's'

app/api/join/route.ts

@@ -1,7 +1,18 @@
 import { NextRequest, NextResponse } from "next/server";
 import { getPocketBaseConfig } from "@/config/services.config";
 
-function getOrCreateUserId(): string {
+const COOKIE_NAME = "pb_session";
+
+function getOrCreateUserId(request: NextRequest): string {
+  const cookie = request.cookies.get(COOKIE_NAME)?.value;
+  if (cookie) {
+    try {
+      const payload = JSON.parse(Buffer.from(cookie, "base64url").toString("utf-8"));
+      if (payload?.userId) return payload.userId;
+    } catch {
+      /* ignore */
+    }
+  }
   return `user${Date.now()}`;
 }
 
@@ -23,7 +34,7 @@ async function getAdminToken(): Promise<string | null> {
 
 export async function POST(request: NextRequest) {
   try {
-    const userId = getOrCreateUserId();
+    const userId = getOrCreateUserId(request);
     const body = await request.json();
     const formData = body && typeof body === "object" ? body : {};