интеграция webpack и kafka-узла

Я пытаюсь интегрировать в HTML файл Javascript, написанный мной. Поскольку для скрипта требуется kafka-node, чтобы создать что-то вроде этого, я пытаюсь использовать webpack для того, чтобы связать все. Я использую это руководство для начала работы и адаптирую его для моего конкретного случая. Единственное, что я меняю, - index.js файл index.js, index.js мой скрипт следующим образом:

import _ from 'kafka-node';

document.write("Starting Javascript Kafka Consumer...");

var kafka = require('kafka-node'),
    Consumer = kafka.Consumer,
    client = new kafka.Client("127.0.0.1:2181"),
    consumer = new Consumer( ...

...

Я использую тот же файл конфигурации, что и в вышеприведенной ссылке, приведенной выше.

Я запустил npm install --save-dev webpack и npm install --save kafka-node. Это мой вывод:

./node_modules/.bin/webpack --config webpack.config.js 
Hash: f2fd34c274324b3ac92a
Version: webpack 3.4.1
Time: 1475ms
    Asset     Size  Chunks                    Chunk Names
bundle.js  1.48 MB       0  [emitted]  [big]  main
   [6] (webpack)/buildin/global.js 509 bytes {0} [built]
  [39] (webpack)/buildin/module.js 517 bytes {0} [built]
  [69] ./src/index.js 890 bytes {0} [built]
 [103] ./node_modules/optional 160 bytes {0} [optional] [built]
 [112] ./node_modules/buffermaker ^.*BufferMaker$ 205 bytes {0} [built]
 [122] ./node_modules/node-zookeeper-client/lib/jute 160 bytes {0} [built]
    + 139 hidden modules

WARNING in ./node_modules/node-zookeeper-client/lib/jute/index.js
771:20-47 Critical dependency: the request of a dependency is an expression

WARNING in ./node_modules/optional/optional.js
6:11-26 Critical dependency: the request of a dependency is an expression

ERROR in ./node_modules/kafka-node/lib/client.js
Module not found: Error: Can't resolve 'net' in '/home/work-xpandit/consumerJS/node_modules/kafka-node/lib'
 @ ./node_modules/kafka-node/lib/client.js 3:10-24
 @ ./node_modules/kafka-node/kafka.js
 @ ./src/index.js

ERROR in ./node_modules/kafka-node/lib/kafkaClient.js
Module not found: Error: Can't resolve 'net' in '/home/work-xpandit/consumerJS/node_modules/kafka-node/lib'
 @ ./node_modules/kafka-node/lib/kafkaClient.js 10:12-26
 @ ./node_modules/kafka-node/kafka.js
 @ ./src/index.js

ERROR in ./node_modules/kafka-node/lib/client.js
Module not found: Error: Can't resolve 'tls' in '/home/work-xpandit/consumerJS/node_modules/kafka-node/lib'
 @ ./node_modules/kafka-node/lib/client.js 5:10-24
 @ ./node_modules/kafka-node/kafka.js
 @ ./src/index.js

ERROR in ./node_modules/kafka-node/lib/kafkaClient.js
Module not found: Error: Can't resolve 'tls' in '/home/work-xpandit/consumerJS/node_modules/kafka-node/lib'
 @ ./node_modules/kafka-node/lib/kafkaClient.js 12:12-26
 @ ./node_modules/kafka-node/kafka.js
 @ ./src/index.js

ERROR in ./node_modules/node-zookeeper-client/index.js
Module not found: Error: Can't resolve 'net' in '/home/work-xpandit/consumerJS/node_modules/node-zookeeper-client'
 @ ./node_modules/node-zookeeper-client/index.js 19:24-38
 @ ./node_modules/kafka-node/lib/consumerGroupMigrator.js
 @ ./node_modules/kafka-node/lib/consumerGroup.js
 @ ./node_modules/kafka-node/kafka.js
 @ ./src/index.js

ERROR in ./node_modules/node-zookeeper-client/lib/ConnectionManager.js
Module not found: Error: Can't resolve 'net' in '/home/work-xpandit/consumerJS/node_modules/node-zookeeper-client/lib'
 @ ./node_modules/node-zookeeper-client/lib/ConnectionManager.js 8:10-24
 @ ./node_modules/node-zookeeper-client/index.js
 @ ./node_modules/kafka-node/lib/consumerGroupMigrator.js
 @ ./node_modules/kafka-node/lib/consumerGroup.js
 @ ./node_modules/kafka-node/kafka.js
 @ ./src/index.js

ERROR in ./node_modules/node-zookeeper-client/lib/jute/index.js
Module not found: Error: Can't resolve 'fs' in '/home/work-xpandit/consumerJS/node_modules/node-zookeeper-client/lib/jute'
 @ ./node_modules/node-zookeeper-client/lib/jute/index.js 14:9-22
 @ ./node_modules/node-zookeeper-client/index.js
 @ ./node_modules/kafka-node/lib/consumerGroupMigrator.js
 @ ./node_modules/kafka-node/lib/consumerGroup.js
 @ ./node_modules/kafka-node/kafka.js
 @ ./src/index.js

ERROR in ./node_modules/buffermaker/test/BufferMaker.js
Module not found: Error: Can't resolve 'should' in '/home/work-xpandit/consumerJS/node_modules/buffermaker/test'
 @ ./node_modules/buffermaker/test/BufferMaker.js 1:0-17
 @ ./node_modules/buffermaker ^.*BufferMaker$
 @ ./node_modules/buffermaker/index.js
 @ ./node_modules/kafka-node/lib/protocol/protocol.js
 @ ./node_modules/kafka-node/lib/protocol/index.js
 @ ./node_modules/kafka-node/kafka.js
 @ ./src/index.js

Какие-нибудь мысли?