From c8ce36a62409f3bc31f45a101518358b1309b835 Mon Sep 17 00:00:00 2001
From: qornwh1 <qornwh1@naver.com>
Date: Wed, 4 Mar 2026 16:12:45 +0900
Subject: [PATCH] =?UTF-8?q?feat=20:=20=EB=A1=9C=EA=B7=B8=EC=9D=B8=20?=
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---
 MMOTestServer/MMOserver/Api/RestApi.cs | 51 +++++++++++++++++---------
 1 file changed, 34 insertions(+), 17 deletions(-)

diff --git a/MMOTestServer/MMOserver/Api/RestApi.cs b/MMOTestServer/MMOserver/Api/RestApi.cs
index bc7a91f..786ab79 100644
--- a/MMOTestServer/MMOserver/Api/RestApi.cs
+++ b/MMOTestServer/MMOserver/Api/RestApi.cs
@@ -11,29 +11,46 @@ public class RestApi : Singleton<RestApi>
     private const string VERIFY_URL = "https://a301.api.tolelom.xyz/api/auth/verify";
     private readonly HttpClient httpClient = new HttpClient { Timeout = TimeSpan.FromSeconds(5) };
 
-    // 토큰 검증 - 성공 시 username 반환, 실패(401/타임아웃 등) 시 null 반환
+    private const int MAX_RETRY = 3;
+    private static readonly TimeSpan RETRY_DELAY = TimeSpan.FromSeconds(1);
+
+    // 토큰 검증 - 성공 시 username 반환
+    // 401 → 재시도 없이 즉시 null 반환 (토큰 자체가 무효)
+    // 타임아웃/네트워크 오류 → 최대 MAX_RETRY회 재시도 후 null 반환
     public async Task<string?> VerifyTokenAsync(string token)
     {
-        try
+        for (int attempt = 1; attempt <= MAX_RETRY; attempt++)
         {
-            HttpResponseMessage response = await httpClient.PostAsJsonAsync(VERIFY_URL, new { token });
-
-            if (response.StatusCode == HttpStatusCode.Unauthorized)
+            try
             {
-                Log.Warning("[RestApi] 인증 실패 (401)");
-                return null;
+                HttpResponseMessage response = await httpClient.PostAsJsonAsync(VERIFY_URL, new { token });
+
+                // 401: 토큰 자체가 무효 → 재시도해도 같은 결과, 즉시 반환
+                if (response.StatusCode == HttpStatusCode.Unauthorized)
+                {
+                    Log.Warning("[RestApi] 토큰 인증 실패 (401)");
+                    return null;
+                }
+
+                response.EnsureSuccessStatusCode();
+
+                AuthVerifyResponse? result = await response.Content.ReadFromJsonAsync<AuthVerifyResponse>();
+                return result?.Username;
+            }
+            catch (Exception ex) when (attempt < MAX_RETRY)
+            {
+                // 일시적 장애 (타임아웃, 네트워크 오류 등) → 재시도
+                Log.Warning("[RestApi] 통신 실패 (시도 {Attempt}/{Max}): {Message}", attempt, MAX_RETRY, ex.Message);
+                await Task.Delay(RETRY_DELAY);
+            }
+            catch (Exception ex)
+            {
+                // 마지막 시도까지 실패
+                Log.Error("[RestApi] 최종 통신 실패 ({Max}회 시도): {Message}", MAX_RETRY, ex.Message);
             }
-
-            response.EnsureSuccessStatusCode();
-
-            AuthVerifyResponse? result = await response.Content.ReadFromJsonAsync<AuthVerifyResponse>();
-            return result?.Username;
-        }
-        catch (Exception ex)
-        {
-            Log.Error("[RestApi] 웹서버 통신 실패: {Message}", ex.Message);
-            return null;
         }
+
+        return null;
     }
 
     private sealed class AuthVerifyResponse