from fastapi import FastAPI
from fastapi.responses import JSONResponse

app = FastAPI(
    title="My FastAPI App",
    version="1.0.0",
    description="A simple FastAPI example with uvicorn and gunicorn."
)

@app.get("/hello")
async def say_hello(name: str):
    """
    Returns a friendly greeting.
    ---
    parameters:
      - name: name
        in: query
        required: true
        schema:
          type: string
    responses:
      200:
        description: Successful Response
        content:
          application/json:
            schema:
              type: object
              properties:
                message:
                  type: string
    """
    return JSONResponse(content={"message": f"Hello, {name}!"})