Registering a Listener for HTTP Errors in iOS Applications

To ensure that OData iOS clients are notified of HTTP errors while establishing a connection with the network edge, implement a listener.

Syntax

To register a listener for HTTP error codes, implement the protocol ODPHTTPErrorListenerDelegate.

@protocol ODPHTTPErrorListenerDelegate <NSObject>
@required
- (void) onHTTPError: (int)code errorMessage:(NSString*)message httpHeaders:(NSDictionary*)headers;

Examples

Register a delegate for HTTP authentication challenge –

-(void) onHTTPError:(int)code errorMessage:(NSSTring*)message httpHeaders:(NSDictionary*)headers
{
  if (code==xxx){
   //Display Error Messages
  }
}

-(IBAction)registerUser:(id)sender
{
 ODPUserManager* userManager = nil;
 @try
 {
  userManager = [ODPUserManager getInstance:@"NewFlight"];
  [ODPClientListeners setHTTPErrorListenerDelegate:self];
  [userManager setConnectionProfile:@<host> withSupPort:<port> withServerFarmID:@<farmID>];
  [userManager registerUser:@<supuser> withSecurityConfig:@<securityconfig> withPassword:@<password>];
 }
 @catch (NSException *exception {
  NSLog(@"%@:%@", [[exception userInfo] objectForKey:@"ErrorCode"],[[exception userInfo] objectForKey:@"ErrorMessage"]);
 }
}