Django 1.10 how to write an intermediate layer?

Question

Django

Can anyone send me an example of a middleware written in Django 1.10? Or explain how to write them?
It seems to be written simply, and even easier than in 1.9, but I don’t understand where to enter process_view(), process_exception(), process_template_response().

Answer 1

I need to write intermediate layers, some of which will fire before the view is selected (process_view) and some after the render (process_template_response)

def do_shit1():
  pass

def do_shit2():
  pass

def common_view(request):
  if True: 
    do_shit1()
    return render(request, 'tpl1.html')
  else: 
    do_shit2()
    return render(request, 'tpl2.html')