Lambda@Edge custom origin

custom_origin_request.js

function updateOriginRequest(request) {
  request.origin = {
    custom: {
      domainName: 'some-domain.example.com', // this is the origin where you want to route the request
      port: 80, // or 443
      protocol: 'http', // http or https
      path: '/some-path', // path of the reqest
      sslProtocols: ['TLSv1', 'TLSv1.1'], // and any other protocols supported by cloudfront
      readTimeout: 10, //readTimeout in seconds,
      keepaliveTimeout: 60, // in seconds
      customHeaders: {'X-AB-Test': 'A'} // other custom headers
    }
  };
}