#'rest_framework_jwt.authentication.JSONWebTokenAuthentication' 

#this is provided by djangorestframework-jwt wich is not not being 

#maintained anymore 

$ pip install djangorestframework-simplejwt

​

'DEFAULT_AUTHENTICATION_CLASSES': (

    'rest_framework.authentication.SessionAuthentication',

    'rest_framework.authentication.BasicAuthentication',

    'rest_framework_simplejwt.authentication.JWTAuthentication', 

),