(Objective-C) 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.

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#import <NSString.h>
#import <CkoAuthUtil.h>
#import <CkoJsonObject.h>
#import <CkoHttp.h>
#import <CkoXml.h>

// --------------------------------------------------------------------
// 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

NSString *requestUrl = @"https://marketplace.walmartapis.com/v2/feeds";
NSString *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.
CkoAuthUtil *authUtil = [[CkoAuthUtil alloc] init];

NSString *wmConsumerId = @"WALMART_CONSUMER_ID";
NSString *wmPrivateKey = @"WALMART_PRIVATE_KEY";
NSString *jsonStr = [authUtil WalmartSignature: requestUrl consumerId: wmConsumerId privateKey: wmPrivateKey requestMethod: requestMethod];
if (authUtil.LastMethodSuccess != YES) {
    NSLog(@"%@",authUtil.LastErrorText);
    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
CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json Load: jsonStr];

CkoHttp *http = [[CkoHttp alloc] init];
[http SetRequestHeader: @"WM_SVC.NAME" value: @"Walmart Marketplace"];
[http SetRequestHeader: @"WM_QOS.CORRELATION_ID" value: [json StringOf: @"correlation_id"]];
[http SetRequestHeader: @"WM_SEC.TIMESTAMP" value: [json StringOf: @"timestamp"]];
[http SetRequestHeader: @"WM_SEC.AUTH_SIGNATURE" value: [json StringOf: @"signature"]];
[http SetRequestHeader: @"WM_CONSUMER.ID" value: wmConsumerId];
http.Accept = @"application/xml";

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

NSString *xmlStr = [http QuickGetStr: requestUrl];
if (http.LastMethodSuccess != YES) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

CkoXml *xml = [[CkoXml alloc] init];
[xml LoadXml: xmlStr];

// A successful response should have a 200 response status
if ([http.LastStatus intValue] != 200) {
    NSLog(@"%@",[xml GetXml]);
    NSLog(@"%@%d",@"Response Status Code: ",[http.LastStatus intValue]);
    NSLog(@"%@",@"Failed.");
    return;
}

// A sample XML response is shown below..

// To iterate over the Walmart feeds:
int numFeeds = [[xml NumChildrenAt: @"ns2:results"] intValue];
int i = 0;
while (i < numFeeds) {
    xml.I = [NSNumber numberWithInt: i];

    NSLog(@"%@%@",@"Feed ID: ",[xml GetChildContent: @"ns2:results|ns2:feed[i]|ns2:feedId"]);
    NSLog(@"%@%@",@"Feed Type: ",[xml GetChildContent: @"ns2:results|ns2:feed[i]|ns2:feedType"]);
    NSLog(@"%@%d",@"Num Items Recieved: ",[[xml GetChildIntValue: @"ns2:results|ns2:feed[i]|ns2:itemsReceived"] intValue]);
    NSLog(@"%@%@",@"Feed Status: ",[xml GetChildContent: @"ns2:results|ns2:feed[i]|ns2:feedStatus"]);
    NSLog(@"%@",@"--");

    i = i + 1;
}

NSLog(@"%@",@"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>