How do I pass multiple block configurations to a behavior?
So as Leigh suggested I send this data values into a twig file 

  public function build() {

    $build = [
      '#theme' =&gt; 'curatorio_io',
      '#id' =&gt; uniqid(),
      '#feed_id' =&gt; $this-&gt;configuration['feed_id'],
      '#widget_type' =&gt; $this-&gt;configuration['widget_type'],
      '#attached' =&gt; [
        'library' =&gt; [
          'curatorio/curatorio_assets',
        ],
      ],
    ];

    return $build;
  }


Now in my twig file, I put those values into data attributes

&lt;div class ="curator-feed"  id = "{{ id }}" data-feed-id = "{{ feed_id }}"  data-widget-type = "{{ widget_type }}" &gt;

&lt;/div&gt;


and in js I attached my JS logic to get attribute value and attach Plugin into it.