Installation

yarn

yarn add --dev webpack-lambda-layer-plugin

npm

npm i --save-dev webpack-lambda-layer-plugin

Usage

webpack.config.js

import { LambdaLayerExternalsPlugin } from "webpack-lambda-layer-plugin";

const config: WebpackConfiguration = {
  entry: "index.js",
  output: {
    filename: "[name]/handler.js",
    path: path.resolve("dist"),
  },
  
  plugins: [
    new LambdaLayerExternalsPlugin(),
  ],
}

export default config;

This will generate a zip archive dist/externals.zip containing the used node_modules dependencies, alongside your Lambda Function bundles.