ASIHTTP Request cancelled error in iphone sdk - iphone

Question

I am uploading multiple images data using ASIHTTP request method. All Images uploaded successfully but for only last image ASIHttp request goes fail. I tried a lot but i can't get anymore.
Can someone help me?
My code is as follow:
for(int i=0;i<[arySteps count];i++)
{
NSMutableArray *StepDetail=[[NSMutableArray alloc] initWithArray:[DatabaseAccess getAddSteps:str]];
if([[[StepDetail objectAtIndex:0] valueForKey:#"s_image"] length]!=0)
{
NSMutableArray *imgary=[[[[StepDetail objectAtIndex:0] valueForKey:#"s_image"] componentsSeparatedByString:#","] mutableCopy];
imagedata1=[[NSData alloc] init];
imagedata2=[[NSData alloc] init];
imagedata3=[[NSData alloc] init];
for (int i=0; i<[imgary count]; i++)
{
if(i==0)
{
NSString *filename=[NSString stringWithFormat:#"%#.jpeg",[imgary objectAtIndex:0]];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *filePath = [documentsDirectory stringByAppendingPathComponent:filename];
NSURL *movieURL = [NSURL fileURLWithPath:filePath];
imagedata1=[NSData dataWithContentsOfURL:movieURL];
NSLog(#"%#",imagedata1);
}
else if(i==1)
{
NSString *filename=[NSString stringWithFormat:#"%#.jpeg",[imgary objectAtIndex:1]];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *filePath = [documentsDirectory stringByAppendingPathComponent:filename];
NSURL *movieURL = [NSURL fileURLWithPath:filePath];
imagedata2=[NSData dataWithContentsOfURL:movieURL];
NSLog(#"%#",imagedata2);
}
else if(i==2)
{
NSString *filename=[NSString stringWithFormat:#"%#.jpeg",[imgary objectAtIndex:2]];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *filePath = [documentsDirectory stringByAppendingPathComponent:filename];
NSURL *movieURL = [NSURL fileURLWithPath:filePath];
imagedata3=[NSData dataWithContentsOfURL:movieURL];
NSLog(#"%#",imagedata3);
}
}
NSString *strurl=[NSString stringWithFormat:#"http://inst.niftysol.com/app/webroot/webservices/test.php?said=%d&stepid=%#", appdel.idPARENTID,s_id_live];
[self setHttprequest:[ASIFormDataRequest requestWithURL:[NSURL URLWithString:strurl]]];
//NSString *userid=[NSString stringWithFormat:#"%d",appdel.idUID];
// [httprequest setPostValue:userid forKey:#"s_user_id"];
[httprequest setShouldContinueWhenAppEntersBackground:YES];
[httprequest setDelegate:self];
[httprequest setDidFinishSelector:#selector(uploadFinished:)];
[httprequest setDidFailSelector:#selector(uploadFailed:)];
[httprequest setData:imagedata1 withFileName:#"1.jpeg" andContentType:#"image/jpeg" forKey:#"userfile1"];
[httprequest setData:imagedata2 withFileName:#"2.jpeg" andContentType:#"image/jpeg" forKey:#"userfile2"];
[httprequest setData:imagedata3 withFileName:#"3.jpeg" andContentType:#"image/jpeg" forKey:#"userfile3"];
countupload=countupload+1;
[httprequest startAsynchronous];
}
}
In above code I've got all images data properly but for last image request goes fail. I get the error:
Error Domain=ASIHTTPRequestErrorDomain Code=4 "The request was cancelled" UserInfo=0x96fbfe0 {NSLocalizedDescription=The request was cancelled}

Answer 1

You should switch to AFNetworking if possible, very easy to integrate. Though answer your question you should switch to network queue for ASIHTTPRequest.
Declare ASINetworkQueue *networkQueue; in header file, declare property #property (retain) ASINetworkQueue *networkQueue; and synthesize it as well in implementation file.
-(void)doUploadOperation //You can call this method for your upload operation.
{
[[self networkQueue] cancelAllOperations];
// Creating a new queue each time we use it means we don't have to worry about clearing delegates or resetting progress tracking
[self setNetworkQueue:[ASINetworkQueue queue]];
[[self networkQueue] setDelegate:self];
[[self networkQueue] setRequestDidFinishSelector:#selector(requestFinished:)];
[[self networkQueue] setRequestDidFailSelector:#selector(requestFailed:)];
[[self networkQueue] setQueueDidFinishSelector:#selector(queueFinished:)];
int i;
for (i=0; i<[arySteps count]; i++)
{
//First create image data
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *filename=[NSString stringWithFormat:#"%#.jpeg",[imgary objectAtIndex:i]];
NSString *filePath = [documentsDirectory stringByAppendingPathComponent:filename];
NSURL *movieURL = [NSURL fileURLWithPath:filePath];
NSData *imagedata=[NSData dataWithContentsOfURL:movieURL];
//Create request and add to network queue
NSString *strurl=[NSString stringWithFormat:#"http://inst.niftysol.com/app/webroot/webservices/test.php?said=%d&stepid=%#", appdel.idPARENTID,s_id_live];
ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:[NSURL URLWithString:strurl]];
[request setShouldContinueWhenAppEntersBackground:YES];
[request setData:imagedata withFileName:[NSString stringWithFormat:#"%d.jpeg",i+1] andContentType:#"image/jpeg" forKey:[NSString stringWithFormat:#"userfile%d",i+1]];
request.tag = i;
[[self networkQueue] addOperation:request];
}
[[self networkQueue] go];
}
- (void)requestFinished:(ASIHTTPRequest *)request
{
if ([[self networkQueue] requestsCount] == 0) {
[self setNetworkQueue:nil];
}
//... Handle success
NSLog(#"Individual Request finished");
}
- (void)requestFailed:(ASIHTTPRequest *)request
{
if ([[self networkQueue] requestsCount] == 0) {
[self setNetworkQueue:nil];
}
NSLog(#"Individual Request failed");
}
- (void)queueFinished:(ASINetworkQueue *)queue
{
if ([[self networkQueue] requestsCount] == 0) {
[self setNetworkQueue:nil];
}
NSLog(#"Whole Queue finished");
}
Hope this helps. Don't hesitate to message if you need more help.