AWS CodeDeploy - Lambda hook (Node.js)

index.js

const AWS = require('aws-sdk');
const codedeploy = new AWS.CodeDeploy();

exports.handler = async (event, context) => {
    const {DeploymentId, LifecycleEventHookExecutionId} = event;
    const functionToTest = process.env.NewVersion;  // to be defined in CFN

    /* Enter validation tests here */

    const status = 'Succeeded'; // 'Succeeded' or 'Failed'
    
    // Pass AWS CodeDeploy the prepared validation test results.
    return await codedeploy.putLifecycleEventHookExecutionStatus({
        deploymentId: DeploymentId,
        lifecycleEventHookExecutionId: LifecycleEventHookExecutionId,
        status:  status
    }).promise();
};