Hi, there. How are you?
I see you want to display the route from the user position to the destination.
AS a senior web developer, I have a lot of experience with map integration and I used Google Maps, Leaflet, Mapbox, open layers, modest maps, data maps, jVectorMap, CesiumJS, Polymaps, ZeeMaps, and open street map.
Especially, I used a lot of google maps and I am sure I can do it perfectly for you.
I am looking forward to hearing from you soon.
Regards