I have made a small and simple webhook integration in rocket.chat, my first one actually.
This if for anyone out there who incidentally use rocket.chat with a group of friends that plays the trading card game Magic the Gathering.
What it basically does, is showing an image of a card whenever a specific keyword is used. So if you want to show off a card to your friends, or you are discussing a card but cant exactly remember what it was, you write “!card” and then the card name. An image of the card will be displayed.
You can find the code along with more information here: https://github.com/frederiktoft/MtgRocket
(The integration is called “MtgRocket” because I could not come up with a better name…)