Amazon AWS CLI + SQS: Step-by-Step Guide for Beginners | Mastering Amazon SQS with AWS CLI Commands!

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Introduction

Amazon Simple Queue Service (SQS) is a fully managed message queuing service that enables you to decouple and scale microservices, distributed systems, and serverless applications. In this guide, we will learn how to interact with SQS using the AWS Command Line Interface (CLI).

Step 1: Create an IAM Group and User

Before using the CLI, you need the right permissions. First, sign in to your AWS Console and navigate to IAM (Identity and Access Management).

• Create a Group: Name it sqs-full-access-group and attach the AmazonSQSFullAccess policy.
• Create a User: Create a user named sqs-user, provide "Programmatic Access," and add them to the group you just created.
• Important: Download your Access Key ID and Secret Access Key. You will need these for configuration.

Step 2: Configure AWS CLI

Open your command prompt or terminal and run the following command:

aws configure

Enter your Access Key, Secret Key, default region (e.g., us-east-1), and output format (e.g., json).

Step 3: Essential SQS Commands

1. Create a Standard Queue

aws sqs create-queue --queue-name my-standard-queue

2. Create a FIFO Queue

FIFO queues ensure strict ordering and exactly-once processing.

aws sqs create-queue --queue-name my-fifo-queue.fifo --attributes FifoQueue=true

3. Send a Message

aws sqs send-message --queue-url YOUR_QUEUE_URL --message-body "Hello World"

4. Receive a Message

aws sqs receive-message --queue-url YOUR_QUEUE_URL

5. Delete a Message

After processing, use the ReceiptHandle from the receive command to delete the message.

aws sqs delete-message --queue-url YOUR_QUEUE_URL --receipt-handle YOUR_RECEIPT_HANDLE

Best Practices for SQS

• Least Privilege: Only grant the permissions necessary for the task.
• Descriptive Naming: Use names that reflect the purpose of the queue.
• Monitoring: Use Amazon CloudWatch to track message counts and errors.

Conclusion

You have successfully learned how to set up IAM users, configure the AWS CLI, and manage SQS queues. This foundation will help you build scalable and decoupled applications on AWS. Happy coding!