(Unicode C++) 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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#include <CkHttpW.h>
#include <CkHttpRequestW.h>
#include <CkHttpResponseW.h>
#include <CkStringBuilderW.h>
#include <CkJsonObjectW.h>

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

    CkHttpW http;
    bool success;

    // 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

    CkHttpRequestW req;
    req.put_HttpVerb(L"POST");
    req.put_Path(L"/transactions");
    req.put_ContentType(L"application/x-www-form-urlencoded");
    req.AddParam(L"rate",L"ec6143e746094bcab1bdc4c17600dabf");
    req.AddParam(L"label_file_type",L"PDF");
    req.AddParam(L"async",L"false");

    req.AddHeader(L"Authorization",L"ShippoToken <API_TOKEN>");

    CkHttpResponseW *resp = http.PostUrlEncoded(L"https://api.goshippo.com/transactions",req);
    if (http.get_LastMethodSuccess() == false) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    CkStringBuilderW sbResponseBody;
    resp->GetBodySb(sbResponseBody);
    CkJsonObjectW jResp;
    jResp.LoadSb(sbResponseBody);
    jResp.put_EmitCompact(false);

    wprintf(L"Response Body:\n");
    wprintf(L"%s\n",jResp.emit());

    int respStatusCode = resp->get_StatusCode();
    wprintf(L"Response Status Code = %d\n",respStatusCode);
    if (respStatusCode >= 400) {
        wprintf(L"Response Header:\n");
        wprintf(L"%s\n",resp->header());
        wprintf(L"Failed.\n");
        delete resp;
        return;
    }

    delete resp;

    // 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

    // Chilkat functions returning "const char *" return a pointer to temporary internal memory owned and managed by Chilkat.
    // See this example explaining how this memory should be used: const char * functions.

    const wchar_t *object_state = jResp.stringOf(L"object_state");
    const wchar_t *status = jResp.stringOf(L"status");
    const wchar_t *object_created = jResp.stringOf(L"object_created");
    const wchar_t *object_updated = jResp.stringOf(L"object_updated");
    const wchar_t *object_id = jResp.stringOf(L"object_id");
    const wchar_t *object_owner = jResp.stringOf(L"object_owner");
    bool was_test = jResp.BoolOf(L"was_test");
    const wchar_t *rateObject_id = jResp.stringOf(L"rate.object_id");
    const wchar_t *rateAmount = jResp.stringOf(L"rate.amount");
    const wchar_t *rateCurrency = jResp.stringOf(L"rate.currency");
    const wchar_t *rateAmount_local = jResp.stringOf(L"rate.amount_local");
    const wchar_t *rateCurrency_local = jResp.stringOf(L"rate.currency_local");
    const wchar_t *rateProvider = jResp.stringOf(L"rate.provider");
    const wchar_t *rateServicelevel_name = jResp.stringOf(L"rate.servicelevel_name");
    const wchar_t *rateServicelevel_token = jResp.stringOf(L"rate.servicelevel_token");
    const wchar_t *rateCarrier_account = jResp.stringOf(L"rate.carrier_account");
    const wchar_t *tracking_number = jResp.stringOf(L"tracking_number");
    const wchar_t *tracking_statusObject_created = jResp.stringOf(L"tracking_status.object_created");
    const wchar_t *tracking_statusObject_id = jResp.stringOf(L"tracking_status.object_id");
    const wchar_t *tracking_statusStatus = jResp.stringOf(L"tracking_status.status");
    const wchar_t *tracking_statusStatus_details = jResp.stringOf(L"tracking_status.status_details");
    const wchar_t *tracking_statusStatus_date = jResp.stringOf(L"tracking_status.status_date");
    const wchar_t *tracking_url_provider = jResp.stringOf(L"tracking_url_provider");
    const wchar_t *eta = jResp.stringOf(L"eta");
    const wchar_t *label_url = jResp.stringOf(L"label_url");
    const wchar_t *commercial_invoice_url = jResp.stringOf(L"commercial_invoice_url");
    const wchar_t *metadata = jResp.stringOf(L"metadata");
    int i = 0;
    int count_i = jResp.SizeOfArray(L"messages");
    while (i < count_i) {
        jResp.put_I(i);
        i = i + 1;
    }
    }