Require username at signup with social connection

[jake.soenneker]

This seems to be a duplicate (by the same user) of the following forum post around a year ago:

Signup with username & social connections

I´m using the auth0-lock version 10.6.0 with angular2. I am currently allowing sign up with three connections: database, facebook & twitter. I whould like all users to have a unique username that sign up to my app. I´ts really easy with database and works great but is it possible to force users from social connections to create their own username when signing up?