Lambda => SNS in punchcard

index.ts

import cdk = require('@aws-cdk/core');
import { Function, Topic, string, integer, timestamp } from 'punchcard';

const app = new cdk.App();
export default app;
const stack = new cdk.Stack(app, 'my-stack');

// create a type-safe SNS Topic
const topic = new Topic(stack, 'Topic', {
  type: struct({
    key: string(),
    count: integer(),
    timestamp
  })
});

new Function(stack, 'MyFunction', {
  // depend on the topic
  depends: topic,
  handle: async (event, topic) => {
    // our handle implementation is passed a type-safe pre-initialized 'topic' instance which can be interacted with
    await topic.publish({
      key: 'some key',
      count: 1,
      timestamp: new Date()
    });
  }
});

@sam-goodwin 👍