My goal is to simply calculate a distance from point A to point B using IOS google maps SDK.
I found out that there is an API call Distance Matrix API. The questions are
1 -> Yes, you need to make a HTTP request.
2 -> No, you do not need to run your own server. You just need a google API key with which you make requests to Google servers. You can get the API key by creating a google account and following the instructions in the below link:- https://developers.google.com/maps/documentation/distance-matrix/start
3 -> You do not need to integrate the full iOS Google SDK if you need to perform only one of these tasks from the SDK. You can just hit the API following the instructions from the below doc Distance Matrix API doc:- https://developers.google.com/maps/documentation/distance-matrix/intro?hl=en#RequestParameters