차트 수정

app/api/kis/domestic/overview/route.ts

@@ -4,6 +4,10 @@ import type { KisCredentialInput } from "@/lib/kis/config";
 import { hasKisConfig, normalizeTradingEnv } from "@/lib/kis/config";
 import { getDomesticOverview } from "@/lib/kis/domestic";
 import { NextRequest, NextResponse } from "next/server";
+import {
+  DOMESTIC_KIS_SESSION_OVERRIDE_HEADER,
+  parseDomesticKisSession,
+} from "@/lib/kis/domestic-market-session";
 
 /**
  * @file app/api/kis/domestic/overview/route.ts
@@ -38,7 +42,13 @@ export async function GET(request: NextRequest) {
   const fallbackMeta = KOREAN_STOCK_INDEX.find((item) => item.symbol === symbol);
 
   try {
-    const overview = await getDomesticOverview(symbol, fallbackMeta, credentials);
+    const sessionOverride = readSessionOverrideFromHeaders(request.headers);
+    const overview = await getDomesticOverview(
+      symbol,
+      fallbackMeta,
+      credentials,
+      { sessionOverride },
+    );
 
     const response: DashboardStockOverviewResponse = {
       stock: overview.stock,
@@ -76,3 +86,9 @@ function readKisCredentialsFromHeaders(headers: Headers): KisCredentialInput {
     tradingEnv,
   };
 }
+
+function readSessionOverrideFromHeaders(headers: Headers) {
+  if (process.env.NODE_ENV === "production") return null;
+  const raw = headers.get(DOMESTIC_KIS_SESSION_OVERRIDE_HEADER);
+  return parseDomesticKisSession(raw);
+}