Javascript get data from sql using object with openlayers 3

I added some points on the map using javascript(OpenLayers3). These points' positions are fetching from sql(randomly generated). I have to create a pop-up menu about each object on the map. This pop-up includes the data information of each selected point but ı dont know how to get the data from sql using the object on the map.

Points Img

How to get data ? Img