import { wrapper } from "@serverless-guy/lambda";

// your wrapper that returns the actual handler
export const handler = wrapper(someHandler);

// your handler
function someHandler(request, response) {
  // both event and context are located in request parameter
  const { event, context } = request;

  console.log(event);
  console.log(context);

  // by default, response function stringifies your object
  return response(event);
}

import { wrapper } from "@serverless-guy/lambda";

// your wrapper that returns the actual handler
export const handler = wrapper(someHandler);

function parse(body) {
  if (!body) {
    return {}
  }

  return JSON.parse(body);
}

// our middleware
export function checkBody(request, next) {
  const { event } = request;

  const body = parse(event.body);

  if (!body.sampleValue1) {
    throw new Error("Validation Failed");
  }

  return next(request);
}

// add the middleware
handler.pushMiddleware(checkBody);

// your handler
function someHandler(request, response) {
  // both event and context are located in request parameter
  const { event, context } = request;

  const body = JSON.parse(event.body);
  console.log(context);

  // by default, response function stringifies your object
  return response({ message: body.sampleValue1 });
}

import { wrapper } from "@serverless-guy/lambda";

// your wrapper that returns the actual handler
export const handler = wrapper(someHandler);

// set the response template function
handler.setResponseTemplate(customResponseTemplate);

// your custom response template function
function customResponseTemplate(data, statusCode = 200, headers = {}) {
    // do something
    data.returnedOn = new Date();

    return {
    body: JSON.stringify(data),
    headers: {
      "Access-Control-Allow-Origin": "*",
      ...headers
    },
    statusCode
  };
}

// your handler
function someHandler(request, response) {
  // both event and context are located in request parameter
  const { event, context } = request;

  console.log(event);
  console.log(context);

  // by default, response function stringifies your object
  return response(event);
}

import { wrapper } from "@serverless-guy/lambda";
 
// your wrapper that returns the actual handler
export const handler = wrapper(someHandler);

// set the response template function
handler.setCatchTemplate(customCatchResponseTemplate);

// your custom error response template function
function customCatchResponseTemplate(error, responseFunction) {
  // do something
  const errorResponseObject = {
    errorCode:    error.name,
    errorMessage: error.message
  };

  return response(errorResponseObject, 418); /** I'm a f***ing teapot */
}

// your handler
function someHandler(request, response) {
  // both event and context are located in request parameter
  const { event, context } = request;

  console.log(event);
  console.log(context);

  // by default, response function stringifies your object
  return response(event);
}