ASGI vs WSGI in Django - Quick Revision & Key Differences

Recall & Review

beginner

What does WSGI stand for and what is its main purpose?

WSGI stands for Web Server Gateway Interface. It is a standard interface between web servers and Python web applications to handle synchronous HTTP requests.

beginner

What does ASGI stand for and how does it differ from WSGI?

ASGI stands for Asynchronous Server Gateway Interface. Unlike WSGI, it supports asynchronous communication, allowing handling of WebSockets and long-lived connections alongside HTTP.

intermediate

Why is ASGI important for modern Django applications?

ASGI allows Django apps to handle real-time features like chat, notifications, and streaming by supporting asynchronous code and protocols beyond HTTP.

beginner

Can WSGI handle WebSocket connections?

No, WSGI is designed only for synchronous HTTP requests and cannot handle WebSocket or other asynchronous protocols.

intermediate

How does the request handling model differ between WSGI and ASGI?

WSGI handles one request at a time synchronously per worker, while ASGI can handle multiple requests asynchronously, improving concurrency and performance for certain tasks.

Which interface supports asynchronous communication in Django?

A CGI

B WSGI

C ASGI

D HTTP

ASGI supports asynchronous communication, allowing features like WebSockets.

What type of requests does WSGI primarily handle?

A Synchronous HTTP only

B Asynchronous HTTP and WebSocket

C Only WebSocket

D FTP requests

WSGI handles synchronous HTTP requests only.

Which of these is a benefit of using ASGI over WSGI?

A Supports synchronous HTTP only

B Supports asynchronous protocols like WebSocket

C Runs only on Windows servers

D Does not support Django

ASGI supports asynchronous protocols such as WebSocket.

If you want to build a real-time chat app with Django, which interface should you use?

A ASGI

B SMTP

C CGI

D WSGI

ASGI supports real-time features like chat apps.

Which interface is the older standard primarily for synchronous web apps?

A ASGI

B HTTP/2

C AJAX

D WSGI

WSGI is the older standard for synchronous web applications.

Explain the main differences between ASGI and WSGI in Django.

Think about how each handles requests and protocols.

Why might a developer choose ASGI over WSGI for a Django project?

Consider the types of apps that need live updates or multiple connections.