AFNetworking: Can't get the response string from AFHTTPRequestOperation - ios

Question

Anyone?): I'm having a problem that has made me scratch my head for the last 2 hours, and it most likely a very simple stupid thing I'm missing. I Keep getting a building error when I Call the response string from the operation # AFNetworking... Like there is NO SUCH PROPERTY....
Please Take a look at my code and Explain me what did I Mess up This time :p.. THanks :)
NSDictionary* paramDict = [NSDictionary dictionaryWithObjectsAndKeys:WebServicemd5Value, WebSermd5Variable, nil]
;
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:[NSURL URLWithString:webServiceURL]];
[httpClient defaultValueForHeader:#"Accept"];
[httpClient postPath:#"method" parameters:paramDict success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"Response data: %#", responseObject);
NSLog(#"Reponse String: %#", operation);
// Printing operation will show me the operation Dictionary, including the reponse field, // but when I Directly call operation.response, the Compiler won't Build, stating that // "Property not found for AFHTTPRequestOperation".... WEIRDEST THING EVER, right?
NSString* responseString = [NSString stringWithUTF8String:[responseObject bytes]];
//.. Rest o f my Code....
}failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error retrieving data: %#", error);
}];

Answer 1

Hernan, if you expect an NSDictionary from a JSON response you should consider using AFJSONRequestOperation, because you get a JSON dictionary in your success callback. Anyway, if you want to get a dictionary from your responseObject, try to use the following code:
NSError *error = nil;
NSDictionary *JSON = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingAllowFragments error:&error];
if (error) {
NSLog(#"Error serializing %#", error);
}
NSLog(#"Dictionary %#", JSON);

Answer 2

I believe the response string is inside the "operation" object, so something like:
...
}failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error retrieving data: %#", operation.responseString);
}];

Answer 3

While attempting to retrieve content from meetup.com api using AFNetworking (kudos to Mattt T. for a great framework, btw), ran into the same error - "The operation couldn't be completed. (Cocoa error 3840)". Realized that the issue I was having was with the response data containing a Swedish character 'Ø', resulting in the parsing error. The solution was to include the header 'Accept-Charset: utf-8' in the initialization of the AFNetworking client. Fixed!
- (id)initWithBaseURL:(NSURL *)url {
self = [super initWithBaseURL:url];
if (!self) {
return nil;
}
[self registerHTTPOperationClass:[AFJSONRequestOperation class]];
// Accept HTTP Header; see http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.1
[self setDefaultHeader:#"Accept" value:#"application/json"];
[self setDefaultHeader:#"Accept-Charset" value:#"utf-8"];
return self;
}