iOS-MPN-DeviceRegistration.m

- (void) connectAndRegister:(LSMPNDevice *)device {

    // Create the LSLightstreamerClient and start connection
    _client= [[LSLightstreamerClient alloc] initWithServerAddress:PUSH_SERVER_URL adapterSet:ADAPTER_SET];
    [_client connect];
    [_client addDelegate:self];
    
    // Add device listener and start registration
    [device addDelegate:self];
    [_client registerForMPN:device];
}

#pragma mark - LSMPNDeviceDelegate

- (void) mpnDeviceDidRegister:(nonnull LSMPNDevice *)device {
    
    // Registration succeeded
}

- (void) mpnDevice:(nonnull LSMPNDevice *)device didFailRegistrationWithErrorCode:(NSInteger)code message:(nullable NSString *)message {
    
    // Registration failed
}