Dynamic Sitemaps with Base44

Create a static sitemap.xml file for my site that has no database-dependent pages. Include:

1. A sitemap.xml file at the public root directory containing:
   - All public pages with their full canonical URLs using [YOUR_DOMAIN]
   - Appropriate lastmod dates (use today's date or actual last modified)
   - changefreq values (daily for homepage, weekly for main pages, monthly for static content)
   - priority values (1.0 for homepage, 0.8 for main sections, 0.6 for subpages)

2. These pages:
   - Homepage (/)
   - [List all your static pages, e.g., /about, /pricing, /contact, /features, /blog]

3. Proper XML structure with:
   - XML declaration
   - urlset with xmlns namespace
   - Properly escaped URLs

Make sure the sitemap validates against the sitemap protocol specification.

Create a sitemap system for my site that has both static pages and some dynamic
content from the database, but not enough to require pagination (under 1000 items
per entity).

1. Create a backend function called "sitemap" that:
   - Fetches all dynamic entities from the database in a single query per entity
   - Combines with hardcoded static page URLs
   - Returns complete sitemap XML
   - Caches the response for 1 hour
   - Uses canonical domain: [YOUR_DOMAIN]

2. Include static pages:
   - [List your static pages, e.g., /, /about, /pricing, /contact]

3. Include dynamic entities:
   - [List your dynamic routes, e.g., blog posts at /blog?slug=my-post]

4. For each URL include:
   - loc (full canonical URL)
   - lastmod (from database updated_at or static date)
   - changefreq (based on content type)
   - priority (based on page importance)

Create a single backend function called "sitemap" that returns a complete
sitemap with all URLs (up to 50,000). Requirements:

1. The backend function should:
   - Query all dynamic entities from the database
   - Combine with hardcoded static page URLs
   - Return a single <urlset> XML document with all URLs
   - Include proper lastmod dates from updated_at columns
   - Set appropriate changefreq and priority values
   - Cache the response for 1 hour
   - Return proper XML content-type header
   - Use the canonical domain: [YOUR_DOMAIN]

2. Include static pages:
   - [List your static pages, e.g., /, /about, /pricing, /contact]

3. Include these dynamic entity types:
   - [List your entities, e.g., /blog?slug=, /products?id=, /users?username=]

4. Ensure the total URL count stays under 50,000 (the sitemap protocol limit)

Create a backend function called "sitemap" that returns a <sitemapindex> XML
document listing paginated sub-sitemap URLs. Requirements:

1. The "sitemap" function should:
   - Query entity counts from the database to determine pagination
   - Return a <sitemapindex> listing sub-sitemap URLs like:
     /functions/sitemap-posts?page=1, /functions/sitemap-posts?page=2, etc.
   - Include one entry per entity type per page (1000 URLs per page)
   - Cache the response for 1 hour
   - Return proper XML content-type header

2. For each entity type, create a separate backend function (e.g., "sitemap-posts") that:
   - Accepts a ?page=N query parameter
   - Queries the database for that batch of 1000 records
   - Returns a <urlset> XML document with those URLs
   - Includes proper lastmod dates from updated_at columns
   - Sets appropriate changefreq and priority values
   - Uses the canonical domain: [YOUR_DOMAIN]

3. Include these entity types:
   - [List your entities, e.g., /blog?slug=, /products?id=, /users?username=]