How to Move, drag and reload my location

[thanhansoft]

Hi admin,
I want to make this website https://propzy.vn/van-phong-cho-thue-hcm.

I want to explain:
I have a list of longitude and latitude locations.
ex: Location A: 10.111, 10.222, Location B 11.111, 12.222, Location C 10.22211, 11.33322 .......
How to make when Move, drag Gmap then reload page and show my location in longitude and latitude of Gmap current

I'm not good at English, I want to be like the site above, please help me