IOS SDK Post request using NSURLConnection

[Abin Cheriyan]

0down votefavorite

Below is my code for sending a post request consisting of 4 base64Image data to my server. NSString *postURL = [NSString stringWithFormat:@"name=%@&mobile=%@&email=%@&bday=%@&image=%@&img1=%@&img2=%@&img3=%@",@"abin",@123",@"abc@gmail.com",@"01-01-1990",[base64Value]image,[base64 value] of img1,[base64 value] of img2,[base64 value] of img3"]; NSData *postData = [postURL dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]; NSString *postLength = [NSString stringWithFormat:@"%lu",(unsigned long)[postData length]]; NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init]; [request setURL:[NSURL URLWithString:@"MY_URL"]]; [request setHTTPMethod:@"POST"]; [request setValue:postLength forHTTPHeaderField:@"Content-Length"]; [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"]; [request setHTTPBody:postData]; conn = [[NSURLConnection alloc]initWithRequest:request delegate:self]; Here all the image values img1,image,image are base64 values. While sending this request to the server, 6 out of 10 times, it gets failed. Over Wi-Fi success rate is high and over Mobile Data it is very low. Image conversion is done using the below code: - (NSString *)encodeToBase64String:(UIImage *)image { NSData *data = UIImageJPEGRepresentation(image, 1.0); NSData *imageBase64Data = [data base64EncodedDataWithOptions:0]; NSString *imageBase64String = [[NSString alloc] initWithData:imageBase64Data encoding: NSUTF8StringEncoding]; return imageBase64String; } Any once please help me with some idea to successfully send multiple images to Server using POST request even when the network connectivity is slow.(2G)

[Jesse Tayler]

On Sep 29, 2015, at 7:58 AM, Abin Cheriyan <abinch...@gmail.com> wrote:

While sending this request to the server, 6 out of 10 times, it gets failed.

what is the error?