Sitemap.xml Generator using next-sitemap, uniformdev, & contentful

UniformSitemap.js

// Import required packages and functions
const fs = require('fs');
const { SitemapStream, streamToPromise } = require('sitemap');
const { createGzip } = require('zlib');
const { getSiteMapUrls } = require('@uniformdev/next-jss/server');

// Set up Uniform and Contentful credentials
const UNIFORM_API_KEY = process.env.UNIFORM_API_KEY;
const CONTENTFUL_SPACE_ID = process.env.CONTENTFUL_SPACE_ID;
const CONTENTFUL_ACCESS_TOKEN = process.env.CONTENTFUL_ACCESS_TOKEN;

// Set up Next.js config
const nextConfig = require('./next.config.js');

// Set up sitemap options
const options = {
  changefreq: 'weekly',
  priority: 0.5,
  lastmod: new Date(),
  hostname: nextConfig.env.NEXT_PUBLIC_SITE_URL,
};

// Create sitemap stream and gzip it
const sitemapStream = new SitemapStream(options);
const pipeline = sitemapStream.pipe(createGzip());

// Get site map urls using Uniform's getSiteMapUrls function
(async () => {
  const siteMapUrls = await getSiteMapUrls(
    UNIFORM_API_KEY,
    CONTENTFUL_SPACE_ID,
    CONTENTFUL_ACCESS_TOKEN
  );

  // Add each URL to the sitemap stream
  siteMapUrls.forEach((url) => {
    sitemapStream.write({
      url: `${options.hostname}${url}`,
      changefreq: options.changefreq,
      priority: options.priority,
      lastmod: options.lastmod,
    });
  });

  // End sitemap stream and gzip it
  sitemapStream.end();
  await streamToPromise(pipeline).then((sm) => {
    // Write the sitemap file to the public directory
    fs.writeFileSync('./public/sitemap.xml.gz', sm);
  });
})();