SNS Essentials:

  • SNS coordinates and manages the sending and delivery of messages to specific endpoints.
  • We are able to use SNS to receive notifications when events occur in our AWS Environment.
  • SNS is integrated into many AWS services, so it is very easy to setup notification based on events that occur in those services.
  • With CloudWatch and SNS, a full-environment monitoring solution can be created that notifies administrators of alerts, capacity issues, downtime, changes in the environment, and more!
  • This service can also be used for publishing IOS/Android app notifications, and creating automation based off of notifications.

SNS Components:

  • Topic:
    • The group of subscriptions that you send a message to.
  • Subscription:
    • An endpoint that a message is sent.
    • Available endpoints include:
      • HTTP
      • HTTPS
      • Email
      • Email-JSON
      • SQS
      • Application, Mobile App notification (IOS/Android/Amazon/Microsoft)
      • Lambda
      • SMS (cellular text message)
  • Publisher
    • The "entity" that triggers the sending of a message.
    • Examples include:
      • Human
      • S3 Event
      • CloudWatch Alarm

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