@lobehub/chat/src/server/utils/url.ts

Lobe Chat - an open-source, high-performance chatbot framework that supports speech synthesis, multimodal, and extensible Function Call plugin system. Supports one-click free deployment of your private ChatGPT/LLM web application.

import urlJoin from 'url-join';

const isVercelPreview = process.env.VERCEL === '1' && process.env.VERCEL_ENV !== 'production';

const vercelPreviewUrl = `https://${process.env.VERCEL_URL}`;

const siteUrl = isVercelPreview ? vercelPreviewUrl : 'https://lobechat.com';

export const getCanonicalUrl = (...paths: string[]) => urlJoin(siteUrl, ...paths);