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13 lines
532 B
JavaScript
13 lines
532 B
JavaScript
/** Bound an upstream Retry-After delay (seconds or HTTP date). */
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export function providerCooldownMs(response, now = Date.now()) {
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const raw = response?.headers?.get('retry-after')?.trim();
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const seconds = raw && /^\d+(?:\.\d+)?$/.test(raw) ? Number(raw) : NaN;
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const deadline = raw && !Number.isFinite(seconds) ? Date.parse(raw) : NaN;
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const delay = Number.isFinite(seconds)
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? seconds * 1000
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: Number.isFinite(deadline)
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? deadline - now
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: 60000;
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return Math.min(30 * 60000, Math.max(5000, delay));
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}
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