@app.post("/upload/") async def upload_file(file: UploadFile = File(...)): contents = await file.read() # Save or process contents return "filename": file.filename, "size": len(contents)
To run the application, use the following command: fastapi tutorial pdf
This is where FastAPI truly shines. Pydantic models do more than just define shape – they provide: "size": len(contents) To run the application
Recommended approach to get one
One of the most powerful features of FastAPI is its automatic interactive API documentation. Once your server is running, you can visit: fastapi tutorial pdf
: The PDF explained Pydantic models—automatic data validation that felt like having a personal assistant check his work for errors before he even made them.