What is Django views middleware and how does it work?

What is Django views middleware and how does it work?

Django views middleware is a way to process requests globally before they reach the view or after the view has processed them. It allows you to add functionality like authentication, logging, or modifying the request/response.

Can you give me an example of how to create a custom middleware?

Sure! To create custom middleware, you define a class with methods like __init__, __call__, or process_request. For example:

class MyCustomMiddleware:
    def __init__(self, get_response):
        self.get_response = get_response

    def __call__(self, request):
        # Code to execute before the view
        response = self.get_response(request)
        # Code to execute after the view
        return response

How do I add this middleware to my Django project?

You can add your middleware to the MIDDLEWARE setting in your settings.py file. Just include the path to your middleware class, like this:

MIDDLEWARE = [
    ...,
    'myapp.middleware.MyCustomMiddleware',
    ...,
]```

What are some common use cases for middleware in Django?

Common use cases include handling authentication, logging requests, modifying responses, and managing CORS headers.