How to transfer data from Django backend to AngularJS frontend effectively

I’m working on a web application where I need to send data from my Django backend to the AngularJS frontend. The Django templates can output the values I need, but I’m not sure about the best approach to get these values into AngularJS.

Here’s my situation: I have a news article page with user comments. My AngularJS service fetches comments for a specific article using the article ID. Django renders the template and knows the article ID, but I need to make this ID available to AngularJS so it can call the service properly.

I’ve tried a couple of methods. First option is using a hidden form field and binding it to a model, but this feels messy.

Second approach uses a custom directive with the value passed as an attribute:

// Django renders {{ article.id }}
<div class="articleComments" data-article-id={{ article.id }}>
   ...
</div>

angular.module('articleApp', [])
    .directive('articleComments', function() {
        return {
            restrict: 'C',
            transclude: false,
            link: function setupLink($scope, $element, $attrs) {
                // $attrs.articleId contains the needed value
                var articleId = $attrs.articleId;
            }
        };
    });

Both methods work, but I’m wondering if there’s a more elegant solution that follows AngularJS conventions better. What would be the recommended way to handle this data transfer?