Jekyll template to create JSONFeed for all posts in site

jsonfeed.JSON

---
layout: null
---
{
	"version": "https://jsonfeed.org/version/1",
	"title": {{ site.title | jsonify }},
	"author": {
		"name": {{ site.author | jsonify }},
		"url": "{{ site.url }}{{ site.baseurl }}{% link about/index.md %}",
		"avatar": "https://s.gravatar.com/avatar/54e9f4f6495f7b7a218ae7051a173645?s=500"
	},
	"description": {{ site.description | jsonify }},
	"home_page_url": "{{ site.url }}{{ site.baseurl }}",
	"feed_url": "{{ site.url }}{{ site.baseurl }}/feed.json",
	"icon": "https://s.gravatar.com/avatar/54e9f4f6495f7b7a218ae7051a173645?s=500",
	"items": [
		{% for post in site.posts %}
		{
			"id": "{{ site.url }}{{ site.baseurl }}{{ post.url }}",
			"title": {{ post.title | jsonify }},
			{% if post.author %}"author": {{ post.author | jsonify }}, {% endif %}
			{% if post.description %}"summary": {{ post.description | jsonify }}, {% endif %}
			{% if post.image %}"image": {{ post.image | jsonify }}, {% endif %}
			"content_html": {{ post.content | jsonify }},
			"date_published": "{{ post.date | date_to_xmlschema }}",
			"url": "{{ site.url }}{{ site.baseurl }}{{ post.url }}"
		}{% if forloop.last == false %},{% endif %}
		{% endfor %}
	]
}