Assuming I have middleware such as this;

var express = require('express');

var app = express();



app.use(function (req, res, next) {

    var host = example.com;



    if (req.host !== host) {

        res.redirect(301, host + req.originalUrl);

        res.end();

    }

});

What sort of rules do I need to abide by here?

1. Should I be calling res.end()? (or does res.redirect() do this for me?)


2. Should I be calling next()? (or does connect detect the request has ended and exit cleanly?)


3. Assuming that I should be calling next(), I guess that means I can potentially be receiving requests to my middleware which may have already been ended by other middleware higher in the chain; how do I protect myself against this?