What is FastAPI and how do I get started with it?

What is FastAPI and how do I get started with it?

FastAPI is a modern web framework for building APIs with Python. It’s fast, easy to use, and supports asynchronous programming. To get started, you can install it using pip: pip install fastapi[all].

What are the main features of FastAPI?

Some main features include automatic generation of OpenAPI documentation, support for asynchronous requests, and data validation using Pydantic.

Can you show me a simple example of a FastAPI application?

Sure! Here’s a simple example:

from fastapi import FastAPI

app = FastAPI()

@app.get("/")
async def read_root():
    return {"Hello": "World"}

This creates a basic API that returns a JSON response.

How do I run the FastAPI application?

You can run the application using Uvicorn. Install it with pip install uvicorn, then run your app with uvicorn your_app:app --reload.