Building you first Serverless app in Node.js with AWS Lambda + S3 + API Gateway

serverless-app-1.js

exports.handler = async (event) => {
    return sendRes(200,'Hello');
};

const sendRes = (status, body) => {
  var response = {
    statusCode: status,
    headers: {
      "Content-Type": "text/html"
    },
    body: body
  };
  return response;
};