Django Rest Framework is a toolkit built on top of Django web framework that helps you in developing RESTful API’s, with which you could use HTTP requests to access and use data to create interactive applications, that would help you use various web services to improve the functionality of the services that you offer.
If you wish to tread the path of Web Development, through Python Django, I recommend you check out the Python Django training course, from Intellipaat. And if you are a beginner in this, then I would suggest you check out the Python Django video from experts.