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

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
requestUrl: WideString;
requestMethod: WideString;
authUtil: TChilkatAuthUtil;
wmConsumerId: WideString;
wmPrivateKey: WideString;
jsonStr: WideString;
json: TChilkatJsonObject;
http: TChilkatHttp;
xmlStr: WideString;
xml: TChilkatXml;
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 := TChilkatAuthUtil.Create(Self);

wmConsumerId := 'WALMART_CONSUMER_ID';
wmPrivateKey := 'WALMART_PRIVATE_KEY';
jsonStr := authUtil.WalmartSignature(requestUrl,wmConsumerId,wmPrivateKey,requestMethod);
if (authUtil.LastMethodSuccess <> 1) then
  begin
    Memo1.Lines.Add(authUtil.LastErrorText);
    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 := TChilkatJsonObject.Create(Self);
json.Load(jsonStr);

http := TChilkatHttp.Create(Self);
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.Accept := 'application/xml';

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

xmlStr := http.QuickGetStr(requestUrl);
if (http.LastMethodSuccess <> 1) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

xml := TChilkatXml.Create(Self);
xml.LoadXml(xmlStr);

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

// A sample XML response is shown below..

// To iterate over the Walmart feeds:
numFeeds := xml.NumChildrenAt('ns2:results');
i := 0;
while i < numFeeds do
  begin
    xml.I := i;

    Memo1.Lines.Add('Feed ID: ' + xml.GetChildContent('ns2:results|ns2:feed[i]|ns2:feedId'));
    Memo1.Lines.Add('Feed Type: ' + xml.GetChildContent('ns2:results|ns2:feed[i]|ns2:feedType'));
    Memo1.Lines.Add('Num Items Recieved: ' + IntToStr(xml.GetChildIntValue('ns2:results|ns2:feed[i]|ns2:itemsReceived')));
    Memo1.Lines.Add('Feed Status: ' + xml.GetChildContent('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>
end;