(Lianja) Shippo POST to Transaction Endpoint

Demonstrates how to POST to the Transaction endpoint with your Rate object_id to purchase your international shipping label.

For more information, see https://goshippo.com/docs/international/

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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")

// Implements the following CURL command:

// curl https://api.goshippo.com/transactions \
//     -H "Authorization: ShippoToken <API_TOKEN>" \
//     -d rate="ec6143e746094bcab1bdc4c17600dabf"
//     -d label_file_type="PDF"
//     -d async=false

loReq = createobject("CkHttpRequest")
loReq.HttpVerb = "POST"
loReq.Path = "/transactions"
loReq.ContentType = "application/x-www-form-urlencoded"
loReq.AddParam("rate","ec6143e746094bcab1bdc4c17600dabf")
loReq.AddParam("label_file_type","PDF")
loReq.AddParam("async","false")

loReq.AddHeader("Authorization","ShippoToken <API_TOKEN>")

loResp = loHttp.PostUrlEncoded("https://api.goshippo.com/transactions",loReq)
if (loHttp.LastMethodSuccess = .F.) then
    ? loHttp.LastErrorText
    release loHttp
    release loReq
    return
endif

loSbResponseBody = createobject("CkStringBuilder")
loResp.GetBodySb(loSbResponseBody)
loJResp = createobject("CkJsonObject")
loJResp.LoadSb(loSbResponseBody)
loJResp.EmitCompact = .F.

? "Response Body:"
? loJResp.Emit()

lnRespStatusCode = loResp.StatusCode
? "Response Status Code = " + str(lnRespStatusCode)
if (lnRespStatusCode >= 400) then
    ? "Response Header:"
    ? loResp.Header
    ? "Failed."
    release loResp
    release loHttp
    release loReq
    release loSbResponseBody
    release loJResp
    return
endif

release loResp

// Sample JSON response:
// (Sample code for parsing the JSON response is shown below)

// {
//   "object_state": "VALID",
//   "status": "SUCCESS",
//   "object_created": "2013-12-27T19:14:48.273Z",
//   "object_updated": "2013-12-27T19:14:48.273Z",
//   "object_id": "64bba01845ef40d29374032599f22588",
//   "object_owner": "shippotle@goshippo.com",
//   "was_test": false,
//   "rate": {
//     "object_id": "cf6fea899f1848b494d9568e8266e076",
//     "amount": "5.50",
//     "currency": "USD",
//     "amount_local": "5.50",
//     "currency_local": "USD",
//     "provider": "USPS",
//     "servicelevel_name": "Priority Mail",
//     "servicelevel_token": "usps_priority",
//     "carrier_account": "078870331023437cb917f5187429b093"
//   },
//   "tracking_number": "ZW70QJC",
//   "tracking_status": {
//     "object_created": "2013-12-27T23:17:41.411Z",
//     "object_id": "a21b3d6831c14ceaba6730179ce6e784",
//     "status": "UNKNOWN",
//     "status_details": "",
//     "status_date": "2013-12-28T12:04:04.214Z"
//   },
//   "tracking_url_provider": "https://tools.usps.com/go/TrackConfirmAction.action?tLabels=ZW70QJC",
//   "eta": "2013-12-30T12:00:00.000Z",
//   "label_url": "https://shippo-delivery.s3.amazonaws.com/96.pdf?Signature=PEdWrp0mFWAGwJp7FW3b%2FeA2eyY%3D&Expires=1385930652&AWSAccessKeyId=AKIAJTHP3LLFMYAWALIA",
//   "commercial_invoice_url": "",
//   "metadata": "",
//   "messages": [
//   ]
// }

// Sample code for parsing the JSON response...
// Use the following online tool to generate parsing code from sample JSON:
// Generate Parsing Code from JSON

lcObject_state = loJResp.StringOf("object_state")
lcStatus = loJResp.StringOf("status")
lcObject_created = loJResp.StringOf("object_created")
lcObject_updated = loJResp.StringOf("object_updated")
lcObject_id = loJResp.StringOf("object_id")
lcObject_owner = loJResp.StringOf("object_owner")
llWas_test = loJResp.BoolOf("was_test")
lcRateObject_id = loJResp.StringOf("rate.object_id")
lcRateAmount = loJResp.StringOf("rate.amount")
lcRateCurrency = loJResp.StringOf("rate.currency")
lcRateAmount_local = loJResp.StringOf("rate.amount_local")
lcRateCurrency_local = loJResp.StringOf("rate.currency_local")
lcRateProvider = loJResp.StringOf("rate.provider")
lcRateServicelevel_name = loJResp.StringOf("rate.servicelevel_name")
lcRateServicelevel_token = loJResp.StringOf("rate.servicelevel_token")
lcRateCarrier_account = loJResp.StringOf("rate.carrier_account")
lcTracking_number = loJResp.StringOf("tracking_number")
lcTracking_statusObject_created = loJResp.StringOf("tracking_status.object_created")
lcTracking_statusObject_id = loJResp.StringOf("tracking_status.object_id")
lcTracking_statusStatus = loJResp.StringOf("tracking_status.status")
lcTracking_statusStatus_details = loJResp.StringOf("tracking_status.status_details")
lcTracking_statusStatus_date = loJResp.StringOf("tracking_status.status_date")
lcTracking_url_provider = loJResp.StringOf("tracking_url_provider")
lcEta = loJResp.StringOf("eta")
lcLabel_url = loJResp.StringOf("label_url")
lcCommercial_invoice_url = loJResp.StringOf("commercial_invoice_url")
lcMetadata = loJResp.StringOf("metadata")
i = 0
lnCount_i = loJResp.SizeOfArray("messages")
do while i < lnCount_i
    loJResp.I = i
    i = i + 1
enddo


release loHttp
release loReq
release loSbResponseBody
release loJResp