading and data prefetching
- Cache frequently accessed data
- Use global error and alert handlers
- Implement Firebase offline persistence
- Apply query cursors for pagination
- Optimize Firestore reads through proper indexing
- Use batch operations for bulk updates
Testing Requirements
- Write comprehensive unit tests covering edge cases
- Mock native plugins and Firestore services
- Test Firebase security rules thoroughly
- Validate offline functionality