Alamofire http json request block ui

Question

I\'ve been creating a function which retrieve objects from a JSON script. I\'ve chosen for this to use alamofire for async request and swiftyJSON for easy parsing. However i see

Answer 1

Swift5 An update to Stefan Salatic's answer, if you are parsing a large amount of json data from the Alamofire response it is better you use a global dispatch Queue and if for any reason you need to update the UI in the main thread switch to DispatchQueue.main.async.

So a sample code will look like this.

AF.request(UrlGetLayers, method: .post, parameters: parameters, headers: headers)
            .responseJSON { response in
             DispatchQueue.global(qos: .background).async {
                
                //parse your json response here
                
                //oops... we need to update the main thread again after parsing json
                DispatchQueue.main.async {
                    
                }
                
             }

        }