AFNetworking: enqueueBatchOfHTTPRequestOperations issue with completion block

Question

I use this AFNetworking method to start multiple requests at once:

- (void)enqueueBatchOfHTTPRequestOperations:(NSArray *)operations 
                              progressBlock:(void (^)(NSUInteger numberOfCompletedOperations, NSUInteger totalNumberOfOperations))progressBlock 
                            completionBlock:(void (^)(NSArray *operations))completionBlock

One of them is a AFJSONRequestOperation. The problem is that the success-block of this JSON operation is executed after the completion-block of the batch. The reason is: AFJSONRequestOperation has an internal dispatch queue for JSON processing. So the JSON data is still in processing while the completion block is called.

Question: How can execute code in the completion block after the success block of the JSON operation has been called?

I tried to dispatch a code block on the main queue but that didn't help.

Answer 1

If it's possible, the simplest solution might be just to move your processing code from the success block of each operation to the completion block of the whole batch.

You have the NSArray *operations available in the completion block, you can iterate through the operations and look for:

for(AFHTTPRequestOperation *operation in operations){
   if(operation.response.statusCode == 200){
      //Do something with the response
   }else{
     //Handle the failure
   }
}

You also have the url address for each operation available through the operation.request.URL property if you need to preform different actions