setupProxy.js

const pkg = require('../package.json');
const { createProxyMiddleware } = require('http-proxy-middleware');
const target = process.env.PROXY || pkg.proxy;

module.exports = function (app) {
  app.use(
    createProxyMiddleware('/api', {
      target
    })
  );
  app.use(
    createProxyMiddleware('/ws', {
      target: target.replace(/^http(s?):\/\//, "ws$1://"),
      ws: true
    })
  );
};