The module uses SPC Web Gateway REST and Websocket API to get status from the SPC intrusion system and Fibaro REST API to set status of global variables in the Fibaro Home Center 2. The status of the global variables can then be used in Virtual Devices and Scenes to trigger actions or be displayed in Home Center GUI.
You find the code here at github
Is it possible to integrate the web gateway also with Domoticz?
To integrate SPC Gateway with Domoticz is probable very easy. It seems that you can use the REST API or maybe even publish values directly to Domoticz MQTT broker.
At the moment I'm very busy with the new SPC Gateway device. But maybe someone else can support with this bindning, or you can do it yourself.