Amazon Simple Notification Service¶

TLDR¶

Message queue with a subscriber model. It can send the same message to alot of diffrent services at once. Scales good but not indefinetly.

Features¶

• subscriber async model
• one producer multiple consumers/subscribers
• up to 12 million subscribtions per topic
• up to 100k topics

Sources¶

• CloudWatch alarms
• ASG Notifications
• AWS Budgets AWSBilling
• Lambda
• DynamoDB
• Cloudformation
• ...

Targets¶

• Kinesis Data Firehouse
• SQS
• Lambda
• HTTP
• E-Mail
• push
• sms

Topic Publish¶

• create a topic
• add subscriptions to topic
• publish to the topic

Direct Publish¶

• for mobile apps
• create platform app
• create platform endpoint
• publish to endpoint
• Google GCM
• Apple APNS
• Amazon ADM ...

Security¶

• https by default
• at rest using KMS
• client side optional
• iam for access control
• sns access policies, ressource based for cross account or other services

Fifo¶

• same as SQS Fifo

Filtering¶

• json policies on a subscriber
• will only recive msg which match the filter
• can be used with fan out to split sns msgs to multiple deticated SQS queues