(Lianja) 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.

loHttp = createobject("CkHttp")

loHttp.BasicAuth = .T.
loHttp.Login = "API_USERNAME"
loHttp.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"
// }

loJson = createobject("CkJsonObject")
loJson.UpdateString("retref","112989260941")
loJson.UpdateString("merchid","MERCHANT_ID")

lcUrl = "https://<site>.cardconnect.com:<port>/cardconnect/rest/void"
lcResponseStr = loHttp.PutText(lcUrl,loJson.Emit(),"utf-8","application/json",.F.,.F.)
if (loHttp.LastMethodSuccess = .F.) then
    ? loHttp.LastErrorText
    release loHttp
    release loJson
    return
endif

// 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.
? "response status code = " + str(loHttp.LastStatus)

loJsonResp = createobject("CkJsonObject")
loJsonResp.Load(lcResponseStr)
loJsonResp.EmitCompact = .F.

? "response JSON:"
? loJsonResp.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

lcAuthcode = loJsonResp.StringOf("authcode")
lcRespproc = loJsonResp.StringOf("respproc")
lcAmount = loJsonResp.StringOf("amount")
lcResptext = loJsonResp.StringOf("resptext")
lcCurrency = loJsonResp.StringOf("currency")
lcRetref = loJsonResp.StringOf("retref")
lcRespstat = loJsonResp.StringOf("respstat")
lcRespcode = loJsonResp.StringOf("respcode")
lcMerchid = loJsonResp.StringOf("merchid")


release loHttp
release loJson
release loJsonResp