swift3 - The error is "Error Domain=NSCocoaErrorDomain Code=3840 "No value." UserInfo={NSDebugDescription=No value.}" -


i'm learning json. have problem parsing json url. error :

"error domain=nscocoaerrordomain code=3840 "no value." userinfo={nsdebugdescription=no value.}"

json valid - i've checked. structure of json:

and code:

import uikit  @ibaction func signintapped(_ sender: uibutton) {     if validate() == true     {         let myurl = url(string: "")         var myrequest = urlrequest(url: myurl!)         myrequest.httpmethod = "post"         myrequest.addvalue("application/json", forhttpheaderfield: "content-type")          let poststring = "{\"login_username\":\"xyz\",\"login_password\":\"abc\"}"         myrequest.httpbody = (poststring string).data(using: .utf8)         urlsession.shared.datatask(with: myrequest, completionhandler: { (data:data?, response:urlresponse?, error:error?) -> void in             if error != nil             {                 print("fail")                 return             }              //print response object             print("*************response = \(response)")              //print response body             let responsestring = string(data: data!, encoding: string.encoding.utf8)             print("**************response data \(responsestring)")              {                 let json = try jsonserialization.jsonobject(with: data!, options: .mutablecontainers) as? nsdictionary                 print ("1")                  if let parsejson = json {                      let username = parsejson["login_username"] as? string                     print ("2")                     if( username != nil) {                      }                     else                     {                         let errormessage = parsejson["message"] as? string                         print ("3")                     }                 }             }             catch             {                 print(error)             }         }).resume()     } }


Comments

Post a Comment

Popular posts from this blog

aws api gateway - SerializationException in posting new Records via Dynamodb Proxy Service in API -

i getting "__type": "com.amazon.coral.service#serializationexception" as reply in postman & in test console in api gateway trying post record directly dynamodb using api proxy services.. referring aws article - https://aws.amazon.com/blogs/compute/using-amazon-api-gateway-as-a-proxy-for-dynamodb/ here's mapping { "tablename": "tablenamegoeshere", "item": { "id" : "$context.requestid" "eventname" : "$input.path('$.eventname')", "timestamp" : $input.path('$.timestamp'), "answers": "$util.parsejson($input.path('$.answers'))" } } update: did asked ... , worked if try add array of json objects gives me above same error - here's trying now. please - couldnt find on google well #set($inputroot = $input.path('$')) { "tablename": "answer", "item": {
Read more

asp.net - Problems sending emails from forum -

i have been redesigning site has message board, has been written guy looked after site. it has few problems , written in .asp , uses .mdb files database. you can see whole thing here . feel free post if helps, test thing have set using original files , new database. the basic problem when posts message, supposed email sent them, have posted it. when replies, originator supposed message, replier has been posted. i’d have thought @ point in process there should script/file in postmessage.asp? the postmessage.asp page below. <% option explicit %> <!-- #include virtual="common/adovbs.inc" --> <html> <head> <meta http-equiv="content-type" content="text/html; charset=windows-1252"> <meta name="generator" content="microsoft frontpage 4.0"> <meta name="progid" content="frontpage.editor.document"> <title>new page 2</title> <base target="_self"
Read more