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