63 lines
1.2 KiB
TypeScript
63 lines
1.2 KiB
TypeScript
// Simple in-memory cache with TTL
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interface CacheEntry<T> {
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data: T;
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timestamp: number;
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ttl: number;
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}
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class SimpleCache {
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private cache: Map<string, CacheEntry<any>> = new Map();
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set<T>(key: string, data: T, ttlMinutes: number = 5): void {
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this.cache.set(key, {
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data,
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timestamp: Date.now(),
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ttl: ttlMinutes * 60 * 1000, // Convert to milliseconds
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});
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}
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get<T>(key: string): T | null {
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const entry = this.cache.get(key);
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if (!entry) {
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return null;
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}
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// Check if expired
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if (Date.now() - entry.timestamp > entry.ttl) {
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this.cache.delete(key);
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return null;
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}
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return entry.data as T;
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}
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delete(key: string): void {
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this.cache.delete(key);
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}
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clear(): void {
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this.cache.clear();
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}
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// Clean up expired entries
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cleanup(): void {
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const now = Date.now();
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for (const [key, entry] of this.cache.entries()) {
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if (now - entry.timestamp > entry.ttl) {
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this.cache.delete(key);
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}
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}
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}
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}
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// Global cache instance
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export const apiCache = new SimpleCache();
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// Run cleanup every 5 minutes
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if (typeof window === 'undefined') {
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// Server-side only
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setInterval(() => {
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apiCache.cleanup();
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}, 5 * 60 * 1000);
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}
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