gistfile1.txt

.factory('owmNearby', ['owmRequest', '$interpolate', 'OWM_LAT_LNG_PATH',
                 function(owmRequest,   $interpolate,   OWM_LAT_LNG_PATH) {
    return function(lat, lng) {
      var path = $interpolate(OWM_LAT_LNG_PATH)({
        lat : lat,
        lng : lng
      });
      return owmRequest(path);
    }
  }])
  

first return means that it's called like owmNearby(lat, lng)
and returns 'path'

2nd return is the return from the service?