grafana/public/app/core/components/jsontree/jsontree.ts

import coreModule from 'app/core/core_module';
import {JsonExplorer} from '../json_explorer/json_explorer';

coreModule.directive('jsonTree', [function jsonTreeDirective() {
  return{
    restrict: 'E',
    scope: {
      object: '=',
      startExpanded: '@',
      rootName: '@',
    },
    link: function(scope, elem) {

      var jsonExp = new JsonExplorer(scope.object, 3, {
        animateOpen: true
      });

      const html = jsonExp.render(true);
      elem.html(html);
    }
  };
}]);