Return custom payload from default response - django

Question

In Django 2.0 I am using the rest_auth and currently it returns a response like
{
"token": "foo_token",
"user":{
"pk": 1,
"username": "admin",
"email": "test#test.com",
"first_name": "John",
"last_name": "Doe"
}
}
I would like to change this to return something besides the default response django provides. Something like...
{
"token": "foo_token",
"pk":1,
"username": "admin",
"somefield": "Foo Funk"
}
My urls.py look like this currently
url(r'^rest-auth/registration/', include('rest_auth.registration.urls')),
url(r'^refresh-token/', refresh_jwt_token),
url(r'^api/userlist', users.user_list),
The only place I can find to possibly change the response is in library files which I am sure is not wise to change. Any help would be great.

Answer 1

rest_auth allows you to change the responses by specifying your own serializer implementation in your settings.py.
For example if you wanted to customize the response for JWT authentication, then you might create:
# myapp/serializers.py
class MyCustomJWTSerializer(serializers.Serializer):
token = serializers.CharField()
pk = serializers.IntegerField()
username = serializers.CharField()
...
which you can then configure in your settings.py as:
REST_AUTH_SERIALIZERS = {
'JWT_SERIALIZER': 'myapp.serializers.MyCustomJWTSerializer'
}
More info here: https://django-rest-auth.readthedocs.io/en/latest/configuration.html