RegistryUI can use a Twitter Login Provider so users can log into RegistryUI using their Twitter account. Before users can log in, the site administrator must add the user using Registry > Users & Groups and send an invitation email to the user with an invitation code. This invitation code is required when logging in using a Twitter account the very first time.
In order to enable the Twitter Login Provider at Admin > Login Providers, External Login tab, a Twitter API Key and Twitter API Secret Key must be obtained. This can be done on Twitter's site at https://developer.twitter.com/apps.
Click the "Create an app" button and complete the required fields.
Authorize the domain of your registry and enter the following as Callback URLs:
https://yourregistry.yourcompany.com/signin-twitter or http://yourregistry.yourcompany.com/signin-twitter (not recommended)
After creating the credentials, click on "Keys & tokens" and copy the API Key and API Secret Key from Twitter's page to the "Twitter API Key" and "Twitter Secret Key" fields of the Admin > Login Providers, External Login tab.
Make sure to select the "Use Twitter" check box to enable login using Twitter accounts.