Custom GET to send notifications

Greetings all!

Yet again i turn to the trusty Icinga community with yet another question.

Namely, notification checks. I want to send GET request with data about the host and status to different notification template users. I have the GET tested and working properly but im not sure how i can convince Icinga Web to send GET with proper variables for user, host.name and host.status.

Is this possible only with config files or is this something i can do with director?

Best regards and thanks in advance,
Terro