Clean CodePipeline notifications with CloudWatch Events and AWS Lambda

index.js

var SNS = require('aws-sdk/clients/sns')
var sns = new SNS()

exports.handler = async (event) => {
  console.log(JSON.stringify(event))
  const params = {
    Message: `Deploy of ${process.env.BRANCH} ${event.detail.state}`,
    TopicArn: process.env.TOPIC_ARN,
    Subject: `Deploy ${event.detail.state}`
  }
  console.log(JSON.stringify(params))
  return await sns.publish(params).promise()
}