Swift JSON error : Could not cast value of type '__NSDictionaryM' to 'NSArray'

Question

when decoding JSON from webservice(API) i get error :

Could not cast value of type \'__NSDictionaryM\' (0x1037ad8a8) to \'NSArray\' (0x1037ad470). 
         


        

Answer 1

try cache for Serialization

        do {
            if let json = try JSONSerialization.jsonObject(with: data, options: .allowFragments) as? [String : Any] { // as? data type
                if let otherDict = json["dataKey"] as? [String : Any] {
                    //do something
                }
            }
        } catch {
            // can't json serialization
        }