Multiple Django apps, shared authentication

Question

Two answers to this question, depending on whether sharing is across different sites or different subdomains Second answer: Multiple Django apps, shared authenticati

Answer 1

You can use database routers for specifying which database should be used for auth backend.

Here I have given a example router code below:

class UserSessionRouter(object):

    def db_for_read(self, model, **hints):
        if model._meta.app_label == 'auth':
            return 'usersandsessions'
        elif model._meta.app_label == 'accounts':
            return 'usersandsessions'
        elif model._meta.app_label == 'sessions':
            return 'usersandsessions'
        return None

    def db_for_write(self, model, **hints):
        if model._meta.app_label == 'auth':
            return 'usersandsessions'
        elif model._meta.app_label == 'accounts':
            return 'usersandsessions'
        elif model._meta.app_label == 'sessions':
            return 'usersandsessions'
        return None

Then specify router using the database setting DATABASE_ROUTERS and SESSION_COOKIE_DOMAIN as given below

DATABASE_ROUTERS = ['site2.routers.UserSessionRouter']
SESSION_COOKIE_DOMAIN = 'site1.com'