perf upgrade

src/lib/supertokens/recipes/start-session.ts

@@ -3,6 +3,22 @@ import { ensureSuperTokensBackend } from "../server";
 import { logger } from "../";
 import SuperTokens from "supertokens-node";
 
+const USER_PHONE_TTL_MS = 60 * 1000;
+const userPhoneCache = new Map<string, { phone: string | undefined; expiresAt: number }>();
+
+async function getUserPhone(userId: string): Promise<string | undefined> {
+  const now = Date.now();
+  const cached = userPhoneCache.get(userId);
+  if (cached && cached.expiresAt > now) {
+    return cached.phone;
+  }
+
+  const user = await SuperTokens.getUser(userId);
+  const phone = user?.phoneNumbers[0];
+  userPhoneCache.set(userId, { phone, expiresAt: now + USER_PHONE_TTL_MS });
+  return phone;
+}
+
 export async function getSessionForStart(request: Request, options?: { sessionRequired?: boolean }) {
   ensureSuperTokensBackend();
 
@@ -52,15 +68,14 @@ export async function getSessionForStart(request: Request, options?: { sessionRe
         }
       }
       
-      const user = await SuperTokens.getUser(userId);
-
+      const phone = await getUserPhone(userId);
 
       return {
         hasToken: true,
         accessTokenPayload: session.accessTokenPayload,
         userId,
         sessionHandle: session.accessTokenPayload?.sessionHandle,
-        phone: user?.phoneNumbers[0]
+        phone
       };
     }