AWS Lambda Proxy Integration Response

A small library that wraps object literal building for AWS lambda proxy integration. You can read more about this form of integration here.

Installation

npm install -S lambda-proxy-integration-response

Usage

 const response = require('lambda-proxy-integration-response')();

 exports.handler = (event, context, callback) => {
   
   const okResponse = response.createResponse({body: { data: [] }, statusCode: 200});
   // {statusCode: 200, body: '{"data": []}'}

   callback(null, okResponse);

 };

// New async handler synthax
const response = require('lambda-proxy-integration-response')();

exports.handler = async event => response.ok();

Shorthand methods for common HTTP statuses

• response.ok = response.createResponse({statusCode: 200, ...})
• response.created = response.createResponse({statusCode: 201, ...})
• response.deleted = response.createResponse({statusCode: 204, ...})
• response.badRequest = response.createResponse({statusCode: 400, ...})
• response.unauthorized = response.createResponse({statusCode: 401, ...})
• response.forbidden = response.createResponse({statusCode: 403, ...})
• response.notFound = response.createResponse({statusCode: 404, ...})
• response.unprocessableEntity= response.createResponse({statusCode: 422, ...})
• response.serverError = response.createResponse({statusCode: 500, ...})

Default parameters

Default values for every response. It gets overriden if new values are provided during the function call.

const options = {
  body: { message: 'Hello World' },
  headers: {'Content-Type': 'application/json' }
};

const response = require('lambda-proxy-integration-response')(options);

response.ok();
// { statusCode: 200, headers: { 'Content-Type': 'application/json' }, body: '{"message": "Hello World}'}

response.ok({ body: { message: 'Hey', headers: {} } });
// { statusCode: 200, headers: { }, body: '{"message": "Hey}'}

Tests

npm test