Setting up SQS locally

SQS will be used in order to notify us when a DynamoDB entry has been created. The REST-based Lambda application will send a message in SQS.

elasticmq is a very popular SQS emulator tool (https://github.com/softwaremill/elasticmq), which covers most of the features provided by SQS.

In order to push data to SQS, a queue should be created. elasticmq provides us with the option to create a queue on initialization.

The configuration will be the following:

//sqs.conf
include classpath("application.conf")
 
queues {
  subscription-event{}
}

Let’s now add the elasticmq configuration to our Compose file:

services:
  sqs:
    image: softwaremill/elasticmq
    ports:
     - 9324:9324
     - 9325:9325
    networks:
     - aws-internal
    volumes:
   ...