Redirect HTTP to HTTPS nodeJs (http2https.js)

http2https.js

// Make sure to run the code using sudo as port 80 needs sudo access 

const http = require('http');

const server = http.createServer((req, res) => {
  res.writeHead(301,{Location: `https://${req.headers.host}${req.url}`});
  res.end();
});

server.listen(80);
console.log(`http2https ==> 80:443`);

A more generic solution can be achieved with a simple middleware

app.use(function(request, response, next) {
    if (process.env.NODE_ENV != 'development' && !request.secure) {
       return response.redirect("https://" + request.headers.host + request.url);
    }
    next();
})