sitemap-stream

SitemapStream is a simple and fast tool that build sitemaps using streams.
It automatically creates separated files, following the Google specifications

You can find information about the sitemap's syntax here (you'll find the authorized values the #inject method can receive).

Notes:

• This package respects the semver and the keep a changelog specifications.
• This module's code is using ES6 features, so you'll probably need to run your application with the flag --harmony (depending to your Node version).

Install

npm i sitemap-stream

Methods

SitemapStream#Constructor(options):

{
  sitemapDirectoryUrl: String,
  limit: Number, // (default: 50000)
  isMobile: Boolean, // (default: false)
  outputFolder: String // (default: './')
  toCompress: Boolean // (default: true)
}

SitemapStream#inject(url || options)

Url Case:

// The url

Options Case:

{
  url: String, // (required)
  changeFreq: String,
  priority: String
}

SitemapStream#reset

Useful if you want to start writing a new sitemap using the same SitemapStream instance

Events

SitemapStream use streams, so it emit events to let you know what happens. Here are the events you can listen to:

error

sg.on('error', err => {
  console.error(`Something wrong happened: ${err}`);
});

drain

let i = 0;

function injectUrls() {
  while (i<1000000) {
    const isInjected = sg.inject(`http://test-${i}.com`);

    if (!isInjected) return i;

    i++;
  }
}

sg.on('drain', () => {
  console.info(`Because we have injected a big amount of lines in a short time, the stream could need to be drained, in this case, the sg#inject method returns false and the drain event is emitted when the stream is ready to write again`);

  injectUrls();
});

injectUrls();

sitemap-created

sg.on('sitemap-created', path => {
  console.info(`A sitemap file has just been written here: ${path}`);
});

sitemap-index

sg.on('sitemap-index', path => {
  console.info(`A sitemapindex file has just been written here: ${path}`);
});

done

sg.on('done', nbFiles => {
  console.info(`The job is done, we have written ${nbFiles} files !`);
});

Examples

Basic

  const sg = require('sitemap-stream')();

  sg.inject('/some-path');

  sg.inject({ url: '/another-path' });

  sg.inject({ url: '/my-last-path', changeFreq: 'daily', priority: 0.7 });

  sg.done();

With options

  const sg = require('sitemap-stream')({ isMobile: true });

  sg.inject('/some-path');

  sg.inject({ url: '/another-path' });

  sg.inject({ url: '/my-last-path', changeFreq: 'daily', priority: 0.7 });

  sg.done();

With Events

  const sg = require('sitemap-stream')();

  sg.on('sitemap-created', (fileName) => {
    // This listener will be trigger twice, one when the first 50 000 urls will be injected, and another time when you'll call the #done method  
    console.log('A sitemap has been created !');
  });

  sg.on('sitemapindex-index', () => {
    // When  listener will be trigger once the sitemapindex file will be written
    console.log('The sitemapindex has been created, we are done !');
  });

  sg.on('done', () => {
    console.info('Everything is done !');
  });

  for (let i=0; i<60000; i++) sg.inject(`/some-path-${i}`);

  sg.done();