import { defineEventHandler } from 'h3'; // file route should be server/routes/robots.txt.js export default defineEventHandler(async (event) => { const runtimeConfig = useRuntimeConfig(); console.log(runtimeConfig.public.siteUrl); let url = `${runtimeConfig.public.siteUrl}/robots.dev.txt`; if (runtimeConfig.public.siteUrl === 'https://www.yourprodsite.com/') { url = `${runtimeConfig.public.siteUrl}/robots.prod.txt`; } let response = await $fetch(url); event.node.res.setHeader('Content-Type', 'text/plain'); return response; });