SNS CheatSheet

• SNS is a fully managed pub/sub messaging service

• SNS is for Application Integration. It allows decoupled services and apps to communicate with each other

• Topic is a logical access point and communication channel.

• A topic is a able to deliver to multiple protocols.

• You can encrypt topics via KMS.

• Publishes use thw AWS API via AWS CLI or SDK to push messages to a topic. Many AWS services integrate with SNS and act as publishers.

• Subscriptions subscribe to topics. When a topic receives a message it automatically and immediately pushes messages to subscribers.

• All messages published to SNS are stored redundantly across multiple Availability Zones (AZ)

• The following protocols:

• HTTP create webhooks into your web applications.

• Email good for internal email notifications (only supports plain text)

• Email-JSON sends you JSON via email

• AWS Lambda triggers a lambda function

• SMS send a text message

• Platform application endpoints Mobile push