How to implement flask restplus authorizations
Very recently, I ran into a similar problem. But luckily we do have the Namespace that accepts a list of decorators, where in you can pass the custom decorator at Resource level, and it will be implemented by default to each method of that resource.
api = Namespace( 'some Name here', description='some description', security='apiKey', authorizations = authorizations, decorators= [token_required])
One point to note however, I had to just specify the security with each doc in the method, as under:
@api.doc('some operation', security = 'apiKey')
The beauty with this is that one click authorization flows to each method in the resource.