umami, glitchtip, redis

lib/services/cache/memory-cache-service.ts

@@ -0,0 +1,30 @@
+import type { CacheService, CacheSetOptions } from './cache-service';
+
+type Entry = {
+  value: unknown;
+  expiresAt?: number;
+};
+
+export class MemoryCacheService implements CacheService {
+  private readonly store = new Map<string, Entry>();
+
+  async get<T>(key: string) {
+    const entry = this.store.get(key);
+    if (!entry) return undefined;
+    if (entry.expiresAt && Date.now() > entry.expiresAt) {
+      this.store.delete(key);
+      return undefined;
+    }
+    return entry.value as T;
+  }
+
+  async set<T>(key: string, value: T, options?: CacheSetOptions) {
+    const ttl = options?.ttlSeconds;
+    const expiresAt = ttl ? Date.now() + ttl * 1000 : undefined;
+    this.store.set(key, { value, expiresAt });
+  }
+
+  async del(key: string) {
+    this.store.delete(key);
+  }
+}