Amplitude-JavaScript: ReferenceError: window is not defined

Trying to use amplitude-js on node 8.8.1

I got this error when I run: const amplitude = require('amplitude-js');

ReferenceError: window is not defined
    at /root/app/node_modules/amplitude-js/amplitude.js:2427:8
    at commonjsGlobal (/root/app/node_modules/amplitude-js/amplitude.js:2:82)
    at Object.<anonymous> (/root/app/node_modules/amplitude-js/amplitude.js:5:2)
    at Module._compile (module.js:612:30)
    at Object.Module._extensions..js (module.js:623:10)
    at Module.load (module.js:531:32)
    at tryModuleLoad (module.js:494:12)
    at Function.Module._load (module.js:486:3)
    at Module.require (module.js:556:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (/root/app/src/helpers/amplitude.js:3:19)
    at Module._compile (module.js:612:30)
    at Object.Module._extensions..js (module.js:623:10)
    at Module.load (module.js:531:32)
    at tryModuleLoad (module.js:494:12)
    at Function.Module._load (module.js:486:3)
    at Module.require (module.js:556:17)
    at require (internal/module.js:11:18)
...

About this issue

Original URL
State: closed
Created 6 years ago
Reactions: 12
Comments: 19 (4 by maintainers)

Most upvoted comments

I have server side rendering and I simply require only when not in node. In node I mock it. isServer is my custom global variable

import config from "config";

const Amplitude = !global.isServer ? require("amplitude-js") : null;

const instance = Amplitude ? Amplitude.getInstance() : {
  init: () => {},
  logEvent: () => {},
  setUserId: () => {},
  setUserProperties: () => {}
};

instance.init(config.amplitude.apiKey);

export default instance;

mieszko4 on Jun 19, 2018

I have a case that I don’t need amplitude to work, but I need to require it, can you make a way that it just doesn’t do anything on the node case, instead of blowing up?

wilkerlucio on Apr 23, 2020

On this answer, you can use process.browser instead of !global.isServer

I have server side rendering and I simply require only when not in node. In node I mock it. isServer is my custom global variable

import config from "config";

const Amplitude = !global.isServer ? require("amplitude-js") : null;

const instance = Amplitude ? Amplitude.getInstance() : {
  init: () => {},
  logEvent: () => {},
  setUserId: () => {},
  setUserProperties: () => {}
};

instance.init(config.amplitude.apiKey);

export default instance;

jlmonroy13 on Mar 11, 2021

I’m having this problem still with my node express server. Some events cannot be logged on the client. Any chance this will be fixed?

stormfar on Aug 27, 2019