Sns Sqs

Sns Sqs

Amazon Simple Notification Service (Amazon SNS) and Amazon Simple Queue Service (Amazon SQS) are two different AWS (Amazon Web Services) products used for messaging and communication between distributed systems.

1. Amazon Simple Notification Service (Amazon SNS): Amazon SNS is a fully managed messaging service that enables you to send notifications from the cloud to various endpoints or subscribers. It follows a “publish-subscribe” model. With SNS, you can send messages (notifications) to multiple recipients simultaneously, including individuals, groups of users, or even other systems or applications. The messages can be delivered through various protocols like email, SMS, HTTP, or to other AWS services.

Key features of Amazon SNS:

• Support for multiple protocols (e.g., SMS, email, HTTP, HTTPS, mobile push notifications).
• Topic-based message distribution (publish-subscribe model).
• Push-based delivery of messages.
• High-throughput and scalable.

2. Amazon Simple Queue Service (Amazon SQS): Amazon SQS is a fully managed message queuing service that enables decoupling of the components in a distributed system. It follows a “queue-based” model. With SQS, you can send, store, and receive messages between different components or applications without direct communication between them. Messages are stored in a queue and processed asynchronously, allowing for better fault tolerance and scalability.

Key features of Amazon SQS:

• Fully managed and highly available.
• Offers two types of queues: Standard Queue (best-effort ordering) and FIFO Queue (guaranteed ordering).
• Automatic scaling based on the number of requests.
• Long retention of messages (up to 14 days).