Scorpion Encounters ???? — Adding ES6 support to Serverless Framework

Scorpion Encounters ???? — Adding ES6 support to Serverless FrameworkOmar ReyesBlockedUnblockFollowFollowingFeb 14One of the benefits of using Serverless Frameworks is the ability to use third party plugins.

We will be using the serverless-webpack plugin to add ES6 support to our application.

cd back-end npm install serverless-webpack webpack webpack-node-externals babel-loader babel-core @babel/core –save-devHere we are installing serverless-webpack and its dependencies.

ConfigureFirst we need to add a plugin section to serverless.

yml and include serverless-webpack.

plugins: – serverless-webpackWe then need to add a custom: webpack object with our specific configuration.

custom: webpack: webpackConfig: .



js includeModules: true # enable auto-packing of external modulesserverless.

yml should now look like this:service: scorpion-encounters # NOTE: update this with your service nameplugins: – serverless-webpackcustom: webpack: webpackConfig: .



js includeModules: true # enable auto-packing of external modulesprovider: name: aws runtime: nodejs8.

10functions: getScorpion: # AWS Lambda function handler: handler.

scorpion # Run scorpion function from handler.

js events: # The Events that trigger this Function – http: path: scorpion method: getFinally we need to create a webpack.


js file in the root of our project directory.

This file tells webpacks which javascript files should be transformed through babel with the ES6 preset and which javascript files should not.

const slsw = require("serverless-webpack");const nodeExternals = require("webpack-node-externals");module.

exports = { entry: slsw.


entries, target: "node", // Generate sourcemaps for proper error messages devtool: 'source-map', // Since 'aws-sdk' is not compatible with webpack, // we exclude all node dependencies externals: [nodeExternals()], mode: slsw.



isLocal?."development" : "production", optimization: { // We do not want to minimize our code.

minimize: false }, performance: { // Turn off size warnings for entry points hints: false }, // Run babel on all .

js files and skip those in node_modules module: { rules: [ { test: /.

js$/, loader: "babel-loader", include: __dirname, exclude: /node_modules/ } ] }};That’s it!.We can now modify our handler.

js file and use ES6.

'use strict';const createResponse = (statusCode, message) => { return { statusCode: statusCode, headers: { 'Access-Control-Allow-Origin': '*' }, body: JSON.

stringify(message) };};export const scorpion = async (event, context) => { return createResponse(200, { message: 'Encountered a scorpion!' });};We can re-deploy our application and see the following in the terminalView source codeNext tutorial: Scorpion Encounters ???? — Setup AWS Cognito (Coming soon)Originally published at developandgo.



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