WP Rest API – How to get featured image

I’m very new to this API, in fact I’ve only spent couple hours on it so far. I’ve done my research but cannot find anything about it…

The issue is, I can’t seem to get the featured image of a post. The JSON returns "featured_media: 0".

getPosts: function() {
  var burl = "http://www.example.com/wp-json/wp/v2/posts";
  var dataDiv = document.getElementById('cards');
  $.ajax({
    url: burl,
    data: data,
    type: 'GET',
    async: false,
    processData: false,
    beforeSend: function (xhr) {
      if (xhr && xhr.overrideMimeType) {
        xhr.overrideMimeType('application/json;charset=utf-8');
      }
    },
    dataType: 'json',
    success: function (data) {
      console.log(data);
      //question: data->featured_image: 0?!
      var theUl = document.getElementById('cards');
      for (var key in data) {
        //data[key]['']...
        //doing my stuff here
      }
    },
    error: function(e) {
      console.log('Error: '+e);
    }  
  });
}

I have definitely, set a featured image on the post but data returns:

Any help will be appreciated.

You can get it without plugins by adding _embedas param to your query

/?rest_route=/wp/v2/posts&_embed
/wp-json/wp/v2/posts?_embed