import { createHmac } from 'crypto' export function generateTimestamp() { const date = new Date() const timestamp = date.toUTCString() return timestamp.replace('GMT', '+0000') } function generateOAuth2Signature(message: string, secretKey: string) { return createHmac('sha1', secretKey) .update(message) .digest() .toString('base64') } export function generateTokenSignatureTimestamp( requestUrl: string, timestamp: string, secretKey: string, ) { const message = `${requestUrl}\n${timestamp}` const signature = generateOAuth2Signature(message, secretKey) return signature }