databank verbinding in app.ts uitgezet, dummy json bodies toegevoegd in verschillende routes

backend/src/routes/assignment.ts

@@ -3,7 +3,14 @@ const router = express.Router();
 
 // information about an assignment with id 'id'
 router.get('/:id', (req, res) => {
-    res.send('assignment');
+    res.json({
+        id: req.params.id,
+        title: 'Dit is een test assignment',
+        description: 'Een korte beschrijving',
+        groups: [ '0' ],
+        learningPath: '0',
+        class: '0'
+    });
 })
 
 export default router