sitemap.xml, robots.txt & JSON-LD

// app/sitemap.js  (EduSite – complete file)
import { courses } from '@/lib/courses'
import { getAllPosts } from '@/lib/posts'
import { site } from '@/lib/site'

// Next.js turns this into /sitemap.xml automatically.
export default function sitemap() {
  const now = new Date()
  const pages = ['', '/courses', '/blog', '/about', '/contact'].map((p) => ({
    url: `${site.url}${p}`,
    lastModified: now,
    changeFrequency: p === '' ? 'weekly' : 'monthly',
    priority: p === '' ? 1 : 0.8,
  }))
  const coursePages = courses.map((c) => ({
    url: `${site.url}/courses/${c.slug}`, lastModified: now, priority: 0.9,
  }))
  const postPages = getAllPosts().map((p) => ({
    url: `${site.url}/blog/${p.slug}`, lastModified: new Date(p.date), priority: 0.7,
  }))
  return [...pages, ...coursePages, ...postPages]
}

// app/robots.js  (EduSite)
import { site } from '@/lib/site'

export default function robots() {
  return {
    rules: [{ userAgent: '*', allow: '/', disallow: ['/api/'] }],
    sitemap: `${site.url}/sitemap.xml`,
  }
}

// app/login/page.jsx — keep it out of Google results
export const metadata = { title: 'Login', robots: { index: false, follow: true } }

// app/products/sitemap.js — splits 120,000 products into files of 50,000
export async function generateSitemaps() {
  return [{ id: 0 }, { id: 1 }, { id: 2 }]
}

export default async function sitemap({ id }) {
  const start = Number(await id) * 50000
  const products = await getProducts(start, 50000)
  return products.map((p) => ({ url: `https://shop.in/products/${p.slug}`, lastModified: p.updatedAt }))
}
// → /products/sitemap/0.xml, /products/sitemap/1.xml, /products/sitemap/2.xml