post https://au-api.basiq.io/users//auth_link
Create a new auth_link object by making a POST request to the auth_link endpoint. The new auth_link will effectively delete previous auth_link for that user, rendering the previous URL(s) invalid.
The 'mobile' attribute is used for 2FA SMS verification and is conditionally required. If it is not specified, we will look up the mobile on the user object; if that is not specified either, you will get an error. If both are specified, the mobile number on the auth_link will take precedence.