Save file to Documents directory

- (void)download:(NSDictionary *)json
{
    //NSLog(@"download %@", json);
    // {action: "download", url: "http://demo.tbwa-paris.com/test/file.json", file: "/json/file.json"}


    //*
    // 1
    NSString *urlToDownload = @"http://purprod.fr/assets/js/slider.json";

    NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
    AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];

    NSURL *URL = [NSURL URLWithString:urlToDownload];
    NSURLRequest *request = [NSURLRequest requestWithURL:URL];

    NSURLSessionDownloadTask *downloadTask = [manager downloadTaskWithRequest:request progress:nil destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {

        NSURL *documentsDirectoryURL = [[NSFileManager defaultManager] URLForDirectory:NSDocumentDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil];



        //NSURL *documentsDirectoryURL  = [NSURL URLWithString:@"/var/mobile/Applications/271DB222-E103-4C8A-904A-BE0C4C682BBD/NinaCrm.app/dist"];

        return [documentsDirectoryURL URLByAppendingPathComponent:[response suggestedFilename]];
    } completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) {

        NSLog(@"File downloaded to: %@", [filePath absoluteString]);



        [self callback:json data:@{@"url": [filePath absoluteString]}];


        NSArray       *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
        NSString  *documentsDirectory = [paths objectAtIndex:0];
        [self listFileAtPath:documentsDirectory];

    }];
    [downloadTask resume];

     //*/

    //    /var/mobile/Applications/271DB222-E103-4C8A-904A-BE0C4C682BBD/Documents/meteo.json
    //    /var/mobile/Applications/271DB222-E103-4C8A-904A-BE0C4C682BBD/NinaCrm.app//dist/

    //*
    //download the file in a seperate thread.
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
        NSLog(@"Downloading Started");
        NSString *urlToDownload = @"http://api.openweathermap.org/data/2.5/weather?q=London,uk";
        NSURL  *url = [NSURL URLWithString:urlToDownload];
        NSData *urlData = [NSData dataWithContentsOfURL:url];

        if ( urlData )
        {
            NSArray       *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
            NSString  *documentsDirectory = [paths objectAtIndex:0];
            NSLog(@"documentsDirectory : %@", documentsDirectory);

            NSString  *filePath = [NSString stringWithFormat:@"/var/mobile/Applications/271DB222-E103-4C8A-904A-BE0C4C682BBD/Documents/new.json"];

            //saving is done on main thread
            dispatch_async(dispatch_get_main_queue(), ^{
                [urlData writeToFile:filePath atomically:YES];
                NSLog(@"File Saved to filePath : %@", filePath);





                [self callback:json data:@{@"url": filePath}];
            });
        }

    });
    // */

}