대시보드 중간 커밋

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

@@ -0,0 +1,98 @@
+import type {
+  DashboardChartTimeframe,
+  DashboardStockChartResponse,
+} from "@/features/dashboard/types/dashboard.types";
+import type { KisCredentialInput } from "@/lib/kis/config";
+import { hasKisConfig, normalizeTradingEnv } from "@/lib/kis/config";
+import { getDomesticChart } from "@/lib/kis/domestic";
+import { NextRequest, NextResponse } from "next/server";
+
+const VALID_TIMEFRAMES: DashboardChartTimeframe[] = [
+  "1m",
+  "30m",
+  "1h",
+  "1d",
+  "1w",
+];
+
+/**
+ * @file app/api/kis/domestic/chart/route.ts
+ * @description 국내주식 차트(분봉/일봉/주봉) 조회 API
+ */
+export async function GET(request: NextRequest) {
+  const { searchParams } = new URL(request.url);
+  const symbol = (searchParams.get("symbol") ?? "").trim();
+  const timeframe = (
+    searchParams.get("timeframe") ?? "1d"
+  ).trim() as DashboardChartTimeframe;
+  const cursor = (searchParams.get("cursor") ?? "").trim() || undefined;
+
+  if (!/^\d{6}$/.test(symbol)) {
+    return NextResponse.json(
+      { error: "symbol은 6자리 숫자여야 합니다." },
+      { status: 400 },
+    );
+  }
+
+  if (!VALID_TIMEFRAMES.includes(timeframe)) {
+    return NextResponse.json(
+      { error: "지원하지 않는 timeframe입니다." },
+      { status: 400 },
+    );
+  }
+
+  const credentials = readKisCredentialsFromHeaders(request.headers);
+  if (!hasKisConfig(credentials)) {
+    return NextResponse.json(
+      {
+        error:
+          "대시보드 상단에서 KIS API 키를 입력하고 검증해 주세요. 키 정보가 없어서 차트를 조회할 수 없습니다.",
+      },
+      { status: 400 },
+    );
+  }
+
+  try {
+    const chart = await getDomesticChart(
+      symbol,
+      timeframe,
+      credentials,
+      cursor,
+    );
+
+    const response: DashboardStockChartResponse = {
+      symbol,
+      timeframe,
+      candles: chart.candles,
+      nextCursor: chart.nextCursor,
+      hasMore: chart.hasMore,
+      fetchedAt: new Date().toISOString(),
+    };
+
+    return NextResponse.json(response, {
+      headers: {
+        "cache-control": "no-store",
+      },
+    });
+  } catch (error) {
+    const message =
+      error instanceof Error
+        ? error.message
+        : "KIS 차트 조회 중 오류가 발생했습니다.";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
+
+function readKisCredentialsFromHeaders(headers: Headers): KisCredentialInput {
+  const appKey = headers.get("x-kis-app-key")?.trim();
+  const appSecret = headers.get("x-kis-app-secret")?.trim();
+  const tradingEnv = normalizeTradingEnv(
+    headers.get("x-kis-trading-env") ?? undefined,
+  );
+
+  return {
+    appKey,
+    appSecret,
+    tradingEnv,
+  };
+}