FastAPI

FastAPI is a modern Python web framework for building APIs quickly and efficiently. It is built on top of Starlette for the web components and Pydantic for data validation and serialization. FastAPI is known for its high performance, easy to use syntax, and automatic generation of interactive API documentation.

Key Features of FastAPI

• Fast: FastAPI is one of the fastest web frameworks for building APIs in Python, thanks to its use of Starlette and Pydantic.
• Automatic Interactive API Documentation: FastAPI automatically generates interactive API documentation using Swagger UI or ReDoc, making it easy to explore and test your API endpoints.
• Easy to Use: FastAPI is designed to be easy to use, with a simple and intuitive syntax that allows developers to quickly build and deploy APIs.
• Validation and Serialization: FastAPI uses Pydantic for data validation and serialization, making it easy to define data models and automatically validate incoming requests.

Getting Started with FastAPI

To get started with FastAPI, you can install it using pip:

    pip install fastapi
  

Once installed, you can create a new FastAPI application by defining your API endpoints in Python code. Here is an example of a simple FastAPI application:

    
from fastapi import FastAPI

app = FastAPI()

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

With this simple code, you have created a FastAPI application with a single endpoint that returns a JSON response with the message “Hello, World!”. You can then run your application using uvicorn:

    uvicorn main:app --reload
  

Visit the official FastAPI documentation for more information on how to use FastAPI and explore its features.