AWS Simple Notification Service
Amazon Simple Notifcation Service (Amazon SNS) is a web service that makes it easy to set up, operate and send notifications from the cloud.
Deliver Notifications to Subscribers. Push Notifications to:
- Apple
- Fire OS
- Windows
- Android Devices
SNS Can also deliver SMS Text Messages or email, or trigger lambda functions.
Push Messaging System.
SNS Allows you to group multiple recipients using topics. A topic is an
access point for allowing recipients to dynamically subscribe for identical copies of the same notification.
For example you can group together iOS, and Android and SMS recipients. When you publish once to a topic, SNS delivers appropriately formatted copies to each subscriber.
Use cases:
- CloudWatch
- Auto scaling groups
- Billing Alarms
SNS Subscribers
- HTTP
- HTTPS
- Email json
- SQS
- Application
- Lambda
Benefits of SNS
- Instantaneous, push-based delivery (no polling, like SQS)
- Simple APIs
- flexible message delivery groups
- Inexpensive, pay-as-you model with no up-front costs
SNS vs SQS
- Both Messaging Service
- SNS - Push
- SQS - Polls (Pulls)
Pricing
- Users pay $0.50 per 1 million Amazon SNS Requests
- $0.06 per 100.000 Notification deliveries over HTTP
- $0.75 per 100 SMS
- $2.00 per 100.000 deliveries over Email
