webpack.config.js

const path = require("path");

const webpack = require("webpack");

const WebpackNodeExternals = require("webpack-node-externals");
const ReloadServerPlugin = require("./webpack/ReloadServerPlugin");

const cwd = process.cwd();

const filename = "api.js";

module.exports = {
  mode: "development",
  devtool: "eval-cheap-source-map",
  entry: {
    server: ["./src/server.ts"],
  },
  output: {
    path: path.resolve("build"),
    filename,
  },
  target: "node",
  node: {
    __dirname: true,
  },
  externals: [
    WebpackNodeExternals({
      allowlist: ["webpack/hot/poll?1000"],
    }),
  ],
  resolve: {
    extensions: [".ts", ".tsx", ".js", ".json", ".mjs"],
  },
  module: {
    rules: [
      {
        test: /\.mjs$/,
        include: /node_modules/,
        type: "javascript/auto",
      },
      {
        test: /\.(js|jsx|ts|tsx)?$/,
        use: {
          loader: "babel-loader?cacheDirectory",
        },
        exclude: [/node_modules/],
      },
    ],
  },
  plugins: [
    new ReloadServerPlugin({
      script: path.resolve("build", filename),
    }),
    new webpack.DefinePlugin({
      "process.env.NODE_ENV": JSON.stringify("development"),
    }),
  ],
};