Firebasedatabase.app URL in Firebase

Hi,
I want to use the node of Firebase, but I have a problem. In Firebase, when I create a Realtime Database, it generates a URL of the database finished in "firebasedatabase.app/". And them, when I'm introducing it in the node, here is the problem, because the only way to introduce an URL of a database is if is finished in "firebaseio.com".
I don't know if the problem is in the creation of the database, or in the own node.
Thanks.
Miguel.