NodeJS Websocket how to reconnect when server restarts

Question

In Node.js I\'m using websockets/ws for a WebSocket connection. Below is the code for the client. Let\'s say the server socket we are connecting to goes down for a minute. T

Answer 1

2018-Jan update

Reconnecting to a disconnected web socket is non-trivial, and best delegated to a library. The smallest and most actively maintained library for this purpose at the moment is reconnecting-websocket, which obsoletes joewalnes's library from the other answer. For Node.js specifically, you need to pass a constructor, such as WebSocket:

import WebSocket from 'ws';
import ReconnectingWebSocket from 'reconnecting-websocket';
const ws = new ReconnectingWebSocket('wss://some-feed.com', [], {
  constructor: WebSocket,
  connectionTimeout: ...,  // in milliseconds
  reconnectInterval: ...,
});