NSURLSessionDownloadTask keeps retrying when using Background Configuration

Question

I have a problem when it comes to a slow backend and downloading data with background configuration.

NSURLSessionConfiguration *sessionConfig = [NSURLSessionConf         


        

Answer 1

Could not stop myself, here is your answer a bit refactored :)

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:URL];
NSURLSessionConfiguration *sessionConfig;
float timeout = 5 * 60.0f;

BOOL iOS8OrNewer = [[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0;
if (iOS8OrNewer) {
    sessionConfig = [NSURLSessionConfiguration backgroundSessionConfigurationWithIdentifier:identifier];
    request.timeoutInterval = timeout;
}
else {
    sessionConfig = [NSURLSessionConfiguration backgroundSessionConfiguration:identifier];
    sessionConfig.timeoutIntervalForRequest = timeout;
}

_backgroundSession = [NSURLSession sessionWithConfiguration:sessionConfig delegate:self delegateQueue:nil];

NSURLSessionDownloadTask *downloadTask = [_backgroundSession downloadTaskWithRequest:request];