9 lines
399 B
TypeScript
9 lines
399 B
TypeScript
const visits = new Map<string, { count: number; resetAt: number }>();
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export function withinRateLimit(key: string, limit = 30, windowMs = 60_000) {
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const now = Date.now(); const record = visits.get(key);
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if (!record || record.resetAt <= now) { visits.set(key, { count: 1, resetAt: now + windowMs }); return true; }
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if (record.count >= limit) return false;
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record.count += 1; return true;
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}
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