AWS Simple Queue Service is a fully managed AWS service used to queue messages in a serverless environment. Through AWS SQS, messages can be transferred between different software components, applications, and even to other AWS services running inside the same AWS Account. This means that AWS SQS lets different components communicate with each other. AWS SQS keeps highly sensitive and confidential data secure with the help of Amazon Key Management Service:

Let’s discuss the usage and working of the AWS Simple Queue Service in detail.

How Does AWS SQS Work?

Queues in AWS SQS are of two types, i.e., the “Standard Queue” and “FIFO (First in, first out)“. The first in, first out queue processes the messages exactly according to the sequence in which they are sent. In the standard queue, the messages stay in the order in which they were sent, but the order may change while processing. So, the standard queue does not guarantee the perfect order of the messages in the queue:

The messages are sent from the applications and other AWS services. The messages are then stored in the SQS queue, and they stay there in the queue until the consumer asks for the messages. When the consumers (the applications, functions, instances, and services) poll for the messages, the SQS sends them, and then they process the message upon receiving it.

Benefits of AWS SQS

AWS Simple Queue Service has the following benefits:

• There is no need to manage the software and infrastructure of the applications because of the serverless functionality of this service.
• It alone can deliver a huge number of messages without needing any additional message communication application or software.
• It is reliable and delivers data with even high throughputs at a higher speed.
• Using AWS SQS to deliver messages is considered a secure way. So, sensitive data without worrying can be transferred using this AWS service.
• When compared with its competitors, or to be precise, other cloud providers, the AWS SQS is much more cost-effective for the value that it provides to the user. Moreover, it has no upfront costs and is more reliable than some other services providing the same features at a higher cost.

Conclusion

AWS Simple Queue Service is used to exchange messages between different components and applications. It is a very safe, reliable, trusted, and cost-effective service that eliminates the need for any other message transfer or communication application or software to send and receive messages.