using https with next

server.js

const https = require('https')
const { parse } = require('url')
const next = require('next')
const fs = require('fs')

const dev = process.env.NODE_ENV !== 'production'
const app = next({ dev })
const handle = app.getRequestHandler()

const options = {
	key: fs.readFileSync('private/key.pem'),
	cert: fs.readFileSync('private/cert.pem')
}

app.prepare().then(() => {
	https
		.createServer(options, (req, res) => {
			// Be sure to pass `true` as the second argument to `url.parse`.
			// This tells it to parse the query portion of the URL.
			const parsedUrl = parse(req.url, true)

			handle(req, res, parsedUrl)
		})
		.listen(8000, err => {
			if (err) throw err
			// eslint-disable-next-line no-console
			console.log('> Ready on https://localhost:8000')
		})
})