lambda-response

The goal is to have a minimalist lib to wrap AWS lambda responses.

All the functions generate for you an APIGatewayProxyResult from 'aws-lambda'.

For most cases you just have to pass the body to the function and everything will be wrapped for you.

By default content-type header is set to application/json, but you can overwrite it if you want in the opts.

Installation

Using npm:

npm install esm-lambda-response

or yarn

yarn add esm-lambda-response

Usage

Standard usage example

import {
  APIGatewayProxyEvent,
  APIGatewayProxyResult,
} from 'aws-lambda';
import { httpResponse, notFound } from 'esm-lambda-response';

export const handler = async (event: APIGatewayProxyEvent): Promise<APIGatewayProxyResult> => {
  ...
  if (somethingNotFound) {
    return notFound('Something not found');
  }

  return httpResponse(200, { bodyParam: 'value' });
}

Advanced options

You can define your own headers if you want. It is easy:

export const handler = async (event: APIGatewayProxyEvent): Promise<APIGatewayProxyResult> => {
  return httpResponse(200, undefined, {
    headers: {
      custom: 'header',
    },
  });
}

Note: You can pass undefined as a body, in that case it will be converted to {}

Contribution

TBD