forum-oauth-center/js/webpack.config.js

const config = require("flarum-webpack-config");

module.exports = env => {
  // Determine build mode
  let mode = "development";
  if (env.production) {mode = "production";}
  console.log("Compilation Mode: " + mode);
  let flarumConfig = config({
    resolve: {
      extenstions: [".wasm", ".mjs", ".ts", ".tsx", ".js", ".json"]
    },
    module: {
      rules: [
        {
          resource: {
            and: [/\.(js|ts)$/],
            not: [/node_modules/]
          },
          use: [
            "babel-loader",
            {
              loader: "ts-loader",
              options: {
                transpileOnly: true
              }
            }
          ]
        }
      ]
    }
  });
  flarumConfig.mode = mode;
  return flarumConfig;
};