(Unicode C++) Shopify Update Inventory Level for a Product (Adjust available quantity)

Use the adjust endpoint with the location ID and inventory item ID to increase or decrease the available quantity for an inventory level:

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

Chilkat C/C++ Library Downloads
MS Visual C/C++ Linux/CentOS C/C++ Alpine Linux C/C++ MAC OS X C/C++	armhf/aarch64 C/C++ C++ Builder iOS C/C++ Android C/C++	Solaris C/C++ MinGW C/C++

#include <CkHttpW.h>
#include <CkJsonObjectW.h>
#include <CkHttpResponseW.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");

    // Also see: How to retrieve inventory levels

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

    // The following JSON is sent in the request body:

    // {
    //   "location_id": 6884556842,
    //   "inventory_item_id": 12250274365496,
    //   "available_adjustment": 1
    // }

    // Use this online tool to generate the code from sample JSON: 
    // Generate Code to Create JSON

    CkJsonObjectW jsonRequestBody;
    jsonRequestBody.UpdateInt(L"location_id",6884556842);
    jsonRequestBody.UpdateInt(L"inventory_item_id",12250274365496);
    jsonRequestBody.UpdateInt(L"available_adjustment",1);

    const wchar_t *url = L"https://{shop}.myshopify.com/admin/api/2020-04/inventory_levels/adjust.json";

    CkHttpResponseW *resp = http.PText(L"POST",url,jsonRequestBody.emit(),L"utf-8",L"application/json",false,false);
    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() >= 300) {
        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

    // {
    //   "inventory_level": {
    //     "inventory_item_id": 12250274365496,
    //     "location_id": 6884556842,
    //     "available": 9,
    //     "updated_at": "2018-06-26T15:04:49-04:00",
    // ...
    //     "admin_graphql_api_id": "gid://shopify/InventoryLevel/6485147690?inventory_item_id=12250274365496"
    // ...
    //   }
    // }
    // 

    int inventory_levelInventory_item_id = jsonResponse.IntOf(L"inventory_level.inventory_item_id");
    int inventory_levelLocation_id = jsonResponse.IntOf(L"inventory_level.location_id");
    int inventory_levelAvailable = jsonResponse.IntOf(L"inventory_level.available");
    const wchar_t *inventory_levelUpdated_at = jsonResponse.stringOf(L"inventory_level.updated_at");
    const wchar_t *inventory_levelAdmin_graphql_api_id = jsonResponse.stringOf(L"inventory_level.admin_graphql_api_id");
    }