Adolfo Reyna
31 lines
742 B
TypeScript
31 lines
742 B
TypeScript
import { randomBytes } from 'node:crypto';
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const ENCODING = '0123456789ABCDEFGHJKMNPQRSTVWXYZ';
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export function generateId(): string {
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const now = Date.now();
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const time = encodeBase32(now, 10);
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let random = '';
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const bytes = randomBytes(16);
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let value = 0;
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let bits = 0;
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for (const byte of bytes) {
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value = (value << 8) | byte;
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bits += 8;
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while (bits >= 5 && random.length < 16) {
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random += ENCODING[(value >>> (bits - 5)) & 31];
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bits -= 5;
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}
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}
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return time + random.padEnd(16, '0');
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}
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function encodeBase32(num: number, length: number): string {
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let out = '';
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for (let i = length - 1; i >= 0; i--) {
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out = ENCODING[num % 32] + out;
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num = Math.floor(num / 32);
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}
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return out;
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}
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