safetwitch/server/index.ts

import express, { Express, NextFunction, Request, Response } from 'express';
import dotenv from 'dotenv'
import history from 'connect-history-api-fallback'
import routes from './routes'
import { errorHandler, uuid } from './util/logger'
import { wsServer } from './routes/proxyRoute';

dotenv.config()

const app: Express = express();
const port = process.env.PORT


app.use(uuid)
app.use(routes)
app.use(history())
app.use(express.static('../frontend/dist'))

// 404 handler
app.use((req, res) => {
  if (!res.headersSent) {
    res.status(404).send('404')
  }
});

// handle errors
app.use(errorHandler)

const server = app.listen(port, () => {
  console.log('Server up')
})
server.on('upgrade', (request, socket, head) => {
  wsServer.handleUpgrade(request, socket, head, socket => {
    wsServer.emit('connection', socket, request);
  });
});