// do something here

    NSMutableString *fileURL = [NSMutableString stringWithString:THE_URL];
    NSURL *url = [NSURL URLWithString:fileURL];
    __block ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];
    [request setDelegate:self];
    [request addRequestHeader:@"Content-Type" value:@"application/json; charset=utf-8"];
    [request setRequestMethod:@"POST"];
    [request setPostValue:theID forKey:@"id"];
    [request setCompletionBlock:^{
        NSLog(@"success with response string %@", request.responseString);
    }];
 
    [request setFailedBlock:^{
        NSLog(@"error: %@", request.error.localizedDescription);
    }];
 
    [request startAsynchronous];

NSMutableString *fileURL = [NSMutableString stringWithString:THE_URL]; NSURL *url = [NSURL URLWithString:fileURL]; __block ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url]; [request setDelegate:self]; [request addRequestHeader:@"Content-Type" value:@"application/json; charset=utf-8"]; [request setRequestMethod:@"POST"]; [request setPostValue:theID forKey:@"id"]; [request setCompletionBlock:^{ NSLog(@"success with response string %@", request.responseString); }]; [request setFailedBlock:^{ NSLog(@"error: %@", request.error.localizedDescription); }]; [request startAsynchronous];

    NSMutableString *fileURL = [NSMutableString stringWithString:THE_URL];
    AFHTTPClient *client = [[[AFHTTPClient alloc] initWithBaseURL:url] autorelease];
    NSDictionary *params = @ { @"id" : theID };
    NSMutableURLRequest *request = [client requestWithMethod:@"POST" path:fileURL parameters:params];
    AFHTTPRequestOperation *op = [[[AFHTTPRequestOperation alloc] initWithRequest:request] autorelease];
    [op setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
        NSLog(@"success with response string %@", operation.responseString);
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        NSLog(@"error: %@", error.localizedDescription);
    }];
    [op start];

NSMutableString *fileURL = [NSMutableString stringWithString:THE_URL]; AFHTTPClient *client = [[[AFHTTPClient alloc] initWithBaseURL:url] autorelease]; NSDictionary *params = @ { @"id" : theID }; NSMutableURLRequest *request = [client requestWithMethod:@"POST" path:fileURL parameters:params]; AFHTTPRequestOperation *op = [[[AFHTTPRequestOperation alloc] initWithRequest:request] autorelease]; [op setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) { NSLog(@"success with response string %@", operation.responseString); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"error: %@", error.localizedDescription); }]; [op start];