node服务器如何部署https证书

var http = require('http');
var https = require('https');
var path = require('path');
var fs = require('fs');

var options = {
    key: fs.readFileSync(''),
    cert: fs.readFileSync('')
};

var express = require('express');
var app = express();

app.set('trust proxy', 'loopback');

app.use(express.static(path.join(__dirname, 'public')));

require('./config/routes')(app);

app.use(function (req, res, next) {
    var err = new Error('Not Found');
    res.json({
        errormsg: err.status + ' Not Found '
    });
});

app.use(function (req, res, next) {
    res.status(err.status || 500);
    res.json({
        errormsg: err.status
    })
})

http.createServer(app).listen(80);
https.createServer(options, app).listen(443);
console.log('80')
console.log('443')

补充：require('./config/routes')(app); 报错，应该没用，注释掉可以正常使用

https://segmentfault.com/a/1190000008398220

https://www.gaoshilei.com/2017/10/30/hexo-init/