get responseObject on failure block AFNetworking 3.0

Question

how can I get the response string from failure block in AFNetworking 3.x,

In the 2.x version the way to do it was:

[manager GET:path parameters:param         


        

Answer 1

let responseData:NSData = (error as NSError).userInfo[AFNetworkingOperationFailingURLResponseDataErrorKey] as! NSData
let s :String = String(data: responseData as Data, encoding: String.Encoding.utf8)!

For Swift 3