Pfthb

I am kinda new to Django Rest Framework.

I have a views.py that looks something like this:

class MyAPIView(APIView):
 """ My API """

 def get(self, request, path):
 """ Handles GET calls """

 def post(self, request, path):
 """ Handles POST calls """

And I have a util class in my package like so:

class MyUtilClass:
""" Helps out with stuff """

def some_method(self, path):
print('I will now do things to the path: ', path)

Now, I would like to inject an instance of some other class that does some task that it's supposed to into my view. Something like this:

class MyAPIView(APIView):
 """ My API """

 _some_util_instance = None # How to inject this?

 def __init__(self, util_instance):
 self._some_util_instance = util_instance # Is this the right way?

 def get(self, request, path):
 """ Handles GET calls """
 self._some_util_instance.some_method(path) # This is why I want this object injected.

 def post(self, request, path):
 """ Handles POST calls """

What is the best way to inject such an instance into my views class?

I could not find much about this in the documentation. I am familiar with using DI and IoC Containers. However, I am not sure how Django Rest Framework handles all of that.

class MyAPIView(APIView):
 """ My API """

 _some_util_instance = MyUtilClass()

Or

class MyAPIView(APIView):
 """ My API """

 def __init__(self, *args, **kwargs):
 self._some_util_instance = MyUtilClass()
 super().__init__(self, *args, **kwargs)

Or

MyAPIView.as_view(
 _some_util_instance=MyUtilClass()
)

class MyAPIView(APIView):
 """ My API """

 _some_util_instance = None

Or

don't use a class as a container for your utility functions, just define them as module-level functions. This is my preferred approach.

Or

Use static/class methods

class MyUtilClass:
 """ Helps out with stuff """

 @classmethod
 def some_method(cls, path):
 print('I will now do things to the path: ', path)

Then you can simply call MyUtilClass.some_method(path) in the view without creating an instance of MyUtilityClass