feat: group verbinding tussen databank en api aangemaakt

backend/src/controllers/groups.ts

@@ -0,0 +1,34 @@
+import { Request, Response } from 'express';
+import { getGroup } from '../services/groups';
+
+// typescript is annoywith with parameter forwarding from class.ts
+interface GroupParams {
+    classid: string;
+    assignmentid: string;
+    groupid: string;
+}
+
+export async function getGroupHandler(
+    req: Request<GroupParams>,
+    res: Response,
+): Promise<void> {
+    const classId = req.params.classid;
+    const full = req.query.full === "true";
+    const assignmentId = +req.params.assignmentid;
+
+    if (isNaN(assignmentId)) {
+        res.status(400).json({ error: "Assignment id must be a number" });
+        return;
+    }
+
+    const groupId = +req.params.groupid;
+
+    if (isNaN(groupId)) {
+        res.status(400).json({ error: "Group id must be a number" });
+        return;
+    }
+
+    const group = await getGroup(classId, assignmentId, groupId, full);
+
+    res.json(group);
+}