I use some codes to subscribe to a chanel to receive messages in my app. Today i got this error code 502 that i don’t see in the document and after a few minutes of subscribing, my app crashed with this error. If i comment the codes for Subscription then everything works fine. Below are the codes i use for Subscription and the error i got. Please help me !!!
http://support.backendless.com/public/attachments/87893128936d3ac9dd579ae7846664be.png</img>
And the codes for Subscription:
- (void)subscribe {
//If Current user is a Shipper
if ([User shared].type == 1) {
[backendless.messagingService subscribe:@“default” subscriptionResponse:^(id response) {
NSArray *messages = response;
for (id obj in messages) {
if ([obj isKindOfClass:[Message class]]) {
Message *message = (Message *)obj;
NSLog(@“New message has arrived !”);
[self getInfoFromMessageData:message.data];
if ([self checkLocation]) {
UIAlertController *confirmNotification = [UIAlertController alertControllerWithTitle:@“Order Detail” message:[messageInfo objectAtIndex:4] preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *cancelButton = [UIAlertAction actionWithTitle:@“Cancel” style:UIAlertActionStyleCancel handler:nil];
[confirmNotification addAction:cancelButton];
UIAlertAction *acceptAction = [UIAlertAction actionWithTitle:@“Accept” style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
[self respondFromMessage];
}];
[confirmNotification addAction:acceptAction];
[self presentViewController:confirmNotification animated:YES completion:nil];
}
}
}
} subscriptionError:^(Fault *error) {
NSLog(@“subscribe (ERROR): %@”, error.message);
} response:^(BESubscription *response) {
NSLog(@“subscribe: SUBSCRIPTION: %@”, response);
} error:^(Fault *fault) {
NSLog(@“subscribe FAULT: %@”, fault.message);
}];
}
}
