Handle logic for webhook using AWS EvenBridge

Webhooks and Events
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1

Hi everyone,
I’m handling my webhook orders/create and passed it to AWS EventBridge (follow this guide Subscribe to a webhook topic). The message event detail was sent to EventBridge so how can I handle my custom logic (eg: store or update my custom db) for that event detail? I see many guides for pass webhook data to EventBridge but no one for handle custom logic after received that message.
My app is using Lambda function & SST for deployment.

Please help point out help me.
Thanks

2

Hi @KyleG-Shopify @Liam-Shopify , do you know about this?

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Hey @huykon225!

I’m not personally too familiar with the handling custom logic within Eventbridge.

I did find this userguide here, that looks to be a more high-level guide on how to manage this: What Is Amazon EventBridge? - Amazon EventBridge

Hopefully other members of the community that are using eventbridge in their app will chime in to help further.

4

Assuming that you’re ultimately trying to trigger the Lambda function, which will perform the DB interaction, I believe you have the following options:

1. EventBridge → Lambda (Direct)

  • Best for: Simple, low-volume use cases.
  • Pros: Easy setup.
  • Cons: Limited retries, no buffering — risk of losing events if Lambda fails or is throttled. You’ll need to setup a DLQ to ensure events aren’t lost.

2. EventBridge → SQS → Lambda

  • Best for: Production setups where reliability and scale matter.
  • Pros: Adds buffering, durable retries, and helps absorb traffic spikes. A widely recommended pattern for webhook processing.

3. EventBridge → Step Functions → Lambda(s)

  • Best for: Multi-step workflows or complex retry logic.
  • Pros: Fine-grained control over flow, timeouts, and error handling.

4. EventBridge → SNS → Lambda

  • Best for: Fan-out scenarios.
  • Pros: Broadcast a single event to multiple consumers (e.g., multiple Lambdas or services).

I think for most Shopify webhook use cases, EventBridge → SQS → Lambda offers the best tradeoff between reliability and flexibility.

If you’re not tied to EventBridge, then Hookdeck (who I work for) may be a similarly scalable but simpler option.