src/pages/sitemap/products/[page].js


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import productSearchApi from '@/lib/product/api/productSearchApi'
import { create } from 'xmlbuilder'
import _ from 'lodash-contrib'
import { createSlug } from '@/core/utils/slug'

export async function getServerSideProps({ query, res }) {
  const baseUrl = process.env.SELF_HOST + '/shop/product/'
  const { page } = query
  const limit = 2500
  const queries = { limit, page: page.replace('.xml', '') }
  const products = await productSearchApi({ query: _.toQuery(queries) })
  const sitemap = create('urlset', { encoding: 'utf-8' }).att(
    'xmlns',
    'http://www.sitemaps.org/schemas/sitemap/0.9'
  )

  const date = new Date()
  products.response.products.forEach((product) => {
    const url = sitemap.ele('url')
    url.ele('loc', createSlug(baseUrl, product.name, product.id))
    url.ele('lastmod', date.toISOString().slice(0, 10))
    url.ele('changefreq', 'weekly')
    url.ele('priority', '0.8')
  })

  res.setHeader('Content-Type', 'text/xml')
  res.write(sitemap.end())
  res.end()

  return { props: {} }
}

export default function SitemapProducts() {
  return null
}