(Unicode C++) Shopify Query a variant for its inventory item ID

Query a product variant to find the ID of its inventory item.

For more information, see https://shopify.dev/tutorials/manage-product-inventory-with-admin-api#retrieve-the-inventory-levels-for-a-product-variant

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#include <CkHttpW.h>
#include <CkHttpResponseW.h>
#include <CkJsonObjectW.h>

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

    CkHttpW http;

    http.put_Login(L"SHOPIFY_PRIVATE_API_KEY");
    http.put_Password(L"SHOPIFY_PRIVATE_API_KEY");

    http.put_Accept(L"application/json");

    CkHttpResponseW *resp = http.QuickRequest(L"GET",L"https://{shop}.myshopify.com/admin/api/2020-04/products/{product_id}/variants/{variant_id}.json");
    if (http.get_LastMethodSuccess() != true) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    wprintf(L"Response Status Code: %d\n",resp->get_StatusCode());

    CkJsonObjectW jsonResponse;
    jsonResponse.Load(resp->bodyStr());
    jsonResponse.put_EmitCompact(false);
    wprintf(L"%s\n",jsonResponse.emit());

    if (resp->get_StatusCode() != 200) {
        wprintf(L"Failed.\n");
        delete resp;
        return;
    }

    delete resp;

    // Sample output...
    // (See the parsing code below..)
    // 
    // Use the this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    // {
    //   "id": 12195009364024,
    //   "product_id": 1321541042232,
    //   "title": "xs",
    // ...
    //   "inventory_item_id": 12250274365496,
    // ...
    //   "admin_graphql_api_id": "gid://shopify/ProductVariant/12195009364024"
    // }
    // 

    int id = jsonResponse.IntOf(L"id");
    int product_id = jsonResponse.IntOf(L"product_id");
    const wchar_t *title = jsonResponse.stringOf(L"title");
    int inventory_item_id = jsonResponse.IntOf(L"inventory_item_id");
    const wchar_t *admin_graphql_api_id = jsonResponse.stringOf(L"admin_graphql_api_id");
    }