8.3 회원랭킹: 기간별 랭킹 집계/캐싱/페이지네이션/정렬 옵션

src/app/api/ranking/route.ts

@@ -0,0 +1,27 @@
+import { NextResponse } from "next/server";
+import prisma from "@/lib/prisma";
+
+export async function GET(req: Request) {
+  const { searchParams } = new URL(req.url);
+  const period = searchParams.get("period") || "monthly"; // daily/weekly/monthly/all
+  let since: Date | undefined;
+  const now = new Date();
+  if (period === "daily") since = new Date(now.getFullYear(), now.getMonth(), now.getDate());
+  else if (period === "weekly") since = new Date(now.getFullYear(), now.getMonth(), now.getDate() - 7);
+  else if (period === "monthly") since = new Date(now.getFullYear(), now.getMonth(), 1);
+
+  const where = since ? { createdAt: { gte: since } } : {};
+  const agg = await prisma.pointTransaction.groupBy({
+    by: ["userId"],
+    where,
+    _sum: { amount: true },
+    orderBy: { _sum: { amount: "desc" } },
+    take: 50,
+  });
+  const userIds = agg.map((a) => a.userId);
+  const users = await prisma.user.findMany({ where: { userId: { in: userIds } }, select: { userId: true, nickname: true } });
+  const items = agg.map((a) => ({ userId: a.userId, points: a._sum.amount ?? 0, nickname: users.find((u) => u.userId === a.userId)?.nickname || "" }));
+  return NextResponse.json({ period, items });
+}
+
+