circles/webpack.config.js

const path = require('path');
const webpack = require('webpack');

module.exports = {
    mode: 'development', // or 'production'
    entry: "./dist/client/main.js",
    output: {
        path: path.resolve(__dirname, "dist", "public"),
        filename: "main.js"
    },
    resolve: {
        fallback: {
            // crypto + compression
            crypto: require.resolve('crypto-browserify'),
            zlib: require.resolve('browserify-zlib'),

            // streams & utilities
            stream: require.resolve('stream-browserify'),
            buffer: require.resolve('buffer'),
            util: require.resolve('util'),
            assert: require.resolve('assert'),
            process: require.resolve('process/browser'),

            // networking
            http: require.resolve('stream-http'),
            https: require.resolve('https-browserify'),

            // URL + PATH polyfills
            url: require.resolve('url/'),
            path: require.resolve('path-browserify'),

            querystring: require.resolve('querystring-es3'),
            vm: require.resolve("vm-browserify"), 
            timers: require.resolve("timers-browserify"),
            fs: false,
        },
    },
    plugins: [
        new webpack.ProvidePlugin({
            process: 'process/browser',
            Buffer: ['buffer', 'Buffer'],
        }),
    ],
};