public static void InitApp( string applicationId, string secretKey, string version )
{
if( string.IsNullOrEmpty( applicationId ) )
throw new ArgumentNullException( ExceptionMessage.NULL_APPLICATION_ID );
if( string.IsNullOrEmpty( secretKey ) )
throw new ArgumentNullException(ExceptionMessage.NULL_SECRET_KEY);
if( string.IsNullOrEmpty( version ) )
throw new ArgumentNullException(ExceptionMessage.NULL_VERSION);
AppId = applicationId;
SecretKey = secretKey;
VersionNum = version;
Persistence = new PersistenceService();
Data = Persistence;
Geo = new GeoService();
Messaging = new MessagingService();
Files = new FileService();
UserService = new UserService();
Events = Events.GetInstance();
Cache = Cache.GetInstance();
Counters = CounterService.GetInstance();
Logging = new LoggingService();
CustomService = new CustomService();
MessageWriter.DefaultWriter = new UnderflowWriter();
MessageWriter.AddAdditionalTypeWriter( typeof( BackendlessUser ), new BackendlessUserWriter() );
ORBConfig.GetInstance().getObjectFactories().AddArgumentObjectFactory( typeof( BackendlessUser ).FullName, new BackendlessUserFactory() );
HeadersManager.CleanHeaders();
LoginStorage loginStorage = new LoginStorage();
if( loginStorage.HasData )
HeadersManager.GetInstance().AddHeader( HeadersEnum.USER_TOKEN_KEY, loginStorage.UserToken );
}