Tell about your development experience using Python and FastAPI.

FastAPI is a modern, fast (high-performance) web framework for building APIs with Python, based on OpenAPI and JSON Schema standards. In my development experience using Python and FastAPI, I have created RESTful APIs for various applications, including microservices and backend for web applications.

The main advantages of FastAPI that I have used:

• Automatic API documentation generation (Swagger UI, ReDoc).
• Support for asynchronous programming for high performance.
• Data validation and serialization using Pydantic.

Example of a simple API with FastAPI:

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_name": item.name, "item_price": item.price}

In projects, I integrated FastAPI with databases (e.g., PostgreSQL via SQLAlchemy), configured authentication, handled errors, and wrote tests for APIs. FastAPI allows for quick and convenient creation of scalable and maintainable services.