README

CDK Pattern highlighting an architectual pattern that connects an SNS Message Producer to a Step Function by using EventBridge and SQS

Supports the article posted at Binaryheap

Description of the Flow

• A publisher submits a message to SNS
• SNS will then trigger the message and post into an SQS. The subscription needs to be marked as Raw Message Delivery
• An EventBridge Pipe listens to the SQS and then
  • Filters the message for types of events it's interested in
  • Tranforms the body from an SQS Message Body into something more usable for an EventBus
• A Custom Event Bus has a Rule that handles the message and targets a Step Function
• The State Machine is triggered and just does a Succeed tasks (more workflow could surely be added)

Running the Solution

Deploying

To Deploy, run

make local-deploy

This will execute

• CDK synth
• Deploy out to your AWS Environment configured in your ~/.aws/profile

Triggering the workflow

Post a message onto the SNS Topic with the following structure

{
    "eventType": "SampleEvent",
    "field1": "Sample Field 1",
    "field2": "Sample Field 2",
    "field3": "Sample Field 3"
}