Sending and receiving messages in AWS - Mini Project: Build & Apply

Sending and receiving messages with AWS SQS

📖 Scenario: You are building a simple messaging system using AWS Simple Queue Service (SQS). This system will send messages to a queue and then receive messages from it. This is useful for decoupling parts of an application so they can communicate reliably.

🎯 Goal: Create an AWS SQS queue, send a message to it, and then receive the message from the queue using AWS CLI commands.

📋 What You'll Learn

Create an SQS queue named MyTestQueue

Send a message with the exact body Hello from AWS SQS to MyTestQueue

Receive the message from MyTestQueue

Delete the message from the queue after receiving it

💡 Why This Matters

🌍 Real World

Messaging queues like AWS SQS are used in real applications to connect different parts of a system reliably, such as processing orders, notifications, or background tasks.

💼 Career

Understanding how to send and receive messages with SQS is a key skill for cloud engineers and developers working with distributed systems and serverless architectures.

1

Create an SQS queue

Use the AWS CLI command to create an SQS queue named MyTestQueue. Write the exact command starting with aws sqs create-queue --queue-name MyTestQueue.

AWS

# Your command here

Need a hint?

Use the AWS CLI create-queue command with the --queue-name option.

2

Send a message to the queue

Send a message with the body Hello from AWS SQS to the queue MyTestQueue using the AWS CLI. Use the command starting with aws sqs send-message --queue-url and include the exact message body with --message-body "Hello from AWS SQS".

AWS

aws sqs create-queue --queue-name MyTestQueue
# Your command here

Need a hint?

First, get the queue URL from the output of the create-queue command or AWS Console. Then use send-message with --message-body.

3

Receive the message from the queue

Use the AWS CLI command to receive a message from MyTestQueue. Write the command starting with aws sqs receive-message --queue-url and include the queue URL.

AWS

aws sqs create-queue --queue-name MyTestQueue
aws sqs send-message --queue-url https://sqs.us-east-1.amazonaws.com/123456789012/MyTestQueue --message-body "Hello from AWS SQS"
# Your command here

Need a hint?

Use receive-message with the queue URL to get messages from the queue.

4

Delete the received message from the queue

After receiving the message, delete it from MyTestQueue using the AWS CLI. Use the command starting with aws sqs delete-message --queue-url and include the --receipt-handle parameter with the receipt handle from the received message.

AWS

aws sqs create-queue --queue-name MyTestQueue
aws sqs send-message --queue-url https://sqs.us-east-1.amazonaws.com/123456789012/MyTestQueue --message-body "Hello from AWS SQS"
aws sqs receive-message --queue-url https://sqs.us-east-1.amazonaws.com/123456789012/MyTestQueue
# Your command here

Need a hint?

Use the receipt handle from the received message to delete it with delete-message.