ENCOA-274

src/pages/api/exam/[module]/index.ts

@@ -65,7 +65,8 @@ async function POST(req: NextApiRequest, res: NextApiResponse) {
 			// Check whether the id of the exam matches another exam with different
 			// owners, throw exception if there is, else allow editing
 			const ownersSet = new Set(docSnap?.owners || []);
-			if (docSnap?.owners?.length === exam.owners.lenght && exam.owners.every((e: string) => ownersSet.has(e))) {
+
+			if (docSnap !== null && docSnap?.owners?.length === exam.owners.lenght && exam.owners.every((e: string) => ownersSet.has(e))) {
 				throw new Error("Name already exists");
 			}
 

src/pages/api/exam/generate/[...module].ts

@@ -31,6 +31,7 @@ async function post(req: NextApiRequest, res: NextApiResponse) {
 	if (!req.session.user) return res.status(401).json({ ok: false });
 
 	const queryParams = queryToURLSearchParams(req);
+
 	let endpoint = queryParams.getAll('module').join("/");
 	
 	if (endpoint.startsWith("level")) {
@@ -41,12 +42,27 @@ async function post(req: NextApiRequest, res: NextApiResponse) {
 		endpoint = "reading/"
 	}
 
-	const result = await axios.post(`${process.env.BACKEND_URL}/${endpoint}`,
-		req.body,
-		{
-			headers: { Authorization: `Bearer ${process.env.BACKEND_JWT}` },
-		},
-	);
+	queryParams.delete('module');
+	const queryString = queryParams.toString();
 
-	res.status(200).json(result.data);
-}
+	const hasFiles = req.headers['content-type']?.startsWith('multipart/form-data');
+
+    // https://github.com/vercel/next.js/discussions/36153#discussioncomment-3029675
+	// This just proxies the request
+
+	const { data } = await axios.post(
+		`${process.env.BACKEND_URL}/${endpoint}${hasFiles ? '/attachment' : ''}${queryString.length > 0 ? `?${queryString}` : ''}`, req, {
+		responseType: "stream",
+		headers: {
+			"Content-Type": req.headers["content-type"],
+			Authorization: `Bearer ${process.env.BACKEND_JWT}`,
+		},
+	});
+	data.pipe(res);
+}
+
+export const config = {
+	api: {
+		bodyParser: false,
+	},
+};