greenlock-express.js/examples/quickstart/server.js

"use strict";

function httpsWorker(glx) {
    // This can be a node http app (shown),
    // an Express app, or Hapi, Koa, Rill, etc
    var app = function(req, res) {
        res.end("Hello, Encrypted World!");
    };

    // Serves on 80 and 443
    // Get's SSL certificates magically!
    glx.serveApp(app);
}

var pkg = require("../../package.json");
//require("greenlock-express")
require("../../")
    .init(function getConfig() {
        // Greenlock Config

        return {
            // Package name+version is used for ACME client user agent
            package: { name: "websocket-example", version: pkg.version },

            // Maintainer email is the contact for critical bug and security notices
            maintainerEmail: "jon@example.com",

            // Change to true when you're ready to make your app cloud-scale
            cluster: false
        };
    })
    .serve(httpsWorker);