What is SNS – Simple Notification Services?

• Amazon Simple Notification Service is a web service that makes it easy to set up, operate, and send notification from the cloud.
• It provides developers with a highly scalable, flexible, and cost-effective capability to publish messages from an application and immediately deliver them to subscribers or other applications. SNS Topic and Subscribe concepts described. 
  
  
  

  Push Notifications:

• Push notifications to Apple, Google, Fire OS, and Windows devices as well as Android devices in China with Baidu Cloud Push.
  

  
  Create a Topic and Subscribe?

• Let’s go and create a topic and subscribe.
• We will see the step by step process of creating the topic and subscribe.
  
  

  
  LAB:
  
  

• Go and open the AWS Management Console.
• In Find service search SNS -Simple Notification Service.
• Click on SNS.
  
  

Fig.1.0: Shows that Console search page.

Fig. 1.1: Shows that Create topic page.

• Click the Next step to Create a topic.
• Give Name, Display name.
• Tags give tag names and values.
• Leave all options as default.
  
  

Fig.1.2: Shows that Create topic page.

• Click on Create topic.

Fig.1.3: Shows that topic created page.

• Topic suggestcloud_123 created successfully.
• Click on Create subscription.

Fig.1.4: Shows that Create subscription.

Fig.1.5 shows that the subscription page.

• Give protocol as Email.
• Endpoint as an Email address.
• Click on Create subscription.
• You will get mail.

Fig.1.7: Shows that AWS Notification page.

• Click on Confirm Subscription.

Fig.1.6: Shows that Subscription confirmed

• You will get a subscription confirmed page.
  
  
  SNS concept uses in Auto Scaling. Check this blog: Create Auto Scaling Group and Launch EC2 with Load Balancer
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Conclusion:

• SNS is push-based (no polling).
• Simple APIs and easy integration with applications.
• Inexpensive, pay-as-you-go model with no up-front costs.
• SNS Topic and Subscribe used in Auto Scaling. 

 

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