(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 <C_CkHttpW.h>
#include <C_CkHttpResponseW.h>
#include <C_CkJsonObjectW.h>

void ChilkatSample(void)
    {
    HCkHttpW http;
    HCkHttpResponseW resp;
    HCkJsonObjectW jsonResponse;
    int id;
    int product_id;
    const wchar_t *title;
    int inventory_item_id;
    const wchar_t *admin_graphql_api_id;

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

    http = CkHttpW_Create();

    CkHttpW_putLogin(http,L"SHOPIFY_PRIVATE_API_KEY");
    CkHttpW_putPassword(http,L"SHOPIFY_PRIVATE_API_KEY");

    CkHttpW_putAccept(http,L"application/json");

    resp = CkHttpW_QuickRequest(http,L"GET",L"https://{shop}.myshopify.com/admin/api/2020-04/products/{product_id}/variants/{variant_id}.json");
    if (CkHttpW_getLastMethodSuccess(http) != TRUE) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkHttpW_Dispose(http);
        return;
    }

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

    jsonResponse = CkJsonObjectW_Create();
    CkJsonObjectW_Load(jsonResponse,CkHttpResponseW_bodyStr(resp));
    CkJsonObjectW_putEmitCompact(jsonResponse,FALSE);
    wprintf(L"%s\n",CkJsonObjectW_emit(jsonResponse));

    if (CkHttpResponseW_getStatusCode(resp) != 200) {
        wprintf(L"Failed.\n");
        CkHttpResponseW_Dispose(resp);
        CkHttpW_Dispose(http);
        CkJsonObjectW_Dispose(jsonResponse);
        return;
    }

    CkHttpResponseW_Dispose(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"
    // }
    // 

    id = CkJsonObjectW_IntOf(jsonResponse,L"id");
    product_id = CkJsonObjectW_IntOf(jsonResponse,L"product_id");
    title = CkJsonObjectW_stringOf(jsonResponse,L"title");
    inventory_item_id = CkJsonObjectW_IntOf(jsonResponse,L"inventory_item_id");
    admin_graphql_api_id = CkJsonObjectW_stringOf(jsonResponse,L"admin_graphql_api_id");


    CkHttpW_Dispose(http);
    CkJsonObjectW_Dispose(jsonResponse);

    }