calibre-web/cps/templates/json.txt

{
  "pubdate": "{{entry.pubdate}}", 
  "title": "{{entry.title}}", 
  "format_metadata": {
  {% for format in entry.data %}  
    "{{format.format}}": {
      "mtime": "{{entry.last_modified}}", 
      "size": {{format.uncompressed_size}}, 
      "path": ""
    }{% if not loop.last %},{% endif %}
    {% endfor %}
  }, 
  "formats": [
  {% for format in entry.data %}  
    "{{format.format}}"{% if not loop.last %},{% endif %}
  {% endfor %}    
  ], 
  "series": null, 
  "cover": "{{url_for('feed_get_cover', book_id=entry.id)}}",
  "languages": [
  {% for lang in entry.languages %}  
    "{{lang.lang_code}}"{% if not loop.last %},{% endif %}
  {% endfor %}
  ], 
  "comments": "{% if entry.comments|length > 0 %}{{entry.comments[0].text.replace('"', '\\"')|safe}}{% endif %}",
  "tags": [
  {% for tag in entry.tags %}
    "{{tag.name}}"{% if not loop.last %},{% endif %}
  {% endfor %}    
  ], 
  "application_id": {{entry.id}}, 
  "series_index": {% if entry.series|length > 0 %}"{{entry.series_index}}"{% else %}null{% endif %}, 
  "last_modified": "{{entry.last_modified}}", 
  "author_sort": "{{entry.author_sort}}", 
  "uuid": "{{entry.uuid}}", 
  "timestamp": "{{entry.timestamp}}", 
  "thumbnail": "{{url_for('feed_get_cover', book_id=entry.id)}}",
  "main_format": {
    "{{entry.data[0].format|lower}}": "{{ url_for('get_opds_download_link', book_id=entry.id, book_format=entry.data[0].format|lower)}}"
  },
  "rating":{% if entry.ratings.__len__() > 0 %} "{{entry.ratings[0].rating}}.0"{% else %}0.0{% endif %},
  "authors": [
  {% for author in entry.authors %}
    "{{author.name}}"{% if not loop.last %},{% endif %}
  {% endfor %}       
  ], 
  "other_formats": {
  {% if entry.data.__len__() > 1 %}
  {% for format in entry.data[1:] %}
    "{{format.format|lower}}": "{{ url_for('get_opds_download_link', book_id=entry.id, book_format=format.format|lower)}}"{% if not loop.last %},{% endif %}
  {% endfor %}
  {% endif %} },
  "title_sort": "{{entry.sort}}"
}