How to add SQS message attributes in SNS subscription?

Evgeny_11414 0
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The documentation for AWS SNS and SQS have sections about message attributes. But there is no explanation how to have SQS message attributes when that queue is subscribed to a SNS topic.

Is there a way to configure AWS SNS to add particular message attributes to the SQS messages send via the subscription?

amazon-sqs amazon-sns amazon-web-services
4 Answers

Enabled Raw message delivery type while adding SQS subscription for the topic inside SNS

user_60954440

If you are here because you have a SQS queue that is subscribed to an SNS topic, you checked that your subscription has set the Raw Message Delivery to True but you still cannot read an attribute on your SQS message:

Make sure that your SQS client is not filtering out message attributes.

The code below will only include myAttribute when receiving messages from the SQS queue:

SQS.receiveMessage({
  QueueUrl: queueUrl,
  VisibilityTimeout: 20,
  WaitTimeSeconds: 10,
  MessageAttributeNames: [
    "myAttribute"
  ],
},...

If you want to read the value of some attribute other than myAttribute you will have to specify it (white list) or replace "myAttribute" with "All" to include all SQS attributes.

SQS.receiveMessage({
  MessageAttributeNames: [
    "myAttribute", "myOtherAttribute"
  ],
},...

Reference: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/APIReference/API_ReceiveMessage.html

user_2585100
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