(.NET Core C#) CardConnect Void

Demonstrates how to send a CardConnect void request.

The void service cancels a transaction that is in either "Authorized" or "Queued for Capture" status.. ...

See https://developer.cardconnect.com/cardconnect-api#void

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// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Chilkat.Http http = new Chilkat.Http();
bool success;

http.BasicAuth = true;
http.Login = "API_USERNAME";
http.Password = "API_PASSWORD";

// Build and send the following JSON:

// The "retref" is the value returned in the JSON response for the Authorization request.

// {
//     "retref":"112989260941",
//     "merchid":"MERCHANT_ID"
// }

Chilkat.JsonObject json = new Chilkat.JsonObject();
json.UpdateString("retref","112989260941");
json.UpdateString("merchid","MERCHANT_ID");

string url = "https://<site>.cardconnect.com:<port>/cardconnect/rest/void";
string responseStr = http.PutText(url,json.Emit(),"utf-8","application/json",false,false);
if (http.LastMethodSuccess == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

// A response status of 200 indicates potential success.  The JSON response body
// must be examined to determine if it was truly successful or an error.
Debug.WriteLine("response status code = " + Convert.ToString(http.LastStatus));

Chilkat.JsonObject jsonResp = new Chilkat.JsonObject();
jsonResp.Load(responseStr);
jsonResp.EmitCompact = false;

Debug.WriteLine("response JSON:");
Debug.WriteLine(jsonResp.Emit());

// A successful response looks like this:

// {
//   "authcode": "REVERS",
//   "respproc": "FNOR",
//   "amount": "0.00",
//   "resptext": "Approval",
//   "currency": "USD",
//   "retref": "112989260941",
//   "respstat": "A",
//   "respcode": "00",
//   "merchid": "496160873888"
// }

// Use this online tool to generate parsing code from sample JSON: 
// Generate Parsing Code from JSON

string authcode = jsonResp.StringOf("authcode");
string respproc = jsonResp.StringOf("respproc");
string amount = jsonResp.StringOf("amount");
string resptext = jsonResp.StringOf("resptext");
string currency = jsonResp.StringOf("currency");
string retref = jsonResp.StringOf("retref");
string respstat = jsonResp.StringOf("respstat");
string respcode = jsonResp.StringOf("respcode");
string merchid = jsonResp.StringOf("merchid");