Delphi DLL

SNS Publish (Send Message)

See more Amazon SNS Examples

Sends a message to all of a topic's subscribed endpoints.

See SNS Publish for more information.

Delphi DLL

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
rest: HCkRest;
bTls: Boolean;
port: Integer;
bAutoReconnect: Boolean;
authAws: HCkAuthAws;
responseXml: PWideChar;
xml: HCkXml;

begin
success := False;

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

rest := CkRest_Create();

// Connect to the Amazon AWS REST server.
// such as https://sns.us-west-2.amazonaws.com/
bTls := True;
port := 443;
bAutoReconnect := True;
success := CkRest_Connect(rest,'sns.us-west-2.amazonaws.com',port,bTls,bAutoReconnect);

// Provide AWS credentials for the REST call.
authAws := CkAuthAws_Create();
CkAuthAws_putAccessKey(authAws,'AWS_ACCESS_KEY');
CkAuthAws_putSecretKey(authAws,'AWS_SECRET_KEY');
// the region should match our URL above..
CkAuthAws_putRegion(authAws,'us-west-2');
CkAuthAws_putServiceName(authAws,'sns');

CkRest_SetAuthAws(rest,authAws);

CkRest_AddQueryParam(rest,'Action','Publish');
CkRest_AddQueryParam(rest,'TopicArn','arn:aws:sns:us-west-2:957491831129:chilkat');
// For subscribed email addresses, this is the subject of the email.
CkRest_AddQueryParam(rest,'Subject','Test Message from Amazon SNS');
CkRest_AddQueryParam(rest,'Message','This is a test message from Amazon SNS');

responseXml := CkRest__fullRequestNoBody(rest,'GET','/');
if (CkRest_getLastMethodSuccess(rest) <> True) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

// A successful response will have a status code equal to 200.
if (CkRest_getResponseStatusCode(rest) <> 200) then
  begin
    Memo1.Lines.Add('response status code = ' + IntToStr(CkRest_getResponseStatusCode(rest)));
    Memo1.Lines.Add('response status text = ' + CkRest__responseStatusText(rest));
    Memo1.Lines.Add('response header: ' + CkRest__responseHeader(rest));
    Memo1.Lines.Add('response body: ' + responseXml);
    Exit;
  end;

// Examine the successful XML response.
xml := CkXml_Create();
CkXml_LoadXml(xml,responseXml);
Memo1.Lines.Add(CkXml__getXml(xml));

// To get the MessageId
Memo1.Lines.Add('MessageId: ' + CkXml__chilkatPath(xml,'PublishResult|MessageId|*'));

// A sample successful response:
// <?xml version="1.0" encoding="utf-8" ?>
// <PublishResponse xmlns="http://sns.amazonaws.com/doc/2010-03-31/">
//     <PublishResult>
//         <MessageId>5e135f2e-898d-5006-940a-0f43829c764b</MessageId>
//     </PublishResult>
//     <ResponseMetadata>
//         <RequestId>9adbf47d-9e07-5981-bb7f-a4609a167fcc</RequestId>
//     </ResponseMetadata>
// </PublishResponse>

CkRest_Dispose(rest);
CkAuthAws_Dispose(authAws);
CkXml_Dispose(xml);

end;