Get data format json and show location on google maps

i have file format json “http://localhost/ionic2/src/assets/api/devices”, in img postman. i want show listdata in menu and show location google maps. but i can not. do you help me. thank a lot!

Look at Providers to load the data. I think the Angular Tour of Heros has a sample. I know I touch on this in my O’Reilly book.