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Posts by DefaultDude
From Flask to FastAPI
I made the switch from Flask to FastAPI last month. The learning curve was minimal, and the benefits are huge. Automatic OpenAPI docs, better performance, and native async support. No regrets!
Understanding HTTP Status Codes
200 OK, 201 Created, 400 Bad Request, 404 Not Found, 500 Internal Server Error. Learn these codes - they're how your API communicates with the world. FastAPI makes it easy to return the right ones.
Why I Switched to UV
UV is blazingly fast for Python package management. Install packages in milliseconds instead of minutes. If you haven't tried it yet, you're missing out!
The Beauty of Response Models
Response models aren't just for documentation - they filter out sensitive fields automatically. Define what goes out, and Pydantic handles the rest.
WebSockets with FastAPI
REST isn't the only game in town. FastAPI supports WebSockets for real-time communication. Chat apps, live updates, notifications - all possible!
Health Check Endpoints
Add a /health endpoint to your API. Load balancers and orchestrators need to know if your service is alive. Return 200 if healthy, details if not. I didn't do this in this tutorial, but there's only so much time in a video!
GraphQL vs REST
GraphQL is trendy, but REST is battle-tested. Choose based on your needs, not hype. FastAPI excels at REST, but Strawberry brings GraphQL if you need it.