(Objective-C) MWS List Orders by Next Token (Amazon Marketplace Web Service)

Returns the next page of orders using the NextToken parameter.

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#import <CkoRest.h>
#import <NSString.h>

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

// See MWS List Orders By Next Token for additional details 

// We need to send a GET request like this:

// https://mws.amazonservices.jp/Orders/2013-09-01
//   ?AWSAccessKeyId=0PB842EXAMPLE7N4ZTR2
//   &Action=ListOrdersByNextToken
//   &MWSAuthToken=amzn.mws.4ea38b7b-f563-7709-4bae-87aeaEXAMPLE
//   &SellerId=A2986ZQ066CH2F
//   &Signature=ZQLpf8vEXAMPLE0iC265pf18n0%3D
//   &SignatureVersion=2
//   &SignatureMethod=HmacSHA256
//   &NextToken=2YgYW55IGNhcm5hbCBwbGVhc3VyZS4%3D
//   &Timestamp=2017-02-05T18%3A12%3A21.687Z
//   &Version=2013-09-01

CkoRest *rest = [[CkoRest alloc] init];

// Connect to the Amazon MWS REST server.
// 
// Make sure to connect to the correct Amazon MWS Endpoint, otherwise
// you'll get an HTTP 401 response code.
// 
// The possible servers are:
// 
// North America (NA) 	https://mws.amazonservices.com
// Europe (EU) 	https://mws-eu.amazonservices.com
// India (IN) 	https://mws.amazonservices.in
// China (CN) 	https://mws.amazonservices.com.cn
// Japan (JP) 	https://mws.amazonservices.jp 
// 
BOOL bTls = YES;
int port = 443;
BOOL bAutoReconnect = YES;
BOOL success = [rest Connect: @"mws.amazonservices.com" port: [NSNumber numberWithInt: port] tls: bTls autoReconnect: bAutoReconnect];

rest.Host = @"mws.amazonservices.com";

// Add query params
[rest AddQueryParam: @"NextToken" value: @"THE_NEXT_TOKEN_FROM_THE_PREVIOUS_REPLY"];
[rest AddQueryParam: @"Action" value: @"ListOrdersByNextToken"];
[rest AddQueryParam: @"MarketplaceId.Id.1" value: @"MWS_MARKETPLACE_ID"];
[rest AddQueryParam: @"SellerId" value: @"MWS_SELLER_ID"];
[rest AddQueryParam: @"AWSAccessKeyId" value: @"MWS_ACCESS_KEY_ID"];
[rest AddQueryParam: @"SignatureVersion" value: @"2"];
[rest AddQueryParam: @"SignatureMethod" value: @"HmacSHA256"];
[rest AddQueryParam: @"Version" value: @"2013-09-01"];

// Add the MWS Signature param.  (Also adds the Timestamp parameter using the curent system date/time.)
[rest AddMwsSignature: @"POST" uriPath: @"/Orders/2013-09-01" domain: @"mws.amazonservices.com" mwsSecretKey: @"MWS_SECRET_ACCESS_KEY_ID"];

NSString *responseXml = [rest FullRequestFormUrlEncoded: @"POST" uriPath: @"/Orders/2013-09-01"];
if (rest.LastMethodSuccess != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

if ([rest.ResponseStatusCode intValue] != 200) {
    // Examine the request/response to see what happened.
    NSLog(@"%@%d",@"response status code = ",[rest.ResponseStatusCode intValue]);
    NSLog(@"%@%@",@"response status text = ",rest.ResponseStatusText);
    NSLog(@"%@%@",@"response header: ",rest.ResponseHeader);
    NSLog(@"%@%@",@"response body: ",responseXml);
    NSLog(@"%@",@"---");
    NSLog(@"%@%@",@"LastRequestStartLine: ",rest.LastRequestStartLine);
    NSLog(@"%@%@",@"LastRequestHeader: ",rest.LastRequestHeader);
}

// Examine the XML returned in the response body.
NSLog(@"%@",responseXml);
NSLog(@"%@",@"----");
NSLog(@"%@",@"Success.");