Pascal (Lazarus/Delphi)

HTTPS MWS List Orders (Amazon Marketplace Web Service)

See more HTTP Misc Examples

Send an HTTPS MWS ListOrders request to return a list of orders created or updated during a time frame. 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.Http,
  Chilkat.HttpRequest,
  Chilkat.HttpResponse;

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

procedure RunDemo;
var
  success: Boolean;
  http: THttp;
  req: THttpRequest;
  resp: THttpResponse;

begin
  success := False;

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

  http := THttp.Create;

  //  Make sure to connect to the correct Amazon MWS Endpoing, 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 
  //  

  //  Build the HTTP request.
  req := THttpRequest.Create;

  //  Add query params
  req.AddParam('Action','ListOrders');
  req.AddParam('CreatedAfter','2016-12-31T23:00:00Z');
  req.AddParam('MarketplaceId.Id.1','MWS_MARKETPLACE_ID');
  req.AddParam('SellerId','MWS_SELLER_ID');
  req.AddParam('AWSAccessKeyId','MWS_ACCESS_KEY_ID');
  req.AddParam('SignatureVersion','2');
  req.AddParam('SignatureMethod','HmacSHA256');
  req.AddParam('Version','2013-09-01');

  //  Set the HTTP verb and path.
  req.Path := '/Orders/2013-09-01';
  req.HttpVerb := 'POST';

  //  Add the MWS Signature after the verb, path, and all params have been set.
  req.AddMwsSignature('mws.amazonservices.com','MWS_SECRET_ACCESS_KEY_ID');

  req.ContentType := 'application/x-www-form-urlencoded';

  resp := THttpResponse.Create;
  success := http.HttpReq('https://mws.amazonservices.com/Orders/2013-09-01',req,resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  if (resp.StatusCode <> 200) then
    begin
      WriteLn('Non-success status code: ' + resp.StatusCode);
      WriteLn(resp.BodyStr);
      Exit;
    end;

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


  http.Free;
  req.Free;
  resp.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.