like button implementation of my blog

1. Setup Firebase

2. Bind your domain if necessary

3. Alter public/javascript/widget.js to change hosting domain

   getServer() {
     return 'https://like.lhzhang.com' // change this url to your firebase app url
   }

4. Alter functions/index.js to config cors

   const whitelist = [ 'http://lhzhang.com' ] // change this domain to your blog domain

5. Add scripts to your blog post

   <span
       class           = "like-wrapper"
       like-shortname  = '{{ site.disqus }}'  <!-- required. any string works -->
       like-identifier = '{{ page.guid }}'  <!-- identifier of this post, uuid prefered -->
       like-name       = '{{ page.title }}'  <!-- post title -->
       like-btn        = '&#xf087;'  <!-- text for like button -->
       like-link       = '{{ site.atom-baseurl }}{{ page.url }}'  <!-- post link -->
   >
   </span>
   <script type="text/javascript">
     var l = document.createElement('script');
     l.type = 'text/javascript'; l.async = true; l.src = 'http://like.lhzhang.com/javascript/widget.js';  // change this url to your firebase hosting url of widget.js
     (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(l);
   </script>

6. Deploy

   $ firebase deploy