Is it possible to create multiple sitemaps?

[aayushsapkota9]

I need help categorizing sitemaps for my Next.js project using next-sitemap. Here’s what I want to achieve:

Main Sitemap: https://example.com/sitemap.xml
Product Sitemap: https://example.com/product-sitemap.xml
Category Sitemap: https://example.com/category-sitemap.xml
Blog Sitemap: https://example.com/blogs-sitemap.xml
Current Setup
I've installed next-sitemap and created a basic configuration. I need to generate separate sitemaps for different sections of my site. Here's my configuration file (next-sitemap.config.js):

const SITE_URL = 'https://example.com';

const config = {
  siteUrl: SITE_URL,
  generateRobotsTxt: true,
  sitemapSize: 5000,
  exclude: ['/login'],
  additionalPaths: async (config) => {
    const productRoutes = await fetchDynamicRoutes('https://backend.example.com/products', 'product');
    const categoryRoutes = await fetchDynamicRoutes('https://backend.example.com/categories', 'category');
    const blogRoutes = await fetchDynamicRoutes('https://backend.example.com/blogs', 'blog');

    return [
      ...productRoutes,
      ...categoryRoutes,
      ...blogRoutes,
      config.transform(config, '/'),
      config.transform(config, '/register')
    ];
  },
  transform: async (config, path) => {
    return {
      loc: path,
      changefreq: 'weekly',
      priority: 0.7,
      lastmod: new Date().toISOString(),
    };
  },
  additionalSitemaps: [
    `${SITE_URL}/product-sitemap.xml`,
    `${SITE_URL}/category-sitemap.xml`,
    `${SITE_URL}/blogs-sitemap.xml`,
  ],
};

module.exports = config;

async function fetchDynamicRoutes(url, pathPrefix) {
  try {
    const response = await fetch(url);
    if (!response.ok) throw new Error(`Error: ${response.statusText}`);
    const data = await response.json();
    return data.map(item => ({
      loc: `${SITE_URL}/${pathPrefix}/${item.slug}`,
      lastmod: item.lastModified,
      changefreq: 'weekly',
      priority: 0.7,
    }));
  } catch (error) {
    console.error('Fetch error:', error);
    return [];
  }
}