serverless/tests/integration/aws/api-gateway/integration-lambda-proxy/api-keys/service/handler.js

'use strict';

module.exports.hello = (event, context, callback) => {
  const response = {
    statusCode: 200,
    body: JSON.stringify({
      message: 'Hello from API Gateway!',
      event,
    }),
  };

  callback(null, response);
};