JCBSComputer
32 lines
876 B
TypeScript
32 lines
876 B
TypeScript
const attempts = new Map<string, { count: number; resetAt: number }>()
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export function checkRateLimit(
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key: string,
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maxAttempts = 5,
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windowMs = 60000,
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): { allowed: boolean; remaining: number; resetAt: number } {
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const now = Date.now()
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const entry = attempts.get(key)
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if (!entry || now > entry.resetAt) {
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attempts.set(key, { count: 1, resetAt: now + windowMs })
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return { allowed: true, remaining: maxAttempts - 1, resetAt: now + windowMs }
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}
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entry.count++
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if (entry.count > maxAttempts) {
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return { allowed: false, remaining: 0, resetAt: entry.resetAt }
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}
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return { allowed: true, remaining: maxAttempts - entry.count, resetAt: entry.resetAt }
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}
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// Cleanup stale entries every 5 minutes
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setInterval(() => {
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const now = Date.now()
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for (const [key, entry] of attempts) {
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if (now > entry.resetAt) attempts.delete(key)
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}
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}, 300000)
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