Create user without password for OAuth2 login

[mbrodala]

Is there a way to create users via the REST API (users.create) without password? These users need to be able to log in via a custom OAuth2 provider which doesn't work if a user has a password set.

I know that users are created implicitly upon first login via OAuth2 but in this scenario I don't get the user ID from RocketChat which I need to trigger updates from a foreign system later. That's why my plan is to create users in RocketChat manually before they start using RocketChat.

[mbrodala]

As a workaround I now manually connect to the MongoDB database of RocketChat and modify the services field of the newly created user. With JavaScript this would look like this:

rocketchat.users.updateOne(
  { _id: user.id },
  {
    $set: {
      services: {
        <custom-oauth2-identifier>: {
          _OAuthCustom: true,
          id: user.username
        }
      }
    }
  }
)

(user.id is the internal user ID within RocketChat, as returned e.g. by the users.create API call. user.username is the ID as returned by my custom OAuth2 service.)