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Excerpt

This parameters template demonstrates publishing a SNS message in structured JSON format with the Publish SNS Message action:

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Tip
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JSON Message Generator

The AWS Management Console features a JSON Message Generator that eases composition of the required JSON message structure, refer to section Create Different Messages for Each Protocol for within Publish to a topic for details.

Publish SNS Message parameters example (structured JSON format – escaped manually)

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{
  "TopicArn": "arn:aws:sns:ap-southeast-2:123456789012:sample-AutomationWithAWSQuickstartSNSTopic-15EO7TT8O93XT",
  "Message": "{ \n\"default\": \"Event ${event$event.simpleName} with ${eventtrace ID $event.traceId} triggered at ${event$event.timestamp}\"\n}\n",
  "MessageStructure": "json",
  "Subject": "Automation with AWS: An event: $event.simpleName triggered at $event.timestamp"
}

Publish SNS Message parameters example (structured JSON format – escaped with utility function)

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{
  "TopicArn": "arn:aws:sns:ap-southeast-2:123456789012:sample-AutomationWithAWSQuickstartSNSTopic-15EO7TT8O93XT",
  "Message": "$util.escapeJson('{
    "default": "$event.simpleName with trace ID $event.traceId triggered at ${event$event.timestamp"
  }')",
  "MessageStructure": "json",
  "Subject": "Automation with AWS: $event.simpleName triggered at $event.timestamp"
}