As we have already seen, message brokering is an important part of modern applications. In the case of SQS, we had a producer-consumer model, but in some cases we need to distribute one message to multiple consumers at the same time. For many-to-one use cases, we introduce Simple Notification Service (SNS).

The following topics will be covered in this chapter:

• Introduction to SNS
• SNS use cases
• Working with topics
• Managing SNS access