Simple example of NSURLSession with authentication

Question

I have written a REST service that serves up some data. It is passcode protected.

I am trying to write a background process that will grab the data and stuff it int

Answer 1

I think your question is vague and underspecified. That said, here's one solution, from here:

-(void)URLSession:(NSURLSession *)session didReceiveChallenge:(NSURLAuthenticationChallenge *)challenge completionHandler:(void (^)(    NSURLSessionAuthChallengeDisposition disposition, NSURLCredential *credential))completionHandler
{
    if (_sessionFailureCount == 0) {
        NSURLCredential *cred = [NSURLCredential credentialWithUser:self.userName password:self.password persistence:NSURLCredentialPersistenceNone];        
    completionHandler(NSURLSessionAuthChallengeUseCredential, cred);
    } else {
        completionHandler(NSURLSessionAuthChallengeCancelAuthenticationChallenge, nil);
    }
    _sessionFailureCount++;
}

I strongly recommend that you read and re-read the Apple docs on this.