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cdk-eventbridge-socket-2

v0.2.6

Published

This is an AWS CDK Construct that will listen for any EventBridge Bus and Rule and forward that event through a websocket.

Downloads

1

Readme

cdk-eventbridge-socket

This is an AWS CDK Construct that will listen for any EventBridge Bus and Rule and forward that event through a websocket.

Get setup in seconds and as easy as 7 lines of code.

Why

You may want to use tools like Postman Websockets or websocat to see and debug what events are being fired through your event bus.

How

This uses AWS ApiGateway, DynamoDB (to store connections) and Lambda.

Architecture

Installation and Usage

Typescript

npm install --save cdk-eventbridge-socket
import * as cdk from '@aws-cdk/core';

import { EventBridgeWebSocket } from 'cdk-eventbridge-socket';

export class EventbridgeWebhooksStack extends cdk.Stack {
  constructor(scope: cdk.App, id: string, props?: cdk.StackProps) {
    super(scope, id, props);

    new EventBridgeWebSocket(this, 'sockets', {
      bus: 'your-event-bus-name',

      // This example shows how to listen for all events
      eventPattern: {
        account: ['your_account_id'],
      },
      stage: 'dev',
    });
  }
}

When using the cdk-eventbridge-socket the new websocket url will be output on your terminal.

Usage

There are only a few properties you have to set bus, eventPattern and stage.

You can listen to any EventBridge source/pattern you like, just replace the eventPattern with what you want to listen to.

Examples

Listen for a detailType
new EventBridgeWebSocket(this, 'sockets', {
  bus: 'your-event-bus-name',

  // Listens for all UserCreated events
  eventPattern: {
    detailType: ['UserCreated'],
  },
  stage: 'dev',
});
Listen for a source
new EventBridgeWebSocket(this, 'sockets', {
  bus: 'your-event-bus-name',

  // Listens for all events on source
  eventPattern: {
    source: ['myapp.users'],
  },
  stage: 'dev',
});

You can find more here on the AWS documentation

Contributing

If you have any questions, features or issues please raise any issue or pull requests you like. I will try my best to get back to you.

License

MIT.