JSON Feed template for jekyll

feed.json

---
layout: null
---
{
    "version": "https://jsonfeed.org/version/1",
    "title": "{{ site.name | xml_escape }}",
    "home_page_url": "{{ "/" | absolute_url }}",
    "feed_url": "{{ "/feed.json" | absolute_url }}",
    "description": {{ site.description | jsonify }},
    "icon": "{{ "/apple-touch-icon-152x152.png" | absolute_url }}",
    "favicon": "{{ "/favicon.ico" | absolute_url }}",
    "expired": false,
    "items": [
    {% for post in site.posts limit:36 %}
        {
            "id": "{{ post.url | absolute_url | sha1 }}",
            "title": {{ post.title | jsonify }},
            "summary": "",
            "content_text": {{ post.content | strip_html | strip_newlines | jsonify }},
            "content_html": {{ post.content | strip_newlines | jsonify }},
            "url": "{{ post.url | absolute_url }}",
            {% if post.tags.size > 0 %}"tags": {{ post.tags | jsonify }}, {% endif %}
            {% if post.enclosure.size > 1 %}"attachments": [
            {
              "url": "{{ post.enclosure }}",
              "mime_type": "{{ post.enclosure_type }}",
              "size_in_bytes": "{{ post.enclosure_lenght }}"
            },{% endif %}
            "date_published": "{{ post.date | date_to_xmlschema }}",
            "date_modified": "{{ post.date | date_to_xmlschema }}",
            "author": {
                "name": "{{ post.author }}"
            }
        }{% if forloop.last == false %},{% endif %}
    {% endfor %}
    ]
}