Investigate possibility of using Auth0 for this project

[OysteinAmundsen]

Handling users ourselves has proven to be quite the task. We would like for this to be outsourced to auth0. But we are unsure if this can be done without exposing our database connection to the outside world.

We do not want to go to auth0 to register users, we want this to be done through our application. If auth0 has any features (api's) allowing user registration to be done in our application but store users in auth0, that would be fine though.

Roles and authorization is also something auth0 can handle. But does that also mean that we have to use the auth0 interface to assign roles to users, or can this be done using api's?