13.2. Middleware Custom

>>> 
... from time import time
...
... class MyMiddleware:
...     def __init__(self, get_response):
...         """One time configuration and initialization"""
...         self.get_response = get_response
...         print('init')
...
...     def __call__(self, request):
...         """Called for each request"""
...         start = time()
...         response = self.get_response(request)
...         stop = time()
...         duration = stop - start
...         print(f'Processing time: {duration:.2f}')
...         print(request)
...         print(response)
...         return response