can you tell me how you conected the wires. and can you tell me how to setupp easy esp and domoticz

Hello all, I want to add a door sensor to my domoticz system, but I can not quite do that. can someone help me how to connect and setup the door sensor on my easy esp? does it need to be conected to the gnd and esp pin or 3v and esp pin? and can someone help me how I set the sensor to domoticz ...