Pascal (Lazarus/Delphi)

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

See more Amazon MWS Examples

Returns the next page of orders using the NextToken parameter. Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Rest;

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

procedure RunDemo;
var
  success: Boolean;
  rest: TRest;
  bTls: Boolean;
  port: Integer;
  bAutoReconnect: Boolean;
  responseXml: string;

begin
  success := False;

  //  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

  rest := TRest.Create;

  //  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 
  //  
  bTls := True;
  port := 443;
  bAutoReconnect := True;
  success := rest.Connect('mws.amazonservices.com',port,bTls,bAutoReconnect);

  rest.Host := 'mws.amazonservices.com';

  //  Add query params
  rest.AddQueryParam('NextToken','THE_NEXT_TOKEN_FROM_THE_PREVIOUS_REPLY');
  rest.AddQueryParam('Action','ListOrdersByNextToken');
  rest.AddQueryParam('MarketplaceId.Id.1','MWS_MARKETPLACE_ID');
  rest.AddQueryParam('SellerId','MWS_SELLER_ID');
  rest.AddQueryParam('AWSAccessKeyId','MWS_ACCESS_KEY_ID');
  rest.AddQueryParam('SignatureVersion','2');
  rest.AddQueryParam('SignatureMethod','HmacSHA256');
  rest.AddQueryParam('Version','2013-09-01');

  //  Add the MWS Signature param.  (Also adds the Timestamp parameter using the curent system date/time.)
  rest.AddMwsSignature('POST','/Orders/2013-09-01','mws.amazonservices.com','MWS_SECRET_ACCESS_KEY_ID');

  responseXml := rest.FullRequestFormUrlEncoded('POST','/Orders/2013-09-01');
  if (rest.LastMethodSuccess <> True) then
    begin
      WriteLn(rest.LastErrorText);
      Exit;
    end;

  if (rest.ResponseStatusCode <> 200) then
    begin
      //  Examine the request/response to see what happened.
      WriteLn('response status code = ' + rest.ResponseStatusCode);
      WriteLn('response status text = ' + rest.ResponseStatusText);
      WriteLn('response header: ' + rest.ResponseHeader);
      WriteLn('response body: ' + responseXml);
      WriteLn('---');
      WriteLn('LastRequestStartLine: ' + rest.LastRequestStartLine);
      WriteLn('LastRequestHeader: ' + rest.LastRequestHeader);
    end;

  //  Examine the XML returned in the response body.
  WriteLn(responseXml);
  WriteLn('----');
  WriteLn('Success.');


  rest.Free;

end;

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

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.