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19 lines
500 B
19 lines
500 B
type Window = { count: number; resetAt: number };
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const windows = new Map<string, Window>();
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export function assertUnderRateLimit(key: string, max: number, windowMs: number) {
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const now = Date.now();
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let w = windows.get(key);
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if (!w || now > w.resetAt) {
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w = { count: 0, resetAt: now + windowMs };
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windows.set(key, w);
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}
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w.count += 1;
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if (w.count > max) {
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throw createError({
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statusCode: 429,
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statusMessage: "请求过于频繁，请稍后再试",
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});
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}
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}
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