https://rainbowsales.uk/api/functions/generateSitemap?part=products https://rainbowsales.uk/api/functions/generateSitemap?part=categories https://rainbowsales.uk/api/functions/generateSitemap?part=brands https://rainbowsales.uk/api/functions/generateSitemap?part=static https://rainbowsales.uk/api/functions/generateSitemap?part=seo