(C++) Walmart - Get Inventory for an Item

Note: This example uses classes, properties, or methods discontinued in Chilkat v11.0.0 or greater.

Demonstrates how to get inventory for an item and parse the result.

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#include <CkStringBuilder.h>
#include <CkAuthUtil.h>
#include <CkJsonObject.h>
#include <CkHttp.h>
#include <CkXml.h>

void ChilkatSample(void)
    {
    // ---------------------------------------------------------------------------------------------------------
    // Note: This example is deprecated.  The Walmart API no longer uses the Signature method of authenticating.
    // Walmart now uses OAuth2.  
    // ---------------------------------------------------------------------------------------------------------

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

    // Sends the following GET request:
    // GET https://marketplace.walmartapis.com/v2/inventory?sku={SKU}

    CkStringBuilder sbUrl;
    bool success = sbUrl.Append("https://marketplace.walmartapis.com/v2/inventory?sku={SKU}");
    int numReplaced = sbUrl.Replace("{SKU}","HOPP~904~51041");

    const char *requestMethod = "GET";

    // First we need to generate a signature for our request.
    // The signature needs to be re-generated for each new Walmart HTTP request.
    CkAuthUtil authUtil;

    const char *wmConsumerId = "WALMART_CONSUMER_ID";
    const char *wmPrivateKey = "WALMART_PRIVATE_KEY";
    const char *jsonStr = authUtil.walmartSignature(sbUrl.getAsString(),wmConsumerId,wmPrivateKey,requestMethod);
    if (authUtil.get_LastMethodSuccess() != true) {
        std::cout << authUtil.lastErrorText() << "\r\n";
        return;
    }

    // The JSON returned by WalmartSignature contains the values to be used in the following
    // header fields: WM_SEC.AUTH_SIGNATURE, WM_SEC.TIMESTAMP, and WM_QOS.CORRELATION_ID
    CkJsonObject json;
    json.Load(jsonStr);

    CkHttp http;
    http.SetRequestHeader("WM_SVC.NAME","Walmart Marketplace");
    http.SetRequestHeader("WM_QOS.CORRELATION_ID",json.stringOf("correlation_id"));
    http.SetRequestHeader("WM_SEC.TIMESTAMP",json.stringOf("timestamp"));
    http.SetRequestHeader("WM_SEC.AUTH_SIGNATURE",json.stringOf("signature"));
    http.SetRequestHeader("WM_CONSUMER.ID",wmConsumerId);
    http.put_Accept("application/xml");

    // Note: Do not explicitly set the "Host" header.  Chilkat will set it automatically.

    const char *xmlStr = http.quickGetStr(sbUrl.getAsString());
    if (http.get_LastMethodSuccess() != true) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    CkXml xml;
    xml.LoadXml(xmlStr);

    // A successful response should have a 200 response status
    if (http.get_LastStatus() != 200) {
        std::cout << xml.getXml() << "\r\n";
        std::cout << "Response Status Code: " << http.get_LastStatus() << "\r\n";
        std::cout << "Failed." << "\r\n";
        return;
    }

    // A sample XML response is shown below..
    std::cout << xml.getXml() << "\r\n";
    std::cout << "--" << "\r\n";

    // To get the quantity:
    int quantity = xml.GetChildIntValue("quantity|amount");
    std::cout << "quantity = " << quantity << "\r\n";

    // ---------------------------------------
    // Sample XML response
    // ---------------------------------------

    // <?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
    // <inventory xmlns="http://walmart.com/">
    //     <sku>HOPP~904~51041</sku>
    //     <quantity>
    //         <unit>EACH</unit>
    //         <amount>234</amount>
    //     </quantity>
    //     <fulfillmentLagTime>5</fulfillmentLagTime>
    // </inventory>
    }