feat: verbinding tussen service laag en api endpoint van submissions van een assignment

backend/src/controllers/assignments.ts

@@ -1,5 +1,5 @@
 import { Request, Response } from 'express';
-import { getAllAssignments, getAssignment } from '../services/assignments.js';
+import { getAllAssignments, getAssignment, getAssignmentsSubmissions } from '../services/assignments.js';
 
 // Typescript is annoy with with parameter forwarding from class.ts
 interface AssignmentParams {
@@ -42,3 +42,22 @@ export async function getAssignmentHandler(
 
     res.json(assignment);
 }
+
+export async function getAssignmentsSubmissionsHandler(
+    req: Request<AssignmentParams>,
+    res: Response,
+): Promise<void> {
+    const classid = req.params.classid;
+    const assignmentNumber = +req.params.id;
+
+    if (isNaN(assignmentNumber)) {
+        res.status(400).json({ error: 'Assignment id must be a number' });
+        return;
+    }
+
+    const submissions = await getAssignmentsSubmissions(classid, assignmentNumber);
+
+    res.json({
+        submissions: submissions,
+    });
+}

backend/src/routes/assignments.ts

@@ -2,6 +2,7 @@ import express from 'express';
 import {
     getAllAssignmentsHandler,
     getAssignmentHandler,
+    getAssignmentsSubmissionsHandler,
 } from '../controllers/assignments.js';
 import groupRouter from './groups.js';
 
@@ -13,11 +14,7 @@ router.get('/', getAllAssignmentsHandler);
 // Information about an assignment with id 'id'
 router.get('/:id', getAssignmentHandler);
 
-router.get('/:id/submissions', (req, res) => {
-    res.json({
-        submissions: ['0'],
-    });
-});
+router.get('/:id/submissions', getAssignmentsSubmissionsHandler);
 
 router.get('/:id/questions', (req, res) => {
     res.json({