SNS
SNS (Simple Notification Service)
A notification service generally used in conjunction with CloudWatch to email or text alerts when some event occurs in account
What is it? Sending email or text message notifications, based on events in your AWS account.
Two types of clients:
publishers
subscribers
How to use
create topic
create subscription
Basic components
Topics
how you label and group different endpoints that you send messages to
Subscriptions
the endpoints that a topic sends messages to (i.e. email address or phone number of our system admin)
Free tier available.
Publishes
number of SNS request (message that needs to be sent)
Notification Deliveries
number of subscribers the message is sent to
Data transfer in/out of SNS
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