API-15: Error reference codes (#14)

Co-authored-by: Patrick Müller <patrick@mueller-patrick.tech>
Reviewed-on: #14
Co-authored-by: Patrick Müller <patrick@plutodev.de>
Co-committed-by: Patrick Müller <patrick@plutodev.de>

src/models/partyplaner/PartyPlaner.router.ts

@@ -10,6 +10,7 @@ import {eventRouter} from './event/Event.router';
 import {friendshipRouter} from './friendship/Friendship.router';
 import {inviteRouter} from './invite/Invite.router';
 import {sessionRouter} from './session/Session.router';
+import {Guid} from 'guid-typescript';
 
 /**
  * Router Definition
@@ -29,7 +30,12 @@ partyPlanerRouter.get('/', async (req: Request, res: Response) => {
     try {
         res.status(200).send('Pluto Development PartyPlaner API Endpoint V2');
     } catch (e) {
-        logger.error('Error handling a request: ' + e.message);
-        res.status(500).send({'message': 'Internal Server Error. Try again later.'});
+        let errorGuid = Guid.create().toString();
+        logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
+        res.status(500).send({
+            'status': 'PROCESSING_ERROR',
+            'message': 'Internal Server Error. Try again later.',
+            'reference': errorGuid
+        });
     }
 });