Attempt to port OPDS to the new serialization for EPUB (application/epub+json), might be OPDS 2.0 (application/opds+json)

1-navigation.json

{
  "@context": "http://opds-spec.org/opds.jsonld",
  
  "metadata": {"title": "eBook Store"},

  "links": [
    {"rel": "self", "href": "/navigation.json", "type": "application/opds+json"},
    {"rel": "shelf", "href": "/shelf", "type": "application/opds+json"}
  ],
  
  "navigation": [
    {"title": "New Releases", "href": "/new", "type": "application/opds+json"},
    {"title": "Best Selling", "href": "/top", "type": "application/opds+json"},
    {"title": "Categories", "href": "/categories", "type": "application/opds+json"}
  ]
}

2-simple-acquisition.json

{
  "@context": "http://opds-spec.org/opds.jsonld",
  
  "metadata": {"title": "New Releases"},

  "links": [
    {"rel": "self", "href": "/acquisition.json", "type": "application/opds+json"},
    {"rel": "search", "href": "/search?q={query}", "type": "application/opds+json"},
    {"rel": "next", "href": "/?page=2", "type": "application/opds+json"}
  ],
  
  "publications": [
    {
      "metadata": {
        "@type": "http://schema.org/EBook",
        "title": "The Girl in the Spider's Web",
        "author": "David Lagercrantz",
        "translator": "George Goulding",
        "identifier": "urn:isbn:9780385354288",
        "modified": "2016-02-18T10:32:18Z",
        "subject": {"name": "Thrillers / Technological", "code": "FIC036000", "scheme": "https://www.bisg.org/bisac/"},
        "belongs_to": {"series": {"title": "Millenium", "position": 4}}
      },
      
      "links": [
        {"rel": "self", "href": "http://example.org/publication.json", "type": "application/opds-publication+json"},
        {"rel": "related", "href": "http://example.org/recommended.json", "type": "application/opds+json", "title": "Recommended Books"}
      ],
        
      "images": [
        {"href": "/cover.jpg", "type": "image/jpeg", "height": "1000", "width": "700"},
        {"href": "/cover.svg", "type": "image/svg+xml"},
        {"href": "/cover.jpg?size=smaller", "type": "image/jpeg", "height": "333", "width": "233"}
      ],
        
      "acquire": [
        {"rel": "buy", "href": "/buy", "type": "application/epub+zip", "price": {"currency": "USD", "value": "13.99"}}
      ]
    }
  ]
}

3-acquisition+facets+breadcrumbs.json

{
  "@context": "http://opds-spec.org/opds.jsonld",
  
  "metadata": {"title": "New Releases"},

  "links": [
    {"rel": "self", "href": "/acquisition.json", "type": "application/opds+json"},
    {"rel": "search", "href": "/search?q={query}", "type": "application/opds+json"},
    {"rel": "next", "href": "/?page=2", "type": "application/opds+json"}
  ],
  
  "facets": [
    {
      "metadata": {"title": "Language"},
      "links": [
        { "href": "/fr", "title": "French", "rel": ["default", "active"]},
        { "href": "/en", "title": "English"}
      ]
    },
    {
      "metadata": {"title": "Sort"},
      "links": [
        {"href": "/popular", "title": "Popular", "rel": "default"},
        {"href": "/new", "title": "New"}
      ]
    }
  ],
  
  "breadcrumbs": [{
    "links": [
      {"title": "All Books", "href": "/feeds/All_Books"},
      {"title": "Fiction", "href": "/feeds/Fiction"},
      {"title": "Thrillers", "href": "/feeds/Thrillers"}
    ]
  }],
  
  "publications": [
    {
      "metadata": {
        "@type": "http://schema.org/EBook",
        "title": "The Girl in the Spider's Web",
        "author": "David Lagercrantz",
        "translator": "George Goulding",
        "identifier": "urn:isbn:9780385354288",
        "modified": "2016-02-18T10:32:18Z",
        "subject": {"name": "Thrillers / Technological", "code": "FIC036000", "scheme": "https://www.bisg.org/bisac/"},
        "belongs_to": {"series": {"title": "Millenium", "position": 4}}
      },
      
      "links": [
        {"rel": "self", "href": "http://example.org/publication.json", "type": "application/opds-publication+json"},
        {"rel": "related", "href": "http://example.org/recommended.json", "type": "application/opds+json", "title": "Recommended Books"}
      ],
        
      "images": [
        {"href": "/cover.jpg", "type": "image/jpeg", "height": "1000", "width": "700"},
        {"href": "/cover.svg", "type": "image/svg+xml"},
        {"href": "/cover.jpg?size=smaller", "type": "image/jpeg", "height": "333", "width": "233"}
      ],
        
      "acquire": [
        {"rel": "buy", "href": "/buy", "type": "application/epub+zip", "price": {"currency": "USD", "value": "13.99"}}
      ]
    }
  ]
}

4-multiple-collections.json

{
  "@context": "http://opds-spec.org/opds.jsonld",
  
  "metadata": {"title": "eBook Store"},

  "links": [
    {"rel": "self", "href": "/navigation.json", "type": "application/opds+json"},
    {"rel": "search", "href": "/search?q={query}", "type": "application/opds+json"},
    {"rel": "shelf", "href": "/shelf", "type": "application/opds+json"}
  ],
  
 "groups": [
   {
     "metadata": {"title": "Browse"},
     "navigation": [
       {"title": "New Releases", "href": "/new", "type": "application/opds+json"},
       {"title": "Best Selling", "href": "/top", "type": "application/opds+json"},
       {"title": "Categories", "href": "/categories", "type": "application/opds+json"}
     ],
   },
   {
     "metadata": {"title": "Fiction"},
     "links": [{"rel": "self", "href": "/fiction.json", "type": "application/opds+json"}],
     "publications": []
   },
   {
     "metadata": {"title": "Non-Fiction"},
     "links": [{"rel": "self", "href": "/non-fiction.json", "type": "application/opds+json"}],
     "publications": []
   },
   {
     "metadata": {"title": "Young Adult (No Link)"},
     "publications": []
   }
  ]
  
}