iundarigun / sample-sqs

This repo aims to give an example to produce and consume on SQS and SNS

SQS

This repo aims to test SQS and SQS with Spring boot.

Projects on this repo:

• sqs-sdk-sample: An implementation using SDK.
• sqs-spring-sample: An implementation using Spring Cloud AWS

The sqs-spring-sample can be run with localstack using profile local. To run it in local with docker:

docker run --rm -it -e SERVICES=sqs,sns -p 4566:4566 -p 4571:4571 localstack/localstack

On both projects, we need to configure credentials:

## sqs-sdk-sample
aws:
  access-key: <access key>
  secret-key: <secret key>

## sqs-spring-sdk
cloud:
  aws:
    credentials:
      access-key: <access key>
      secret-key: <secret key>
    region:
      static: us-east-1

Create SQS and SNS using console

To see how create an SQS and SNS using AWS console, you can see this repo: https://github.com/iundarigun/learning-aws#sqs-and-sns

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To Keep in mind

SQS has a timeout to "process" message. After this, the message returns to the queue and is available to other application get it.

Short polling vs Long polling

We can open connection and wait for a time to receive message. If the time expires without messages, the get finish. If when is waiting arrive a message, we will get this message and the process finish without waiting the max time configured.

Fifo queues

Try to keep order

CLI

Some instructions to use SQS by CLI:

aws sqs help
aws sqs queue-list
aws sqs send-message --queue-url https://sqs.us-east-1.amazonaws.com/654569462902/devcave-test --message-body "hello world"
aws sqs receive-message --queue-url https://sqs.us-east-1.amazonaws.com/654569462902/devcave-test
aws sqs delete-queue --queue-url https://sqs.us-east-1.amazonaws.com/654569462902/devcave-test
aws sqs create-queue --queue-name devcave-test

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References

• https://docs.awspring.io/spring-cloud-aws/docs/current/reference/html/index.html
• https://cursos.alura.com.br/course/aws-sqs-mensageria-desacoplamento-sistemas
• https://reflectoring.io/spring-cloud-aws-sqs/
• https://montivaljunior.medium.com/utilizando-spring-cloud-com-aws-sqs-e-localstack-d5bf66ea3151
• https://github.com/localstack/localstack