fix(backend): 招待コードが使い回せる問題を修正 (#12423)

* (fix) 招待コードを一度のみ利用できるように * Update Changelog
2023-11-23 19:34:14 +09:00 · 2023-11-23 19:34:14 +09:00 · 4a2a44831b
commit 4a2a44831b
parent 864827f788
2 changed files with 2 additions and 1 deletions
--- a/packages/backend/src/server/api/SignupApiService.ts
+++ b/packages/backend/src/server/api/SignupApiService.ts
@ -126,7 +126,7 @@ export class SignupApiService {
 				code: invitationCode,
 			});

-			if (ticket == null) {
+			if (ticket == null || ticket.usedById != null) {
 				reply.code(400);
 				return;
 			}