AFNetworking with AFJSONRequestOperation and filedata never completes - iphone

Question

I'm using AFNetworking to post json data to my webservice and get a json response back. However now I also want to add multipart formdata to these POST's. If I do this (even without the parameters I added first) the completion block never fires. The progress block DOES fire and I can see that the file uploads correctly.
Does anybody have any experience posting images like this with AFNetworking? I am using the latest AFNetworking source / version.
This is my initial code for posting a dictionary with json in it. This works fine.
NSMutableDictionary *postdata = [[NSMutableDictionary alloc] init];
[postdata setObject:[postdictionary JSONString] forKey:#"request"];
NSMutableURLRequest *jsonRequest = [httpClient requestWithMethod:#"POST"
path:path
parameters:postdata];
AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:jsonRequest success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {// Success} failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {// Failure }];
[operation start];
This is the version of the code for submitting an image (doesn't work)
NSMutableURLRequest *jsonRequest jsonRequest = [httpClient multipartFormRequestWithMethod:#"POST" path:path parameters:postdata constructingBodyWithBlock: ^(id <AFMultipartFormData> formData) {
[formData appendPartWithFileData:imageData name:#"photo" fileName:#"photo.jpg" mimeType:#"image/jpeg"];
[formData throttleBandwidthWithPacketSize:5000 delay:0.1];
}];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:jsonRequest];
[operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) {
NSLog(#"Sent %lld of %lld bytes", totalBytesWritten, totalBytesExpectedToWrite);
}];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"Upload succes");
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Upload failed");
}];
[operation start];

Answer 1

I use this code on a number of apps and havent had any problems with it (note I am using the AFJSONRequestOperation and AFRestClient)
set the request
// I have a shared singleton in a separate file APIClient.h
AFRESTClient *httpClient = [APIClient sharedClient];
NSURLRequest *request = [httpClient multipartFormRequestWithMethod:#"POST" path:method parameters:params constructingBodyWithBlock: ^(id <AFMultipartFormData> formData)
{[formData appendPartWithFileData:imageData
name:#"image"
fileName:#"image.png"
mimeType:#"image/png"];
}];
then the operation,
AFJSONRequestOperation *operation = [[AFJSONRequestOperation alloc] initWithRequest:request];
my progress block
[operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) {
NSLog(#"Sent %lld of %lld bytes", totalBytesWritten, totalBytesExpectedToWrite);
CGFloat progress = ((CGFloat)totalBytesWritten) / totalBytesExpectedToWrite * 100;
[SVProgressHUD showProgress:50 status:[NSString stringWithFormat:#"%0.1f %%", progress]];
}];
success block (my API returns a stat -ok or fail, then the data (same as flickr API)
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id response) {
NSLog(#"response string: %#", operation.responseString);
NSString *resultStat = [response objectForKey:#"stat"];
if ([resultStat isEqualToString:#"ok"]) {
//success
// do something with your data that is returned from the API
} else {
//error
NSLog(#"Data Error: %#", response);
}
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", [error localizedDescription]);
}];
[httpClient enqueueHTTPRequestOperation:operation];

Answer 2

cannot see any issues with your code, few possibilities:
try setting short timeout interval and check if request completes
[request setTimeoutInterval:5];
also try commenting out the throttling line and see if it changes anything