AWS SNS

Amazon Simple Notification Service (SNS) is a fully managed messaging service that enables you to send messages or notifications to distributed systems, microservices, and serverless applications. It allows you to send messages to a variety of endpoints, including email, SMS, HTTP, and Lambda functions.

• Enables a Pub/Sub model for messaging
• Topics = A channel for publishing messages
• Subscriptions = Endpoints that receive messages published to a topic
• Supports multiple message protocols