Fastapi Tutorial Pdf Jun 2026

def test_read_root(): response = client.get("/") assert response.status_code == 200 assert response.json() == {"Hello": "World"}

Developers select FastAPI over traditional frameworks like Django or Flask for several critical reasons: fastapi tutorial pdf

Very high performance, on par with NodeJS and Go (thanks to Starlette and Pydantic) 1. def test_read_root(): response = client

In this example, we define a route that accepts a JSON payload in the request body. fastapi tutorial pdf

Let's create a minimal application to understand the basic structure. Create main.py Create a file named main.py and insert the following code:

FastAPI provides support for path parameters and query parameters. Here's an example: