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C Web API Examples

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(C) Walmart - Get All Feed Statuses

Demonstrates how to send a Walmart REST API request to get all feed statuses.

Note: This example requires Chilkat v9.5.0.67 or greater.

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#include <C_CkAuthUtil.h>
#include <C_CkJsonObject.h>
#include <C_CkHttp.h>
#include <C_CkXml.h>

void ChilkatSample(void)
    {
    const char *requestUrl;
    const char *requestMethod;
    HCkAuthUtil authUtil;
    const char *wmConsumerId;
    const char *wmPrivateKey;
    const char *jsonStr;
    HCkJsonObject json;
    HCkHttp http;
    const char *xmlStr;
    HCkXml xml;
    int numFeeds;
    int i;

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

    // Demonstrates how to send a request such as the following to get all feed statuses:
    // Also demonstrates how to parse the results.

    // GET /v2/feeds HTTP/1.1
    // WM_SVC.NAME: Walmart Marketplace
    // WM_QOS.CORRELATION_ID: 123456abcdef
    // WM_SEC.TIMESTAMP: 1438147839
    // WM_SEC.AUTH_SIGNATURE: 9khb0lPeRt0WSGbXNGGj4kSQ9L6PMBX/q+ovdy9bDQfvdhYs8NoEsjRX4fD7UNIHTddgkmSVqAqeIIHlaLcRIl0Y4DcJqQYHL27LiWlsm91nYodGssWTKsOq6dJfUHEy95M4zXFGWDDhbHYCor28SCV/g/JdEQybGkcX9Zj5aDyg=
    // WM_CONSUMER.ID: a20ac266-9add-4fc7-9392-fec303f5155c
    // Accept: application/xml
    // Host: https://marketplace.walmartapis.com

    requestUrl = "https://marketplace.walmartapis.com/v2/feeds";
    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.
    authUtil = CkAuthUtil_Create();

    wmConsumerId = "WALMART_CONSUMER_ID";
    wmPrivateKey = "WALMART_PRIVATE_KEY";
    jsonStr = CkAuthUtil_walmartSignature(authUtil,requestUrl,wmConsumerId,wmPrivateKey,requestMethod);
    if (CkAuthUtil_getLastMethodSuccess(authUtil) != TRUE) {
        printf("%s\n",CkAuthUtil_lastErrorText(authUtil));
        CkAuthUtil_Dispose(authUtil);
        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
    json = CkJsonObject_Create();
    CkJsonObject_Load(json,jsonStr);

    http = CkHttp_Create();
    CkHttp_SetRequestHeader(http,"WM_SVC.NAME","Walmart Marketplace");
    CkHttp_SetRequestHeader(http,"WM_QOS.CORRELATION_ID",CkJsonObject_stringOf(json,"correlation_id"));
    CkHttp_SetRequestHeader(http,"WM_SEC.TIMESTAMP",CkJsonObject_stringOf(json,"timestamp"));
    CkHttp_SetRequestHeader(http,"WM_SEC.AUTH_SIGNATURE",CkJsonObject_stringOf(json,"signature"));
    CkHttp_SetRequestHeader(http,"WM_CONSUMER.ID",wmConsumerId);
    CkHttp_putAccept(http,"application/xml");

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

    xmlStr = CkHttp_quickGetStr(http,requestUrl);
    if (CkHttp_getLastMethodSuccess(http) != TRUE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkAuthUtil_Dispose(authUtil);
        CkJsonObject_Dispose(json);
        CkHttp_Dispose(http);
        return;
    }

    xml = CkXml_Create();
    CkXml_LoadXml(xml,xmlStr);

    // A successful response should have a 200 response status
    if (CkHttp_getLastStatus(http) != 200) {
        printf("%s\n",CkXml_getXml(xml));
        printf("Response Status Code: %d\n",CkHttp_getLastStatus(http));
        printf("Failed.\n");
        CkAuthUtil_Dispose(authUtil);
        CkJsonObject_Dispose(json);
        CkHttp_Dispose(http);
        CkXml_Dispose(xml);
        return;
    }

    // A sample XML response is shown below..

    // To iterate over the Walmart feeds:
    numFeeds = CkXml_NumChildrenAt(xml,"ns2:results");
    i = 0;
    while (i < numFeeds) {
        CkXml_putI(xml,i);

        printf("Feed ID: %s\n",CkXml_getChildContent(xml,"ns2:results|ns2:feed[i]|ns2:feedId"));
        printf("Feed Type: %s\n",CkXml_getChildContent(xml,"ns2:results|ns2:feed[i]|ns2:feedType"));
        printf("Num Items Recieved: %d\n",CkXml_GetChildIntValue(xml,"ns2:results|ns2:feed[i]|ns2:itemsReceived"));
        printf("Feed Status: %s\n",CkXml_getChildContent(xml,"ns2:results|ns2:feed[i]|ns2:feedStatus"));
        printf("--\n");

        i = i + 1;
    }

    printf("Success.\n");

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

    // <?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
    // <ns2:list xmlns:ns2="http://walmart.com/">
    //     <ns2:totalResults>1293</ns2:totalResults>
    //     <ns2:offset>0</ns2:offset>
    //     <ns2:limit>50</ns2:limit>
    //     <ns2:results>
    //         <ns2:feed>
    //             <ns2:feedId>AAAA7F0345E9403C91223F7139FFC341@AQsBAQA</ns2:feedId>
    //             <ns2:feedType>inventory</ns2:feedType>
    //             <ns2:partnerId>10000999999</ns2:partnerId>
    //             <ns2:itemsReceived>130088</ns2:itemsReceived>
    //             <ns2:itemsSucceeded>113154</ns2:itemsSucceeded>
    //             <ns2:itemsFailed>16934</ns2:itemsFailed>
    //             <ns2:itemsProcessing>0</ns2:itemsProcessing>
    //             <ns2:feedStatus>PROCESSED</ns2:feedStatus>
    //             <ns2:feedDate>2017-04-27T17:05:42.078Z</ns2:feedDate>
    //             <ns2:modifiedDtm>2017-04-27T18:06:10.795Z</ns2:modifiedDtm>
    //         </ns2:feed>
    //         <ns2:feed>
    //             <ns2:feedId>AAAAF1F402CD407FA363AD2929593FFF@AQsBAQA</ns2:feedId>
    //             <ns2:feedType>inventory</ns2:feedType>
    //             <ns2:partnerId>10000999999</ns2:partnerId>
    //             <ns2:itemsReceived>39594</ns2:itemsReceived>
    //             <ns2:itemsSucceeded>34533</ns2:itemsSucceeded>
    //             <ns2:itemsFailed>5061</ns2:itemsFailed>
    //             <ns2:itemsProcessing>0</ns2:itemsProcessing>
    //             <ns2:feedStatus>PROCESSED</ns2:feedStatus>
    //             <ns2:feedDate>2017-04-27T05:18:59.739Z</ns2:feedDate>
    //             <ns2:modifiedDtm>2017-04-27T05:20:30.192Z</ns2:modifiedDtm>
    //         </ns2:feed>
    // ...
    //     </ns2:results>
    // </ns2:list>


    CkAuthUtil_Dispose(authUtil);
    CkJsonObject_Dispose(json);
    CkHttp_Dispose(http);
    CkXml_Dispose(xml);

    }

 

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