Routing messages from Amazon SNS to SQS with filtering

Question

In RabbitMQ, one can create an exchange, then bind it to multiple queues, each with a routing key. This enables messaging architectures like this:

           mes         


        

Answer 1

This is possible by using message attribute filtering in SNS. After you subscribe different SQS queues to an SNS topic, you can specify attributes to filter on by using the SNS API SetSubscriptionAttributes. This will allow messages with different attributes to get routed to the correct SQS queue.

This is also not limited to SQS queues but any subscription sources on a SNS topic. For example, a single SNS topic can publishing one set of messages to Lambda, and another set to SQS.

SDK Reference: http://docs.aws.amazon.com/sns/latest/api/API_SetSubscriptionAttributes.html

More details are given here with examples: https://aws.amazon.com/blogs/compute/simplify-pubsub-messaging-with-amazon-sns-message-filtering/