Middleware support

[inforian]

• Instead of importing Mixin in every View, Do this job using middleware is more durable.

[inforian]

• Sorry I was crating the pull request on my fork but instead created on Parent repo. So you can ignore This pull request.

• However if you liked the idea , I can explain what I did and why ? and can write test cases too

[avelis]

@inforian Thanks for making a PR. If you can briefly explain how this betters the library I am all for it. Write somes tests would be great. Lastly, add some quick documentation on how it should be installed.
Would this be a breaking change for current users? Or would does it compliment the mixin?

[inforian]

• The main idea is to avoid redundancy of using Mixin in every viewset. Instead their must be a way where you have to mention just once and that will be applicable everywhere (Some configurable settings can be provided).

• So I decided to write a Django middleware for the same which will use this mixin functions like :

  • In process_request -> initial
  • process_exception -> handle_exception
  • process_response -> finalize_response

• But during Implementation I faced some issues like :
  - Your Mixin use DRF Request Object but Middleware will pass HttpRequest object , So some things may not be accessible in Mixin like request.data .

  • In finalize_response some response do not have rendered_content
  • calling super_class super(BaseLoggingMixin, self).any_function(request, *args, **kwargs)

• However I fixed above issues but then I realize This repo aims at DRF not Django , So a Middlware won't be a good option. But I still think there must be a single way of enabling this logging functionality instead of use Mixin in every Viewset.

• So I wanted to contribute and enable above functionality (keeping the old one too) but first I wanted to know your views and Any thoughts on what will be the best way to do so ?