NSURLConnection and Basic HTTP Authentication in iOS

I'm using an asynchronous connection with MGTwitterEngine and it sets the authorization in the NSMutableURLRequest (theRequest) like so:

NSString *authStr = [NSString stringWithFormat:@"%@:%@", [self username], [self password]];NSData *authData = [authStr dataUsingEncoding:NSASCIIStringEncoding];NSString *authValue = [NSString stringWithFormat:@"Basic %@", [authData base64EncodingWithLineLength:80]];[theRequest setValue:authValue forHTTPHeaderField:@"Authorization"];

I don't believe this method requires going through the challenge loop but I could be wrong

Even the question is answered, I want to present the solution, which doesn't require external libs, I found in another thread:

// Setup NSURLConnectionNSURL *URL = [NSURL URLWithString:url];NSURLRequest *request = [NSURLRequest requestWithURL:URL                                         cachePolicy:NSURLRequestUseProtocolCachePolicy                                     timeoutInterval:30.0];NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];[connection start];[connection release];// NSURLConnection Delegates- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge {    if ([challenge previousFailureCount] == 0) {        NSLog(@"received authentication challenge");        NSURLCredential *newCredential = [NSURLCredential credentialWithUser:@"USER"                                                                    password:@"PASSWORD"                                                                 persistence:NSURLCredentialPersistenceForSession];        NSLog(@"credential created");        [[challenge sender] useCredential:newCredential forAuthenticationChallenge:challenge];        NSLog(@"responded to authentication challenge");        }    else {        NSLog(@"previous authentication failure");    }}- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {    ...}- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {    ...}- (void)connectionDidFinishLoading:(NSURLConnection *)connection {    ...}- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {    ...}

Here is a detailed answer with no 3rd party involved:

Please check here:

//username and password valueNSString *username = @“your_username”;NSString *password = @“your_password”;//HTTP Basic AuthenticationNSString *authenticationString = [NSString stringWithFormat:@"%@:%@", username, password]];NSData *authenticationData = [authenticationString dataUsingEncoding:NSASCIIStringEncoding];NSString *authenticationValue = [authenticationData base64Encoding];//Set up your requestNSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:@"http://www.your-api.com/“]];// Set your user login credentials[request setValue:[NSString stringWithFormat:@"Basic %@", authenticationValue] forHTTPHeaderField:@"Authorization"];// Send your request asynchronously[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *responseCode, NSData *responseData, NSError *responseError) {      if ([responseData length] > 0 && responseError == nil){            //logic here      }else if ([responseData length] == 0 && responseError == nil){             NSLog(@"data error: %@", responseError);             UIAlertView *alert = [[UIAlertView alloc] initWithTitle:nil message:@"Error accessing the data" delegate:nil cancelButtonTitle:@"Close" otherButtonTitles:nil];             [alert show];             [alert release];      }else if (responseError != nil && responseError.code == NSURLErrorTimedOut){             NSLog(@"data timeout: %@”, NSURLErrorTimedOut);             UIAlertView *alert = [[UIAlertView alloc] initWithTitle:nil message:@"connection timeout" delegate:nil cancelButtonTitle:@"Close" otherButtonTitles:nil];             [alert show];             [alert release];      }else if (responseError != nil){             NSLog(@"data download error: %@”,responseError);             UIAlertView *alert = [[UIAlertView alloc] initWithTitle:nil message:@"data download error" delegate:nil cancelButtonTitle:@"Close" otherButtonTitles:nil];             [alert show];             [alert release];      }}]

Kindly let me know your feedback on this.

Thanks