⚡ perf: cache banners with Redis

src/config/redis/key.ts

@@ -0,0 +1,7 @@
+export const redisKey = [
+  {
+    name: "HERO_BANNER",
+    description: "Key for caching active hero banner data",
+    key: `${process.env.APP_NAME}:system:banner`,
+  },
+];

src/modules/heroBanner/services/getActiveHeroBanner.service.ts

@@ -1,10 +1,13 @@
+import { redisKey } from "../../../config/redis/key";
 import { AppError } from "../../../helpers/error/instances/app";
 import { ErrorForwarder } from "../../../helpers/error/instances/forwarder";
+import { redis } from "../../../utils/databases/redis/connection";
 import { findSystemPreferenceService } from "../../systemPreference/services/internal/findSystemPreference.service";
 import { findAllActiveHeroBannerRepository } from "../repositories/GET/findAllActiveHeroBanner.repository";
 
 export const getActiveHeroBannerService = async () => {
   try {
+    // Check if Hero Banner is enabled in system preferences
     const isHeroBannerEnabled = await findSystemPreferenceService(
       "HERO_BANNER_ENABLED",
       "boolean",
@@ -12,7 +15,19 @@ export const getActiveHeroBannerService = async () => {
     if (!isHeroBannerEnabled)
       throw new AppError(403, "Hero Banner is disabled");
 
-    return await findAllActiveHeroBannerRepository();
+    // Try to get active banners from Redis cache
+    const cachedBanners = await redis.get(
+      `${redisKey.filter((key) => key.name === "HERO_BANNER")[0].key}`,
+    );
+    if (cachedBanners) return JSON.parse(cachedBanners);
+
+    // If not in cache, fetch from database and cache the result
+    const activeBanners = await findAllActiveHeroBannerRepository();
+    await redis.set(
+      `${redisKey.filter((key) => key.name === "HERO_BANNER")[0].key}`,
+      JSON.stringify(activeBanners),
+    );
+    return activeBanners;
   } catch (error) {
     ErrorForwarder(error);
   }