REST API with FastAPI: Complete Tutorial

Build REST APIs with FastAPI step by step.

Create high-performance APIs with automatic documentation.

Setup

pip install fastapi uvicorn

Basic API

from fastapi import FastAPI

from pydantic import BaseModel

app = FastAPI()

class Item(BaseModel):

name: str

price: float

@app.post(“/items/”)

async def create_item(item: Item):

return item

Run Server

uvicorn main:app –reload

Documentation

Open http://localhost:8000/docs

Conclusion

FastAPI makes API development fast and easy!

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