SHELL

install simplejwt django

$ pip install djangorestframework-simplejwt

REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': (
        'rest_framework_simplejwt.authentication.JWTAuthentication',
    )
}

simplejwt in django setup

REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': (
        ...
        'rest_framework_simplejwt.authentication.JWTAuthentication',
    )
}