diff --git a/backend/package.json b/backend/package.json
index 85a4d255..8aae346d 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -14,9 +14,10 @@
         "test:unit": "vitest --run"
     },
     "dependencies": {
-        "@mikro-orm/core": "^6.4.6",
-        "@mikro-orm/postgresql": "^6.4.6",
-        "@mikro-orm/reflection": "^6.4.6",
+        "@mikro-orm/core": "6.4.6",
+        "@mikro-orm/postgresql": "6.4.6",
+        "@mikro-orm/sqlite": "6.4.6",
+        "@mikro-orm/reflection": "6.4.6",
         "dotenv": "^16.4.7",
         "express": "^5.0.1"
     },
diff --git a/backend/src/app.ts b/backend/src/app.ts
index 532f7734..b21ca26b 100644
--- a/backend/src/app.ts
+++ b/backend/src/app.ts
@@ -1,5 +1,5 @@
 import express, { Express, Response } from 'express';
-import initORM from './orm.js';
+import { initORM } from './orm.js';
 
 import studentRouter from './routes/student';
 import groupRouter from './routes/group';
@@ -30,7 +30,7 @@ app.use('/login', loginRouter);
 
 
 async function startServer() {
-    await initORM();
+    //await initORM();
 
     app.listen(port, () => {
         console.log(`Server is running at http://localhost:${port}`);
diff --git a/backend/src/routes/assignment.ts b/backend/src/routes/assignment.ts
index 0a3b4c02..95116243 100644
--- a/backend/src/routes/assignment.ts
+++ b/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
\ No newline at end of file
diff --git a/backend/src/routes/class.ts b/backend/src/routes/class.ts
index 746e8662..c9fe4259 100644
--- a/backend/src/routes/class.ts
+++ b/backend/src/routes/class.ts
@@ -3,7 +3,15 @@ const router = express.Router();
 
 // information about an class with id 'id'
 router.get('/:id', (req, res) => {
-    res.send('class');
+    res.json({
+        id: req.params.id,
+        displayName: 'Klas 4B',
+        teachers: [ '0' ],
+        students: [ '0' ],
+        assignments: [ '0' ],
+        joinRequests: [ '0' ],
+        invitations: [ '0' ],
+    });
 })
 
 export default router
\ No newline at end of file
diff --git a/backend/src/routes/group.ts b/backend/src/routes/group.ts
index 36e0be6e..bca20889 100644
--- a/backend/src/routes/group.ts
+++ b/backend/src/routes/group.ts
@@ -3,12 +3,22 @@ const router = express.Router();
 
 // information about a group (members, ... [TODO DOC])
 router.get('/:id', (req, res) => {
-    res.send('group');
+    res.json({
+        id: req.params.id,
+        assignment: '0',
+        students: [ '0' ],
+        submissions: [ '0' ],
+        // reference to other endpoint
+        // should be less hardcoded
+        questions: `/group/${req.params.id}/question`, 
+    });
 })
 
 // the list of questions a group has made
 router.get('/:id/question', (req, res) => {
-    res.send('questions');
+    res.json({
+        questions: [ '0' ],
+    });
 })
 
 export default router
\ No newline at end of file
diff --git a/backend/src/routes/login.ts b/backend/src/routes/login.ts
index 691a860c..550e6d93 100644
--- a/backend/src/routes/login.ts
+++ b/backend/src/routes/login.ts
@@ -3,7 +3,12 @@ const router = express.Router();
 
 // returns login paths for IDP
 router.get('/', (req, res) => {
-    res.send('login route');
+    res.json({
+        // dummy variables, needs to be changed
+        // with IDP endpoints
+        leerkracht: '/login-leerkracht',
+        leerling: '/login-leerling',
+    });
 })
 
 export default router
\ No newline at end of file
diff --git a/backend/src/routes/question.ts b/backend/src/routes/question.ts
index 1de0ae42..2218abf9 100644
--- a/backend/src/routes/question.ts
+++ b/backend/src/routes/question.ts
@@ -3,7 +3,15 @@ const router = express.Router();
 
 // information about an question with id 'id'
 router.get('/:id', (req, res) => {
-    res.send('question');
+    res.json({
+        id: req.params.id,
+        student: '0',
+        group: '0',
+        time: new Date(2025, 1, 1),
+        content: 'Zijn alle gehele getallen groter dan 2 gelijk aan de som van 2 priemgetallen????',
+        answers: [ '0' ],
+        learningObject: [ '0' ],
+    });
 })
 
 export default router
\ No newline at end of file
diff --git a/backend/src/routes/student.ts b/backend/src/routes/student.ts
index 55582992..3c8cd16c 100644
--- a/backend/src/routes/student.ts
+++ b/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
\ No newline at end of file
diff --git a/backend/src/routes/submission.ts b/backend/src/routes/submission.ts
index dbec9c8b..b830af8b 100644
--- a/backend/src/routes/submission.ts
+++ b/backend/src/routes/submission.ts
@@ -3,7 +3,14 @@ const router = express.Router();
 
 // information about an submission with id 'id'
 router.get('/:id', (req, res) => {
-    res.send('submission');
+    res.json({
+        id: req.params.id,
+        student: '0',
+        group: '0',
+        time: new Date(2025, 1, 1),
+        content: 'Wortel 2 is rationeel',
+        learningObject: '0',
+    });
 })
 
 export default router
\ No newline at end of file