API changes, add documentation

src/web/routes/socketconfig.js

@@ -2,6 +2,7 @@ import IOConfiguration from '../../configuration/ioconfig';
 import NullClusterClient from '../../io/cluster/nullclusterclient';
 import Config from '../../config';
 import CyTubeUtil from '../../utilities';
+import Logger from '../../logger';
 
 export default function initialize(app) {
     const ioConfig = IOConfiguration.fromOldConfig(Config);
@@ -9,13 +10,18 @@ export default function initialize(app) {
 
     app.get('/socketconfig/:channel.json', (req, res) => {
         if (!req.params.channel || !CyTubeUtil.isValidChannelName(req.params.channel)) {
-            return res.status(400).json({
+            return res.status(404).json({
                 error: `Channel "${req.params.channel}" does not exist.`
             });
         }
 
         clusterClient.getSocketConfig(req.params.channel).then(config => {
             res.json(config);
+        }).catch(err => {
+            Logger.errlog.log(err.stack);
+            return res.status(500).json({
+                error: err.message
+            });
         });
     });
 }