SwaggerHub VS Django REST framework

I have downloaded Typescript-Fetch client SDK from https://app.swaggerhub.com/. Also downloaded required dependencies for the application. But I don't know what is next step in this. How to run this application? There is one spec.ts file also, So do we have any way to run this file and validate test cases? Also how to run whole application?. Source: almost 3 years ago

Django Rest Framework seems like the most mature and works great with Django. But its strength, if I understand correctly, is for auto-creating all the necessary endpoints for manipulating models, which might be useful for data entry applications. I know that it's super flexible and probably my use case will be covered, but it seems that this it might get complicated. Source: almost 2 years ago

There is one last thing I'm a little confused on with Django Rest Framework and that's the different between permission classes and authentication classes. Source: almost 2 years ago

I am using django-rest-framework. It provides an awesome Django admin style browsable self-documenting API. But anyone can visit those pages and use the interface to add data (POST). How can I disable it? Source: over 2 years ago