locationService.js

angular.module('myapp.services', [])
.service('LocationService', function ($cordovaGeolocation, $q) {
    return {
      askLocationPermission: function () {
        var permissions = cordova.plugins.permissions, // could not find a better way to access cordova; it's not in $window
          deferred = $q.defer();
        
        permissions.requestPermission(permissions.ACCESS_COARSE_LOCATION, function(result) {
          deferred.resolve();
        }, function(err) {
          deferred.reject(err);
        });
        
        return deferred.promise;
      },
      getCoords: function () {
        return $cordovaGeolocation.getCurrentPosition({timeout: 10000, enableHighAccuracy: false})
          .then(function (position) {
            return position.coords;
          });
      }
    };
  })