move database from postgres/prisma to redis ⚡️

app/api/hits/route.ts

@@ -1,31 +1,43 @@
 import { NextResponse } from "next/server";
-import { prisma } from "../../../lib/helpers/prisma";
-import type { hits as Hits } from "@prisma/client";
+import redis from "../../../lib/helpers/redis";
 
 export const revalidate = 900; // 15 mins
 
 export const GET = async (): Promise<
   NextResponse<{
-    total: Pick<Hits, "hits">;
-    pages: Hits[];
+    total: {
+      hits: number;
+    };
+    pages: Array<{
+      slug: string;
+      hits: number;
+    }>;
   }>
 > => {
-  // fetch all rows from db sorted by most hits
-  const pages = await prisma.hits.findMany({
-    orderBy: [
-      {
-        hits: "desc",
-      },
-    ],
+  const slugs = await redis.scan(0, {
+    count: 50,
   });
 
-  const total = { hits: 0 };
+  // fetch all rows from db sorted by most hits
+  const data = await Promise.all(
+    slugs[1].map(async (slug) => {
+      const hits = (await redis.get(slug)) as number;
+      return {
+        slug,
+        hits,
+      };
+    })
+  );
+
+  // sort by hits
+  data.sort((a, b) => b.hits - a.hits);
 
   // calculate total hits
-  pages.forEach((page) => {
+  const total = { hits: 0 };
+  data.forEach((page) => {
     // add these hits to running tally
     total.hits += page.hits;
   });
 
-  return NextResponse.json({ total, pages });
+  return NextResponse.json({ total, pages: data });
 };