WebSocket.Server is not a constructor

See original GitHub issue

content is same with title.

I used ‘ws’ module in electron main process not browser.

It work on local environment, but occur error with message ‘WebSocket.Server is not a constructor’ when packaging.

I’m tried to solve this with add external: ['WebSocket', 'WebSocketServer'] in webpack.config.js. but It didn’t work.

anyone who can solve this problem. please, tell me how to solve.

Issue Analytics

  • State:closed
  • Created 4 years ago
  • Reactions:1
  • Comments:13 (2 by maintainers)

github_iconTop GitHub Comments

45reactions
lpincacommented, Oct 16, 2021

There is no ws.Server in the ESM version, use import { WebSocketServer } from 'ws' instead.

8reactions
meoyawncommented, Oct 12, 2021

I’m getting this with ESM:

package.json:

{
  "type": "module",
  "dependencies": {
    "ws": "^8.2.3"
  }
}

import ws from 'ws';

new ws.Server({ port: 8080 });

TypeError: ws.Server is not a constructor
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