Update main.js

main.js

@@ -36,6 +36,17 @@
 // you have to require the utils module and call adapter function
 const utils =    require(__dirname + '/lib/utils'); // Get common adapter utils
 
+// load additional libraries
+var express    = require('express');        // call express
+var request    = null; // will be initialized later if polling enabled
+
+// REST server
+var webServer  = null;
+var app        = null;
+var router     = null;
+var timer      = null;
+
+
 // you have to call the adapter function and pass a options object
 // name has to be set and has to be equal to adapters folder name and main file name excluding extension
 // adapter will be restarted automatically every time as the configuration changed, e.g system.adapter.doorgate.0
@@ -92,6 +103,138 @@ adapter.on('ready', function () {
     main();
 });
 
+
+function addRoutes(_router) {
+    // test route to make sure everything is working (accessed at GET http://localhost:9090/api)
+    _router.get('/', function (req, res) {
+        res.json({message: 'Welcome to our JSON REST api!'});
+    });
+
+    _router.get('/plain/', function(req, res) {
+        res.send('Welcome to our text REST api!');
+    });
+
+    // on routes that end in /plain/:id
+    // ----------------------------------------------------
+    _router.route('/plain/:id')
+        // get the bear with that id (accessed at GET http://localhost:8080/api/plain/:id)
+        .get(function (req, res) {
+            adapter.getForeignState(req.params.id, {user: req.user}, function (err, state) {
+                if (err) {
+                    res.status(500).send(err);
+                } else if (!state) {
+                    res.status(500).send('not found');
+                } else {
+                    res.send('Value: ' + state.val);
+                }
+            });
+        })// create a handler for post (accessed at POST http://localhost:8080/api/bears)
+        .post(function (req, res) {
+            adapter.setForeignState(req.params.id, req.body, {user: req.user}, function (err, state) {
+                if (err) {
+                    res.status(500).send(err);
+                } else if (!state) {
+                    res.status(500).send('not found');
+                } else {
+                    res.send('Value used');
+                }
+            });
+        });
+
+    // handler for get over JSON
+    _router.route('/:id')
+        // get the bear with that id (accessed at GET http://localhost:8080/api/plain/:id)
+        .get(function (req, res) {
+            adapter.getForeignState(req.params.id, {user: req.user}, function (err, state) {
+                if (err) {
+                    res.status(500).send({error: err});
+                } else {
+                    res.json(state);
+                }
+            });
+        });
+}
+
+function initWebServer(settings) {
+    app    = express();
+    router = express.Router();
+
+    // install authentication
+    app.get('/', function (req, res) {
+        if (settings.auth) {
+            var b64auth = (req.headers.authorization || '').split(' ')[1] || '';
+            var loginPass = new Buffer(b64auth, 'base64').toString().split(':');
+            var login     = loginPass[0];
+            var password  = loginPass[1];
+
+            // Check in yunkong2 user and password
+            adapter.checkPassword(login, password, function (result) {
+                if (!result) {
+                    adapter.log.error('Wrong user or password: ' + login);
+                    res.set('WWW-Authenticate', 'Basic realm="nope"');
+                    res.status(401).send('You shall not pass.');
+                } else {
+                    req.user = login;
+                }
+            });
+        } else {
+            req.user = settings.defaultUser;
+        }
+    });
+
+    // add route cases
+    addRoutes(router);
+
+    // REGISTER OUR ROUTES -------------------------------
+    // all of our routes will be prefixed with /api
+    app.use('/api', router);
+
+    if (settings.port) {
+        if (settings.secure) {
+            if (!adapter.config.certificates) {
+                adapter.log.error('certificates missing');
+                return null;
+            }
+        }
+
+        webServer = LE.createServer(app, adapter.config, adapter.config.certificates, adapter.config.leConfig, adapter.log);
+
+        adapter.getPort(settings.port, function (port) {
+            if (port != settings.port && !adapter.config.findNextPort) {
+                adapter.log.error('port ' + settings.port + ' already in use');
+                process.exit(1);
+            }
+            webServer.listen(port, settings.bind, function() {
+                adapter.log.info('Server listening on http' + (settings.secure ? 's' : '') + '://' + settings.bind + ':' + port);
+            });
+        });
+    } else {
+        adapter.log.error('port missing');
+        process.exit(1);
+    }
+}
+
+function pollData() {
+    // you can read about module "request" here: https://www.npmjs.com/package/request
+    request = request || require('request'); // load library
+    request(adapter.config.pollURL, function (error, response, body) {
+        if (error || response.statusCode !== 200) {
+            adapter.log.error(error || response.statusCode);
+        } else {
+            // try to parse answer
+            try {
+                var data = JSON.parse(body);
+                // do something with data
+                adapter.log.info(JSON.parse(data));
+                
+            } catch (e) {
+                adapter.log.error('Cannot parse answer');
+            }
+        }
+    });
+}
+
+
 function main() {
 
     // The adapters config (in the instance object everything under the attribute "native") is accessible via