struct json_object *param = json_object_new_object();
json_object_object_add(param, _latitudeInDegrees, json_object_new_double(m_dest.first));
json_object_object_add(param, _longitudeInDegrees, json_object_new_double(m_dest.second));
struct json_object *param = json_object_new_object();
json_object_object_add(param, _latitudeInDegrees, json_object_new_double(m_dest.first));
json_object_object_add(param, _longitudeInDegrees, json_object_new_double(m_dest.second));