add ursa example

examples/ursa.js

@@ -0,0 +1,52 @@
+'use strict';
+
+var LE = require('../');
+var config = require('./config-minimal');
+
+// Note: you should make this special dir in your product and leave it empty
+config.le.webrootPath = __dirname + '/../tests/acme-challenge';
+config.le.server = LE.stagingServer;
+
+
+//
+// Manual Registration
+//
+var le = LE.create(require('../backends/ursa'), config.le);
+le.register({
+  agreeTos: true
+, domains: ['example.com']          // CHANGE TO YOUR DOMAIN
+, email: 'user@email.com'           // CHANGE TO YOUR EMAIL
+}, function (err) {
+  if (err) {
+    console.error('[Error]: node-letsencrypt/examples/ursa');
+    console.error(err.stack);
+  } else {
+    console.log('success');
+  }
+
+  plainServer.close();
+  tlsServer.close();
+});
+
+//
+// Express App
+//
+var app = require('express')();
+app.use('/', le.middleware());
+
+
+//
+// HTTP & HTTPS servers
+// (required for domain validation)
+//
+var plainServer = require('http').createServer(app).listen(config.plainPort, function () {
+  console.log('Listening http', this.address());
+});
+
+var tlsServer = require('https').createServer({
+  key: config.tlsKey
+, cert: config.tlsCert
+, SNICallback: le.sniCallback
+}, app).listen(config.tlsPort, function () {
+  console.log('Listening http', this.address());
+});