FastAPI

1---
2description: FastAPI best practices and patterns for building modern Python web APIs
3globs: **/*.py, app/**/*.py, api/**/*.py
4---
5 
6# FastAPI Best Practices
7 
8## Project Structure
9- Use proper directory structure
10- Implement proper module organization
11- Use proper dependency injection
12- Keep routes organized by domain
13- Implement proper middleware
14- Use proper configuration management
15 
16## API Design
17- Use proper HTTP methods
18- Implement proper status codes
19- Use proper request/response models
20- Implement proper validation
21- Use proper error handling
22- Document APIs with OpenAPI
23 
24## Models
25- Use Pydantic models
26- Implement proper validation
27- Use proper type hints
28- Keep models organized
29- Use proper inheritance
30- Implement proper serialization
31 
32## Database
33- Use proper ORM (SQLAlchemy)
34- Implement proper migrations
35- Use proper connection pooling
36- Implement proper transactions
37- Use proper query optimization
38- Handle database errors properly
39 
40## Authentication
41- Implement proper JWT authentication
42- Use proper password hashing
43- Implement proper role-based access
44- Use proper session management
45- Implement proper OAuth2
46- Handle authentication errors properly
47 
48## Security
49- Implement proper CORS
50- Use proper rate limiting
51- Implement proper input validation
52- Use proper security headers
53- Handle security errors properly
54- Implement proper logging
55 
56## Performance
57- Use proper caching
58- Implement proper async operations
59- Use proper background tasks
60- Implement proper connection pooling
61- Use proper query optimization
62- Monitor performance metrics
63 
64## Testing
65- Write proper unit tests
66- Implement proper integration tests
67- Use proper test fixtures
68- Implement proper mocking
69- Test error scenarios
70- Use proper test coverage
71 
72## Deployment
73- Use proper Docker configuration
74- Implement proper CI/CD
75- Use proper environment variables
76- Implement proper logging
77- Use proper monitoring
78- Handle deployment errors properly
79 
80## Documentation
81- Use proper docstrings
82- Implement proper API documentation
83- Use proper type hints
84- Keep documentation updated
85- Document error scenarios
86- Use proper versioning