success-lambda-proxy.js

module.exports.hello = (event, context, callback) => {
  const response = {
    statusCode: 200,
    headers: {
      "x-custom-header" : "my custom header value"
    },
    body: JSON.stringify({
      message: 'Go Serverless v1.0! Your function executed successfully!',
      input: event,
    }),
  };

  // success response
  callback(null, response);
};