Add sitemap route

Adds routes and locations to sitemap.xml file

src/routes/sitemap.xml.js

@@ -0,0 +1,55 @@
+const fs = require('fs')
+const fetch = require('node-fetch')
+import { apiEndpoints } from '../utils/store'
+
+
+// Variables
+let BASE_URL
+const pages = ['']
+
+// Get each route
+fs.readdirSync('./src/routes').forEach(file => {
+    const filename = file.split('.')[0]
+    if (!file.startsWith('.') && !filename.startsWith('_') && ['sitemap', 'index', 'location', 'viewer'].indexOf(filename) === -1) {
+        pages.push(filename)
+    }
+})
+
+// Render function
+const render = (pages, locations) => {
+    console.log(locations)
+
+    return `<?xml version="1.0" encoding="UTF-8" ?>
+<urlset
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
+    xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"
+>
+    ${pages.map(page => `
+    <url>
+        <loc>${BASE_URL}/${page}</loc>
+        <priority>0.75</priority>
+    </url>`).join('\n')}
+
+    ${locations.map(loc => `
+    <url>
+        <loc>${BASE_URL}/location/${loc.country.slug}/${loc.slug}</loc>
+        <priority>1</priority>
+    </url>`).join('\n')}
+</urlset>`
+}
+
+// Get function
+export async function get (req, res, next) {
+    BASE_URL = `http${(req.httpVersion >= 2) ? 's' : ''}://${req.headers.host}`
+
+    // Get locations
+    const locationsReq = await fetch(`${apiEndpoints.rest}/items/locations?fields=slug,country.slug`)
+    const locations = await locationsReq.json()
+
+    res.setHeader('Cache-Control', `max-age=0, s-max-age=${600}`) // 10 minutes
+    res.setHeader('Content-Type', 'application/rss+xml')
+
+    const sitemap = render(pages, locations.data)
+    res.end(sitemap)
+}