FEATURE: Invite admin api has an optional param send_email which can prevent sending an email to the invited user. The api will return the password reset url so that the caller can send an email with it instead.

app/controllers/admin/users_controller.rb

@@ -320,12 +320,15 @@ class Admin::UsersController < Admin::AdminController
     user.email_tokens.update_all  confirmed: true
 
     email_token = user.email_tokens.create(email: user.email)
-    Jobs.enqueue(:user_email,
+
+    unless params[:send_email] == '0' || params[:send_email] == 'false'
+      Jobs.enqueue( :user_email,
                     type: :account_created,
                     user_id: user.id,
                     email_token: email_token.token)
+    end
 
-    render json: success_json
+    render json: success_json.merge!(password_url: "#{Discourse.base_url}/users/password-reset/#{email_token.token}")
 
   end