WebRTC 信令服务器
node.js & V8 libuv
socket.io
node-static
SSR
https://github.com/cloudhead/node-static
const static = require('node-static');
const http = require('http');
const file = new(static.Server)();
const app = http.createServer(function (req, res) {
file.serve(req, res);
}).listen(2020);
ref
https://segmentfault.com/a/1190000018575278