Understanding versioning classes
Sometimes, we have to keep many different versions of a RESTful Web Service alive at the same time. For example, we might need to have version 1 and version 2 of our RESTful Web Service accepting and processing requests. There are many versioning schemes that make it possible to serve many versions of a web service.
The Django REST framework provides five classes in the rest_framework.versioning module. All of them are subclasses of the BaseVersioning class. The five classes allow us to work with a specific versioning scheme.
We can use one of these classes in combination with changes in the URL configurations and other pieces of code to support the selected versioning scheme. Each class is responsible for determining the version based on the implemented schema and to make sure that the specified version number is a valid one based on the allowed version settings. The classes provide different mechanisms to determine the version number. The following are the...
