Fastapi Tutorial Pdf May 2026

# GET endpoint to retrieve a single item by ID @app.get("/items/{item_id}") def read_item(item_id: int): for item in items: if item["id"] == item_id: return item return {"error": "Item not found"}

from fastapi import FastAPI from pydantic import BaseModel fastapi tutorial pdf

app = FastAPI()

In this tutorial, we've built a simple API using FastAPI to demonstrate its capabilities. FastAPI provides a lot of features out of the box, including support for asynchronous programming, automatic API documentation, and strong typing. # GET endpoint to retrieve a single item by ID @app

from fastapi import FastAPI

You can download a PDF version of this tutorial [here](insert link to PDF). including support for asynchronous programming

uvicorn main:app --host 0.0.0.0 --port 8000 This will start the development server, and you can access your API at http://localhost:8000 .