Basic browsersync middleware example

middleware.js

// require the module as normal
var bs = require("browser-sync").create();

// .init starts the server
bs.init({
    files: "dist/css/*.css, dist/js/*.js, **/*.html, !node_modules/**/*.html",
    server: true,
    browser: "firefox",
    middleware: function(req, res, next) {
        console.log(req.url)
        if (req.method.toUpperCase() == 'POST')
            console.log("I'm in a POST req!")
        next();
    }
});

// Now call methods on bs instead of the
// main browserSync module export
bs.reload("*.html");

run with node middleware.js