Request/response middleware flow in Django - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a middleware class with the correct method to process requests.

Django

class SimpleMiddleware:
    def [1](self, request):
        print("Request received")
        return None

Drag options to blanks, or click blank then click option'

Ahandle_request

Bprocess_request

Crequest_process

Dprocess_response

Attempts:

3 left

💡 Hint

Common Mistakes

Using process_response instead of process_request for request handling.

Using incorrect method names like handle_request.

The process_request method is used in Django middleware to handle incoming requests before the view is called.

2fill in blank

medium

Complete the code to define a middleware method that modifies the response before returning it.

Django

class SimpleMiddleware:
    def [1](self, request, response):
        response['X-Custom-Header'] = 'Value'
        return response

Drag options to blanks, or click blank then click option'

Amodify_response

Bprocess_request

Chandle_response

Dprocess_response

Attempts:

3 left

💡 Hint

Common Mistakes

Using process_request to modify responses.

Using non-standard method names like handle_response.

The process_response method is called after the view returns a response, allowing middleware to modify it.

3fill in blank

hard

Fix the error in the middleware method name that should process the request.

Django

class CustomMiddleware:
    def [1](self, request):
        print("Processing request")
        return None

Drag options to blanks, or click blank then click option'

Aprocess_request

Brequest_handler

Chandle_request

Dprocess_response

Attempts:

3 left

💡 Hint

Common Mistakes

Using process_response instead of process_request.

Using custom method names not recognized by Django.

The correct method name to process requests in Django middleware is process_request. Other names will not be called by Django.

4fill in blank

hard

Fill both blanks to create a middleware that processes request and response correctly.

Django

class LoggingMiddleware:
    def [1](self, request):
        print("Request logged")
        return None

    def [2](self, request, response):
        print("Response logged")
        return response

Drag options to blanks, or click blank then click option'

Aprocess_request

Bhandle_request

Cprocess_response

Dhandle_response

Attempts:

3 left

💡 Hint

Common Mistakes

Using handle_request or handle_response which are not recognized.

Mixing up request and response method names.

The middleware uses process_request to handle requests and process_response to handle responses, following Django's middleware pattern.

5fill in blank

hard

Fill all three blanks to complete a middleware that logs request path, processes request, and adds a header to response.

Django

class HeaderMiddleware:
    def [1](self, request):
        print(f"Path: {request.[2]")
        return None

    def [3](self, request, response):
        response['X-Processed'] = 'True'
        return response

Drag options to blanks, or click blank then click option'

Aprocess_request

Bpath

Cprocess_response

Durl

Attempts:

3 left

💡 Hint

Common Mistakes

Using request.url which does not exist in Django request.

Using incorrect method names for middleware.

The middleware uses process_request to log the request path accessed via request.path, and process_response to add a custom header to the response.