How to Set Up AWS S3 to EventBridge Rules for Efficient Data Handling

Imagine AWS S3 as a giant, secure warehouse where you can store all sorts of digital objects — from photos of your cat to important PDFs. Now, think of AWS EventBridge as a smart robot that watches over this warehouse. Whenever something interesting happens (like receiving a new cat photo), EventBridge can perform specific actions, such as notifying you or processing the photo.

Event patterns are like secret codes that tell EventBridge what to watch for in S3. It’s like telling your smart robot to only alert you when a cat photo larger than 3MB arrives, but not to bother you with anything else.

Crafting the Perfect Event Rule

Let’s decode the secret message (or rather, the event rule) you provided and translate it into something we can all understand. 🕵️‍♂️

DetailType and Source

• DetailType: This is like telling the robot to watch for a specific event, in this case, when an object is created in S3.
• Source: This tells the robot that the event will be coming from AWS S3.

Bucket Name

• Bucket Name: Here, you’re specifying which warehouses (buckets) to watch. The ${ENV}-ai-summary-buckets and vonageVbcRecordings are the names of these warehouses. ENV is a placeholder for different environments (like development, staging, or production), making this rule adaptable.

Object Size and Key

• Object Size: This part of the code tells the robot to only care about objects larger than 3MB.
• Key: The key is like the address label on a package. Here, it’s looking for objects ending in .mp3 or .wav, indicating audio files.

Full Event Pattern:

eventPattern: {
          detailType: ['Object Created'],
          source: ['aws.s3'],
          detail: {
            bucket: {
              name: ['bucket-name'],
            },
            object: {
              size: [{
                numeric: [">", 3145728]
              }],
              key: [
                {
                  suffix: '.mp3',
                },
                {
                  suffix: '.wav',
                },
              ],
            },
          },
        },

Practical Use Cases

This setup is perfect for applications that process audio files. Whether you’re transcribing lectures, analyzing customer service calls, or archiving podcasts, this event rule ensures that only relevant, sufficiently large audio files trigger your processing workflows.

Summary

By setting up this specific event rule in AWS EventBridge, you streamline your workflow, ensuring only relevant data triggers your processing logic. It’s like having a highly efficient, automated assistant that knows exactly what you need without being told every single time.