ios - How to get data from the POST json -


i creating login page once user enters username password data send api , if entered data correct returns success . if result success, need user key of user returned serverin form : 

{     "status_desc": "success",     "status_code": 1,     "email": "keshurai1024@gmail.com",     "api_token": "mqbraok1zsdasdasd4j3m"  }

now need store api token. trying function not working - 

@ibaction func signinbtnpressed(_ sender: any) {      let email : string! = self.usernamefield.text     let password : string! = self.passwordfield.text      var request = urlrequest(url: url(string: "\(url_base)\(auth)\(login)")!)     request.httpmethod = "post"     let poststring = "email=\(email!)&&password=\(password!)"     request.httpbody = poststring.data(using: .utf8)     let task = urlsession.shared.datatask(with: request) { data, response, error in         guard let data = data, error == nil else {                                                 // check fundamental networking error             print("error=\(string(describing: error))")             print("cant run")             return         }          if let httpstatus = response as? httpurlresponse, httpstatus.statuscode != 200 {           // check http errors             print("statuscode should 200, \(httpstatus.statuscode)")             print("response = \(string(describing: response))")             print("\(email)")             print("\(password)")           }         else {         let responsestring = string(data: data, encoding: .utf8)         print("responsestring = \(string(describing: responsestring))")             print("\(url_base)\(auth)\(login)/?\(poststring)")             alamofire.request("\(url_base)\(auth)\(login)/?\(poststring)" , method : .post).responsejson { response in         let result = response.result         if let dict = result.value as? dictionary<string,anyobject>         {             print(dict)         let usertoken = dict["api_token"] as! string             print(usertoken)             }              }         }     }     task.resume() }

please tell me mistake m doing , how can correct ..

try parsing data json:

 if let jsondata = data {       {            let jsonresult = try jsonserialization.jsonobject(with: jsondata, options: .allowfragments) as? [string : any]            print(jsonresult)            print(jsonresult?["api_token"])             //here saving aoi_token userdefaults:            userdefaults.standard.setvalue(token, forkey: "api_token")            print("\(userdefaults.standard.value(forkey: "api_token")!)")     } catch {            print("json processing failed")     } }

and store api_token need use userdefaults:

userdefaults.standard.setvalue(token, forkey: "api_token") print("\(userdefaults.standard.value(forkey: "api_token")!)")

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