Contentful-sitemap NPM

🗺 contentful-sitemap

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Dynamically generate an array of valid sitemap routes to enable building a live sitemap based on Contentful content via the Contentful API.

Install

Via npm

npm install contentful-sitemap

Via Yarn

yarn add contentful-sitemap

How to use

contentful-sitemap requires a Contentful client in order to fetch entries from your Contenful space in order to build your dynamic sitemap entries. So, make sure you have contentful as a dependency in your project.

Install contentful

npm i -S contentful

Create Contentful client

const contentful = require('contentful');
const { ContentfulSitemap } = require('contentful-sitemap');

const client = contentful.createClient({
  accessToken: '[ACCESS_TOKEN]',
  space: '[SPACE_ID]',
});

Next comes setting up the ContentfulSitemap instance that will be used by your /sitemap.xml route to generate and return the sitemap. ContentfulSitemap requires a client instance, so make sure you pass one into the constructor.

Create ContentfulSitemap instance

const sitemapGenerator = new ContentfulSitemap(client, [routes], {options});

Parameters

client - Contentful client that will be used for fetching locales and entries from Contentful.
routes - Array of route definitions to use to generate sitemap.
options - Options that you can use to customize how sitemaps are generated.

Routes

contentful-sitemap generates a route array that is compatible with the sitemap package for generating your sitemap.xml file, so all route options supported by that package are also supported within the routes array you pass in. You can pass in both static and dynamic Contentful routes within the array. Below are the few specifics that directly relate to how contentful-sitemap will process your routes entries.

Name	Default	Description
`url`	`null`	Use this property if the path you are providing does not require any segments to be swapped out dynamically.
`id`	`null`	Contentful entry `id` to fetch for the specific path. Only used if the `dynamicLastmod` option is set to `true`.
`pattern`	`null`	`path-to-regexp` pattern to use for generating dynamic listings based on Contentful content or setting `locale` specific paths.
`priority`	`1`	Default `priority` to set for each `url`. Set to `1` as a default so it can be excluded in your `routes` definitions.
`params`	`null`	Object used to specify the mapping of `pattern` parameter to Contentful response data.
`query`	`null`	Query used by the Contentful `client` for fetching entries. All contentful `getEntries` query options are supported.

Default Options

The following options can be used to customize the way your sitemap is generated. The one option that you’ll definitely want to set, if not defined in your routes is the origin option, which is prefixed before the urls and patterns defined in your routes.

Name	Default	Description
`locales`	`[]`	Array of locales to include for all route instances, if not using `dynamicLocales`.
`dynamicLocales`	`false`	Whether or not to fetch the list of enabled `locales` from Contentful.
`dynamicLastmod`	`false`	Automatically use the `lastmodParam` value of each entry to set the `lastmod` value.
`lastmodParam`	`sys.updatedAt`	Contentful model field to use when populating `lastmodISO` in route(s).
`localeParam`	`locale`	The param to set within your `pattern` to replace with a `locale`.
`defaultLocale`	`null`	The default locale that will be used in the main `loc` value for a `url`.

Methods

addRoute(route) - Method to use for adding additional urls after the initial ContentfulSitemap instance has been created.
buildRoutes() - The magic✨ Call this method when you want to generate your Contentful routes to be passed to sitemap.
toXML((xml, err) => {}) - DEPRECATED - This was the previous method that this class used to build and return the full sitemap.xml string, but due to changes made to the sitemap package it seemed like it would be easier to support the current—and future—versions of that package by simplifying this package to do one thing well, while offering more flexibility with how you would like to use sitemap to generate your sitemap(s).

Example

const express = require('express');
const contentful = require('contentful');
const { SitemapStream, streamToPromise } = require('sitemap');
const { createGzip } = require('zlib');
const { ContentfulSitemap } = require('contentful-sitemap');

const app = express();

const client = contentful.createClient({
  accessToken: '[ACCESS_TOKEN]',
  space: '[SPACE_ID]',
});

const sitemapGenerator = new ContentfulSitemap(client, [
  {
    pattern: '/',
    id: '[HOME_PAGE_ID]',
  },
  {
    pattern: '/about',
    id: '[ABOUT_PAGE_ID]',
    priority: 0.7,
  },
  {
    pattern: '/news',
    id: '[NEWS_PAGE_ID]',
  },
  {
    pattern: '/news/:slug',
    priority: 0.5,
    query: {
      content_type: '[CONTENTFUL_MODEL_TYPE (e.g. `newsArticlePage`)]',
      select: 'fields.slug',
    },
    params: {
      slug: 'fields.slug',
    },
  },
  {
    url: '/terms',
    priority: 0.3,
  },
  {
    url: '/privacy',
    priority: 0.3,
  }
]);

let sitemap;

app.get('/sitemap.xml', (req, res) => {
  res.header('Content-Type', 'application/xml');
  res.header('Content-Encoding', 'gzip');

  if (sitemap) {
    return res.send(sitemap);
  }

  try {
    const smStream = new SitemapStream({ hostname: 'https://example.com/' });
    const pipeline = smStream.pipe(createGzip());

    return sitemapGenerator.buildRoutes()
      .then(routes => {
        // pipe your entries or directly write them.
        routes.forEach(route => smStream.write(route));
        smStream.end()

        // cache the response
        streamToPromise(pipeline).then(sm => sitemap = sm)
        // stream write the response
        pipeline.pipe(res).on('error', (e) => {throw e})
      })
      .catch(error => {
        console.error(error);
        res.status(500).end();
      });
  } catch (e) {
    console.error(e)
    res.status(500).end()
  }
});

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