webpack.config.js

// Require the path module from Node.js
const path = require("path");

// Base configuration
const baseConfig = {
  // The entry point of the package
  entry: "./src/index.ts",

  // Configuration for module resolution
  resolve: {
    // Configure fallbacks for Node.js built-in modules
    fallback: {
      // Fallback for the buffer module, using the buffer module
      buffer: require.resolve("buffer/"),
      fs: false,
      path: false,
    },
    // Extensions that are used to resolve modules
    extensions: [".ts", ".js"],
  },

  // Configuration for source maps
  devtool: "source-map",

  // The mode to use for the webpack build
  mode: "development",
};

// Base configuration
const baseConfigUmd = {
  ...baseConfig,

  // Configuration for the output file
  output: {
    // The filename of the output file will be specified in each config
    // The path to the output directory, __dirname is the directory of the current module
    path: path.resolve(__dirname, "."),
    // The type of the exported library
    libraryTarget: "window", // for UMD we use window
    // The name of the library as it should be exposed in the global scope
    library: "aaveAptos",
    // The global object in which the library will be assigned to
    globalObject: "this",
  },

  // Configuration for modules
  module: {
    // Array of rules that are used to find and load modules
    rules: [
      {
        // Regular expression that matches the file extensions that this rule applies to
        test: /\.ts$/,
        // The loader that should be used for the files that match the test regular expression
        loader: "ts-loader",
        // A condition that must not be met to use this rule
        exclude: /node_modules/,
        options: {
          configFile: "tsconfig.commonjs.json",
        },
      },
    ],
  },
};

// Export the webpack configuration object
module.exports = [
  // UMD minified
  {
    ...baseConfigUmd,
    output: {
      ...baseConfigUmd.output,
      filename: "bundle.min.js",
    },
    optimization: {
      minimize: true,
    },
  },

  // UMD - non-minified
  {
    ...baseConfigUmd,
    output: {
      ...baseConfigUmd.output,
      filename: "bundle.js",
    },
    optimization: {
      minimize: false,
    },
  },
];