bfx-api-node-core/lib/ws2/reopen.js

Core Bitfinex Node API

'use strict'

const WebSocket = require('ws')
const open = require('./open')
const bindEV = require('./bind_ev')

module.exports = (state = {}) => {
  const { url, agent, ws: oldWS, channels, autoResubscribe, resubChannels: oldResubChannels = {} } = state

  if (oldWS && oldWS.readyState === WebSocket.OPEN) {
    oldWS.close()
  }

  const { ws } = open(url, agent)

  bindEV({ ws, ev: state.ev })

  state.ev.once('self:open', () => {
    state.ev.emit('self:reopen')
  })

  return {
    ...state,
    channels: {},
    isOpen: false,
    authenticated: false,
    ws,
    ...(autoResubscribe && { resubChannels: { ...oldResubChannels, ...channels } })
  }
}