Amazon Simple Notification Service (SNS)

See Amazon Simple Notification Service (SNS) Developer Guide for general guidance using SNS.

API Access

The ISNSClient interface and its implementation TSNSClient provides access to all SNS operations.

program PublishMessageToTopic;

uses
  AWS.SNS,
  System.SysUtils;

var
  Client: ISNSClient;
  Request: ISNSPublishToTopicRequest;
  Response: ISNSPublishResponse;

begin
  try
  Client := TSNSClient.Create;
  Request := TSNSPublishToTopicRequest.Create(
    'arn:aws:sns:us-east-1:123456789012:MyTopic',
    'Your message here...'
  );
  Response := Client.Publish(Request);
  if Response.IsSuccessful then
    Writeln('Message was published!')
  else
    Writeln('Message was not published!');
  except
    on E: ESNSException do
      Writeln(E.ClassName, ': ', E.Message);
  end;
  Readln;
end.

Receiving Messages

When receiving messages to endpoints such as HTTP, a class for verifying the authenticity of messages is provided in TSNSMessageVerifier.

The TSNSMessageVerifier uses cryptographic functions provided by OpenSSL. When using this class, you must ensure OpenSSL is available. See the DocWiki article on OpenSSL for more details.