ASGI
ASGI (Asynchronous Server Gateway Interface) is a standard interface between web servers and Python web applications or frameworks, designed to handle asynchronous operations and support protocols beyond HTTP, such as WebSockets. It enables Python applications to run asynchronously, improving performance for I/O-bound tasks like handling multiple concurrent connections. ASGI serves as a successor to WSGI (Web Server Gateway Interface), offering better scalability and modern web protocol support.
Developers should learn and use ASGI when building high-performance, real-time web applications in Python that require asynchronous capabilities, such as chat apps, live notifications, or APIs with WebSocket support. It is essential for modern Python web frameworks like FastAPI, Starlette, and Django Channels, allowing them to leverage async/await syntax for efficient handling of concurrent requests and long-lived connections.