I’ve seen plenty of solutions on how to validate Form field parameters, but I am not using Django templates or implementing the front-end in Django at all. I’m looking purely for server-side backend validation. Let’s say I have

@api_view(['POST'])

def my_func(request):

And I want the data to be something like:

{
  "username" : <user>,
  "password" : <pw>,
  "age"      : <age>
}

I want to validate that username and password are strings, perhaps with a minimum length requirement. And that age is a number, again, perhaps with other restrictions, such as min/max.

Is there a standard way to do this?