Google Maps has been used for some of application functionalities. you will need to retrieve an API key from Google to have the app working.
Go to Google Maps Developers Console and select taxi project which was created in previous section.
You need to have these APIs enabled in library section one by one: * Google Maps Distance Matrix API * Geocoding API * Google Maps iOS SDK * Google Places SDK for iOS
Getting API key
Now go to Credentials section and create a new one. One for iOS applications and limited to it's Bundle identifier and another for your server app limited to your server ip address.
Save the API key you have retrieved for your applications. you will need it in next section.