upload image to web service from database using xcode - ios

Question

I want to upload a image from phone to web service my link is like below as sample
"http://sample.com/upload_image.php"
my code is as below for post:
-(IBAction) post:(id) sender
{
count = 0;
self.progress = [[UIProgressView alloc] initWithProgressViewStyle:UIProgressViewStyleDefault];
self.progress.center = self.view.center;
progress.hidden = NO;
[self.view addSubview:self.progress];
nmyTimer = [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:#selector(updateUI:) userInfo:nil repeats:YES];
NSString *filename = [NSString alloc];
filename = [self randomStringWithLength:5];
NSData *imageData = UIImageJPEGRepresentation(imageView.image, 100);
NSError *error;
NSData *searchData;
NSHTTPURLResponse *response;
// setting up the URL to post to
NSString *urlString = #"http://dev9.edisbest.com/upload_image.php";
// setting up the request object now
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:#"POST"];
/*
add some header info now
we always need a boundary when we post a file
also we need to set the content type
You might want to generate a random boundary.. this is just the same
as my output from wireshark on a valid html post
*/
NSString *boundary = [NSString stringWithString:#"---------------------------14737809831466499882746641449"];
NSString *contentType = [NSString stringWithFormat:#"multipart/form-data; boundary=%#",boundary];
[request addValue:contentType forHTTPHeaderField: #"Content-Type"];
/*
now lets create the body of the post
*/
NSMutableData *body = [NSMutableData data];
[body appendData:[[NSString stringWithFormat:#"\r\n--%#\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:#"Content-Disposition: form-data; name=\"userfile\"; filename=\"%#.jpg\"\r\n",filename] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:#"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:imageData]];
[body appendData:[[NSString stringWithFormat:#"\r\n--%#--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
// setting the body of the post to the reqeust
searchData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSLog(#"%#",response);
NSString *imageName;
imageName = [[NSString alloc] initWithData:searchData encoding:NSUTF8StringEncoding];
NSLog(#"retrun Result of Upload Photo.. %#",imageName);
[request setHTTPBody:body];
// now lets make the connection to the web
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *error)
{ NSLog(#"Finished with status code: %i", [(NSHTTPURLResponse *)response statusCode]); }];
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
///self.returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
NSLog(#"%#",returnString);
}
when i build and run i will be asked to choose image and when i select an image to upload
I got a message as the following
**[Switching to process 553 thread 0x4e03]
2015-04-28 12:08:12.856 image-video-upload[553:207] (null)
2015-04-28 12:08:12.857 image-video-upload[553:207] retrun Result of Upload Photo..
2015-04-28 12:08:12.889 image-video-upload[553:207] Finished with status code: 0**
Above message shown in my console and crashed

Answer 1

Try this..
UIImage *image=[UIImage imageNamed:#"i3.png"];
NSData *imageData = UIImageJPEGRepresentation(image, 1.0);
NSString *encodedString = [imageData base64EncodedStringWithOptions:0];
NSMutableDictionary *dictionnary = [NSMutableDictionary dictionary];
[dictionnary setObject:encodedString forKey:#"imageData"];
NSError *error = nil;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dictionnary
options:kNilOptions
error:&error];
NSString *urlString = #"http://Your url";
NSURL *url = [NSURL URLWithString:urlString];
// Prepare the request
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
[request setValue:#"json" forHTTPHeaderField:#"Data-Type"];
[request setValue:[NSString stringWithFormat:#"%lu", (unsigned long)[jsonData length]] forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody:jsonData];
NSError *errorReturned = nil;
NSURLResponse *theResponse =[[NSURLResponse alloc]init];
NSData *data = [NSURLConnection sendSynchronousRequest:request
returningResponse:&theResponse
error:&errorReturned];

Answer 2

Here is the code from my project to upload image
// create request
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];
[request setHTTPShouldHandleCookies:NO];
[request setTimeoutInterval:30];
[request setHTTPMethod:#"POST"];
// set Content-Type in HTTP header
NSString *contentType = [NSString stringWithFormat:#"multipart/form-data; boundary=%#", BoundaryConstant];
[request setValue:contentType forHTTPHeaderField: #"Content-Type"];
// post body
NSMutableData *body = [NSMutableData data];
// add params (all params are strings)
for (NSString *param in _params) {
[body appendData:[[NSString stringWithFormat:#"--%#\r\n", BoundaryConstant] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:#"Content-Disposition: form-data; name=\"%#\"\r\n\r\n", param] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:#"%#\r\n", [_params objectForKey:param]] dataUsingEncoding:NSUTF8StringEncoding]];
}
// add image data
NSData *imageData = UIImageJPEGRepresentation(imageToPost, 1.0);
if (imageData) {
[body appendData:[[NSString stringWithFormat:#"--%#\r\n", BoundaryConstant] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:#"Content-Disposition: form-data; name=\"%#\"; filename=\"image.jpg\"\r\n", FileParamConstant] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:#"Content-Type: image/jpeg\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:imageData];
[body appendData:[[NSString stringWithFormat:#"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
}
[body appendData:[[NSString stringWithFormat:#"--%#--\r\n", BoundaryConstant] dataUsingEncoding:NSUTF8StringEncoding]];
// setting the body of the post to the reqeust
[request setHTTPBody:body];
// set the content-length
NSString *postLength = [NSString stringWithFormat:#"%d", [body length]];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
// set URL
[request setURL:requestURL];