AFNetworking 2: How to cancel a AFHTTPRequestOperationManager request? - afnetworking-2

Question

I migrated my networking functionality from AFNetworking to AFNetworking v2 and instead of AFHttpClient I am using AFHTTPRequestOperationManager to support iOS6 as well.
My issue is that while in AFHttpClient there was the functionality to cancel a pending request using the
- (void)cancelAllHTTPOperationsWithMethod:(NSString *)method path:(NSString *)path;
method, in the AFHTTPRequestOperationManager there is no such obvious method.
What I've done up to now is subclassing AFHTTPRequestOperationManager and declaring an iVar
AFHTTPRequestOperation *_currentRequest;
When I make a request the code is something like
- (void)GetSomething:(NSInteger)ID success:(void (^)(MyResponse *))success failure:(void (^)(NSError *))failure
{
_currentRequest = [self GET:#"api/something" parameters:#{#"ID": [NSNumber numberWithInteger:ID]} success:^(AFHTTPRequestOperation *operation, id responseObject) {
MyResponse *response = [MyResponse responseFromDictionary:responseObject];
success(response);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
failure(error);
}];
}
and I have a
- (void)cancelCurrentRequest;
methods which all that does is
- (void)cancelCurrentRequest
{
if(_currentRequest) {
[_currentRequest cancel]; _currentRequest = nil;
}
}
Now, I don't think this is good practice and when the method is called I get (NSURLErrorDomain error -999.) which is why I need some advice on getting this done correctly.
Thank you in advance.

Answer 1

Objective-C
[manager.operationQueue cancelAllOperations];
Swift
manager.operationQueue.cancelAllOperations()

Answer 2

You don't have to subclass AFHTTPRequestOperationManager , because when you send request, AFHTTPRequestOperation returns from the
- (AFHTTPRequestOperation *)GET:(NSString *)URLString
parameters:(id)parameters
success:(void (^)(AFHTTPRequestOperation *operation, id responseObject))success
failure:(void (^)(AFHTTPRequestOperation *operation, NSError *error))failure
simply save it somewhere or make static and then perform cancel when the request need to be canceled.
Example:
- (void)sendRequestToDoSomething
{
static AFHTTPRequestOperation *operation;
if(operation) //cancel operation if it is running
[operation cancel];
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
//configure manager here....
operation = [manager GET:urlString parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) {
//do something here with the response
operation = nil;
} failure:^(AFHTTPRequestOperation *op, NSError *error) {
{
//handle error
operation = nil;
}