gistfile1.txt

import asyncio

# A simple logging middleware
class LoggingMiddleware:
    def __init__(self, app):
        self.app = app

    async def __call__(self, scope, receive, send):
        # Only handle HTTP requests for this example.
        if scope["type"] == "http":
            print(f"[Middleware] Request received: {scope['path']}")
        # Call the next app (or middleware) in the stack.
        await self.app(scope, receive, send)
        if scope["type"] == "http":
            print("[Middleware] Request processing completed.")

# The basic ASGI app that returns a plain text response.
async def app(scope, receive, send):
    if scope["type"] == "http":
        # Start the HTTP response.
        await send({
            "type": "http.response.start",
            "status": 200,
            "headers": [
                (b"content-type", b"text/plain"),
            ],
        })
        # Send the response body.
        await send({
            "type": "http.response.body",
            "body": b"Hello, ASGI with middleware!",
        })

# Wrap the app with the middleware.
app_with_middleware = LoggingMiddleware(app)