From 06a128c8e3eee8812d2d0640b7ddf2f108bc1cb4 Mon Sep 17 00:00:00 2001
From: Ivan Shymko <ishymko@google.com>
Date: Thu, 27 Nov 2025 10:13:14 +0000
Subject: [PATCH] refactor: make userBuilder non-nullable in A2AExpressApp

Re #202
---
 src/server/express/a2a_express_app.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/server/express/a2a_express_app.ts b/src/server/express/a2a_express_app.ts
index bfb073e5..9588a00e 100644
--- a/src/server/express/a2a_express_app.ts
+++ b/src/server/express/a2a_express_app.ts
@@ -8,7 +8,7 @@ import { UserBuilder } from './common.js';
 
 export class A2AExpressApp {
   private requestHandler: A2ARequestHandler;
-  private userBuilder?: UserBuilder;
+  private userBuilder: UserBuilder;
 
   constructor(
     requestHandler: A2ARequestHandler,