如何使用一系列的信息来创建geofences ?

I'm trying to follow this tutorial on setting up geofences for locations but I want to create geofences using an array of information I have grabbed from my Firebase Database. Does anyone know how I would do that or have any tutorials they could link for me? I'm struggling to wrap my head around how I would do this as I'm pretty new to Swift. Could someone help explain what I would do or point me to someone/somewhere that could explain this? on setting u