make_sitemap.js

const fs = require("fs");
const util = require("util");
const path = require("path");
const mkdirp = require("mkdirp");
const sm = require("sitemap");
const globby = require("globby");
const axios = require("axios");

function getApiPaths(url) {
  return axios.get(url).then((response) => {
    let links = [];
    for (const post of response.data) {
      links.push(
        post.link.replace(/https\:\/\/api.robinweissenborn.de\//, "/")
      );
    }
    return links;
  });
}

module.exports = async function makeSitemap(opts = {}) {
  const {
    distPath,
    fileName,
    homepage,
    exclude,
    prettyURLs,
    trailingSlash,
    failBuild,
  } = opts;
  const htmlFiles = `${distPath}/**/**.html`;
  const excludeFiles = (exclude || []).map((filePath) => {
    return `!${filePath.replace(/^!/, "")}`;
  });

  const lookup = [htmlFiles].concat(excludeFiles);
  const paths = await globby(lookup);
  const additionalApiPaths = await getApiPaths(
    "http://api.robinweissenborn.de/wp-json/wp/v2/posts?_fields=link,acf.title_image.url"
  );
  const newPaths = paths.concat(additionalApiPaths);
  const urls = newPaths.map((file) => {
    let urlPath = file.startsWith(distPath)
      ? file.replace(distPath, "")
      : distPath;

    console.log(urlPath);
    if (prettyURLs) {
      urlPath = urlPath.replace(/\/index\.html$/, "").replace(/\.html$/, "");

      if (trailingSlash) {
        urlPath += urlPath.endsWith("/") ? "" : "/";
      }
    }
    return {
      url: urlPath,
      changefreq: opts.changeFreq || "weekly",
      priority: opts.priority || 0.8,
      lastmodrealtime: true,
      lastmodfile: file,
    };
  });
  const options = {
    hostname: `${homepage.replace(/\/$/, "")}/`,
    cacheTime: 600000, // 600 sec cache period
    urls,
  };
  // Creates a sitemap object given the input configuration with URLs
  const sitemap = sm.createSitemap(options);
  // Generates XML
  try {
    await util.promisify(sitemap.toXML.bind(sitemap))();
  } catch (error) {
    failBuild("Could not generate XML sitemap", { error });
  }
  // Gives you a string containing the XML data
  const xml = sitemap.toString();
  // write sitemap to file
  const sitemapFileName = fileName || "sitemap.xml";
  const sitemapFile = path.resolve(distPath, sitemapFileName);
  // Ensure dist path
  await mkdirp(distPath);
  // Write sitemap
  await util.promisify(fs.writeFile)(sitemapFile, xml);
  // Return info
  return {
    sitemapPath: sitemapFileName,
    sitemap: sitemap,
  };
};