Sending multiple messages to SNS on a single call

Question

I have a scenario where every time lambda runs, it will send 1000 messages to a SNS topic. I can loop through the list of messages and call the publish method 1000 times, one message at a time but I was wondering if there is a way to send multiple messages in one call. In that case I can batch the messages and call publish let say 10 with 100 messages on each execution.

I would really appreciate if someone can help on this.

Answer 1

SNS has just introduced the PublishBatch API, which you can use to send up to 10 messages to an SNS topic in a single API request. More information on the feature launch can be found here: https://aws.amazon.com/about-aws/whats-new/2021/11/amazon-sns-supports-publishing-batches-messages-single-api-request/