'signup_source' parameter in URL

[merefield (Robert)]

Use external_id?

Finding a user by their identity provider 'external ID'

This guide explains how to find a Discourse user based on their external_id from an identity provider using API calls. Required user level: Administrator When using an external authentication system, Discourse keeps track of two user ids: the Discourse user_id, and an external_id from the identity provider. If you need to lookup a Discourse user based on the external_id, this howto article is for you! Below, you’ll learn how to perform this operation. API S…