(Delphi DLL) Walmart - Get All Feed Statuses

Note: This is an older example for the Walmart v2 API. You should instead use the Walmart v3 API.

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

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Http, AuthUtil, Xml, JsonObject;

...

procedure TForm1.Button1Click(Sender: TObject);
var
requestUrl: PWideChar;
requestMethod: PWideChar;
authUtil: HCkAuthUtil;
wmConsumerId: PWideChar;
wmPrivateKey: PWideChar;
jsonStr: PWideChar;
json: HCkJsonObject;
http: HCkHttp;
xmlStr: PWideChar;
xml: HCkXml;
numFeeds: Integer;
i: Integer;

begin
// --------------------------------------------------------------------
// This example is for the older and deprecated Walmart v2 API.
// 
// Use the v3 API instead: Walmart v3 Get All Feed Statuses
// --------------------------------------------------------------------

// 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) then
  begin
    Memo1.Lines.Add(CkAuthUtil__lastErrorText(authUtil));
    Exit;
  end;

// 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) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

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

// A successful response should have a 200 response status
if (CkHttp_getLastStatus(http) <> 200) then
  begin
    Memo1.Lines.Add(CkXml__getXml(xml));
    Memo1.Lines.Add('Response Status Code: ' + IntToStr(CkHttp_getLastStatus(http)));
    Memo1.Lines.Add('Failed.');
    Exit;
  end;

// A sample XML response is shown below..

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

    Memo1.Lines.Add('Feed ID: ' + CkXml__getChildContent(xml,'ns2:results|ns2:feed[i]|ns2:feedId'));
    Memo1.Lines.Add('Feed Type: ' + CkXml__getChildContent(xml,'ns2:results|ns2:feed[i]|ns2:feedType'));
    Memo1.Lines.Add('Num Items Recieved: ' + IntToStr(CkXml_GetChildIntValue(xml,'ns2:results|ns2:feed[i]|ns2:itemsReceived')));
    Memo1.Lines.Add('Feed Status: ' + CkXml__getChildContent(xml,'ns2:results|ns2:feed[i]|ns2:feedStatus'));
    Memo1.Lines.Add('--');

    i := i + 1;
  end;

Memo1.Lines.Add('Success.');

// ---------------------------------------
// 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);

end;