If you want to redirect your website to HTTPS connection implement bellow code

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

app.use(function(req,res,next) {
    if(req.headers["x-forwarded-proto"] == "http") {
        res.redirect("https://trinitytuts.com" + req.url);
    } else {
        return next();
    } 
});

Hope this small tip help you 🙂