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

backend/src/routes/student.ts

@@ -2,24 +2,32 @@ import express from 'express'
 const router = express.Router();
 
 // the list of classes a student is in
-router.get('/:id/class', (req, res) => {
-    res.send('classes');
+router.get('/:id/classes', (req, res) => {
+    res.json({
+        classes: [ '0' ],
+    });
 })
 
 // the list of submissions a student has made
-router.get('/:id/submission', (req, res) => {
-    res.send('submissions');
+router.get('/:id/submissions', (req, res) => {
+    res.json({
+        submissions: [ '0' ],
+    });
 })
 
   
 // the list of assignments a student has
-router.get('/:id/assignment', (req, res) => {
-    res.send('assignments');
+router.get('/:id/assignments', (req, res) => {
+    res.json({
+        assignments: [ '0' ],
+    });
 })
   
 // the list of groups a student is in
-router.get('/:id/group', (req, res) => {
-    res.send('groups');
+router.get('/:id/groups', (req, res) => {
+    res.json({
+        groups: [ '0' ],
+    });
 })
 
 export default router