refactor(v4.0.0-alpha): beginning of a new era

apps/server/src/cache/cache.module.ts

@@ -0,0 +1,38 @@
+import { CacheModule as NestCacheModule } from "@nestjs/cache-manager";
+import { Logger, Module } from "@nestjs/common";
+import { ConfigService } from "@nestjs/config";
+import { RedisModule } from "@songkeys/nestjs-redis";
+import { redisStore } from "cache-manager-redis-yet";
+
+import { Config } from "../config/schema";
+
+@Module({
+  imports: [
+    RedisModule.forRootAsync({
+      inject: [ConfigService],
+      useFactory: async (configService: ConfigService<Config>) => ({
+        config: { url: configService.getOrThrow("REDIS_URL") },
+      }),
+    }),
+    NestCacheModule.registerAsync({
+      isGlobal: true,
+
+      inject: [ConfigService],
+      useFactory: async (configService: ConfigService<Config>) => {
+        const url = configService.get("REDIS_URL");
+
+        if (!url) {
+          Logger.warn(
+            "`REDIS_URL` was not set, using in-memory cache instead. This is not suitable for production.",
+            "CacheModule",
+          );
+
+          return {};
+        }
+
+        return { store: await redisStore({ url }) };
+      },
+    }),
+  ],
+})
+export class CacheModule {}