Example: How to create a bare-bones IIIF Presentation Manifest w/ O'Sullivan

1_simple_manifest.rb

require 'iiif/presentation'

MY_IIIF_IMAGE_SERVER = 'http://libimages1.princeton.edu/loris/'
SOME_IIIF_IMAGES = [
  { id: 'pudl0001%2F4609321%2Fs42%2F00000006.jp2', label: "Page 1" },
  { id: 'pudl0001%2F4609321%2Fs42%2F00000007.jp2', label: "Page 2" },
  { id: 'pudl0001%2F4609321%2Fs42%2F00000008.jp2', label: "Page 3" },
  { id: 'pudl0001%2F4609321%2Fs42%2F00000009.jp2', label: "Page 4" },
  { id: 'pudl0001%2F4609321%2Fs42%2F00000010.jp2', label: "Page 5" }
]

def image_annotation_from_id(image_id, label)
  annotation = IIIF::Presentation::Annotation.new
  annotation.resource = image_resource_from_page_hash(image_id)
  canvas = IIIF::Presentation::Canvas.new
  canvas_uri = "http://example.org/my_book/pages/#{image_id}"
  canvas['@id'] = canvas_uri
  canvas.label = label
  canvas.width = annotation.resource['width']
  canvas.height = annotation.resource['height']
  canvas.images << annotation
  canvas
end

def image_resource_from_page_hash(page_id)
  base_uri = "#{MY_IIIF_IMAGE_SERVER}#{page_id}"
  params = {service_id: base_uri}
  image_resource = IIIF::Presentation::ImageResource.create_image_api_image_resource(params)
  image_resource
end

## Main

manifest = IIIF::Presentation::Manifest.new('@id' => 'http://example.org/my_book')
manifest.label = "My Book"
manifest.viewing_hint = 'paged'
manifest.metadata = [
  { 'Foo' => 'Bar' },
  { 'Bazzers' => [ 'Quux', 'Corge' ]}
]

sequence = IIIF::Presentation::Sequence.new
SOME_IIIF_IMAGES.each do |image|
  sequence.canvases << image_annotation_from_id(image[:id], image[:label])
end

manifest.sequences << sequence

thumb = manifest.sequences.first.canvases.first.images.first.resource['@id']
manifest.insert_after(existing_key: 'label', new_key: 'thumbnail', value: thumb)

puts manifest.to_json(pretty: true)

2_simple_output.json

{
  "@context": "http://iiif.io/api/presentation/2/context.json",
  "@id": "http://example.org/my_book",
  "@type": "sc:Manifest",
  "label": "My Book",
  "thumbnail": "http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000006.jp2/full/!200,200/0/default.jpg",
  "viewingHint": "paged",
  "metadata": [
    {
      "Foo": "Bar"
    },
    {
      "Bazzers": [
        "Quux",
        "Corge"
      ]
    }
  ],
  "sequences": [
    {
      "@type": "sc:Sequence",
      "canvases": [
        {
          "@id": "http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000006.jp2",
          "@type": "sc:Canvas",
          "label": "Page 1",
          "width": 5434,
          "height": 7200,
          "images": [
            {
              "@type": "oa:Annotation",
              "motivation": "sc:painting",
              "resource": {
                "@id": "http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000006.jp2/full/!200,200/0/default.jpg",
                "@type": "dcterms:Image",
                "format": "image/jpeg",
                "width": 5434,
                "height": 7200,
                "service": {
                  "@context": "http://iiif.io/api/image/2/context.json",
                  "@id": "http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000006.jp2",
                  "profile": "http://iiif.io/api/image/2/level2.json"
                }
              }
            }
          ]
        },
        {
          "@id": "http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000007.jp2",
          "@type": "sc:Canvas",
          "label": "Page 2",
          "width": 5387,
          "height": 7200,
          "images": [
            {
              "@type": "oa:Annotation",
              "motivation": "sc:painting",
              "resource": {
                "@id": "http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000007.jp2/full/!200,200/0/default.jpg",
                "@type": "dcterms:Image",
                "format": "image/jpeg",
                "width": 5387,
                "height": 7200,
                "service": {
                  "@context": "http://iiif.io/api/image/2/context.json",
                  "@id": "http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000007.jp2",
                  "profile": "http://iiif.io/api/image/2/level2.json"
                }
              }
            }
          ]
        },
        {
          "@id": "http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000008.jp2",
          "@type": "sc:Canvas",
          "label": "Page 3",
          "width": 5434,
          "height": 7200,
          "images": [
            {
              "@type": "oa:Annotation",
              "motivation": "sc:painting",
              "resource": {
                "@id": "http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000008.jp2/full/!200,200/0/default.jpg",
                "@type": "dcterms:Image",
                "format": "image/jpeg",
                "width": 5434,
                "height": 7200,
                "service": {
                  "@context": "http://iiif.io/api/image/2/context.json",
                  "@id": "http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000008.jp2",
                  "profile": "http://iiif.io/api/image/2/level2.json"
                }
              }
            }
          ]
        },
        {
          "@id": "http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000009.jp2",
          "@type": "sc:Canvas",
          "label": "Page 4",
          "width": 5387,
          "height": 7200,
          "images": [
            {
              "@type": "oa:Annotation",
              "motivation": "sc:painting",
              "resource": {
                "@id": "http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000009.jp2/full/!200,200/0/default.jpg",
                "@type": "dcterms:Image",
                "format": "image/jpeg",
                "width": 5387,
                "height": 7200,
                "service": {
                  "@context": "http://iiif.io/api/image/2/context.json",
                  "@id": "http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000009.jp2",
                  "profile": "http://iiif.io/api/image/2/level2.json"
                }
              }
            }
          ]
        },
        {
          "@id": "http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000010.jp2",
          "@type": "sc:Canvas",
          "label": "Page 5",
          "width": 5434,
          "height": 7200,
          "images": [
            {
              "@type": "oa:Annotation",
              "motivation": "sc:painting",
              "resource": {
                "@id": "http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000010.jp2/full/!200,200/0/default.jpg",
                "@type": "dcterms:Image",
                "format": "image/jpeg",
                "width": 5434,
                "height": 7200,
                "service": {
                  "@context": "http://iiif.io/api/image/2/context.json",
                  "@id": "http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000010.jp2",
                  "profile": "http://iiif.io/api/image/2/level2.json"
                }
              }
            }
          ]
        }
      ]
    }
  ]
}

3_parsing.rb

2.2.2 :001 > require 'iiif/presentation'
 => true 
2.2.2 :002 > my_manifest = '{"@context":"http://iiif.io/api/presentation/2/context.json","@id":"http://example.org/my_book","@type":"sc:Manifest","label":"My Book","thumbnail":"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000006.jp2/full/!200,200/0/default.jpg","viewingHint":"paged","metadata":[{"Foo":"Bar"},{"Bazzers":["Quux","Corge"]}],"sequences":[{"@type":"sc:Sequence","canvases":[{"@id":"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000006.jp2","@type":"sc:Canvas","label":"Page 1","width":5434,"height":7200,"images":[{"@type":"oa:Annotation","motivation":"sc:painting","resource":{"@id":"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000006.jp2/full/!200,200/0/default.jpg","@type":"dcterms:Image","format":"image/jpeg","width":5434,"height":7200,"service":{"@context":"http://iiif.io/api/image/2/context.json","@id":"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000006.jp2","profile":"http://iiif.io/api/image/2/level2.json"}}}]},{"@id":"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000007.jp2","@type":"sc:Canvas","label":"Page 2","width":5387,"height":7200,"images":[{"@type":"oa:Annotation","motivation":"sc:painting","resource":{"@id":"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000007.jp2/full/!200,200/0/default.jpg","@type":"dcterms:Image","format":"image/jpeg","width":5387,"height":7200,"service":{"@context":"http://iiif.io/api/image/2/context.json","@id":"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000007.jp2","profile":"http://iiif.io/api/image/2/level2.json"}}}]},{"@id":"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000008.jp2","@type":"sc:Canvas","label":"Page 3","width":5434,"height":7200,"images":[{"@type":"oa:Annotation","motivation":"sc:painting","resource":{"@id":"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000008.jp2/full/!200,200/0/default.jpg","@type":"dcterms:Image","format":"image/jpeg","width":5434,"height":7200,"service":{"@context":"http://iiif.io/api/image/2/context.json","@id":"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000008.jp2","profile":"http://iiif.io/api/image/2/level2.json"}}}]},{"@id":"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000009.jp2","@type":"sc:Canvas","label":"Page 4","width":5387,"height":7200,"images":[{"@type":"oa:Annotation","motivation":"sc:painting","resource":{"@id":"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000009.jp2/full/!200,200/0/default.jpg","@type":"dcterms:Image","format":"image/jpeg","width":5387,"height":7200,"service":{"@context":"http://iiif.io/api/image/2/context.json","@id":"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000009.jp2","profile":"http://iiif.io/api/image/2/level2.json"}}}]},{"@id":"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000010.jp2","@type":"sc:Canvas","label":"Page 5","width":5434,"height":7200,"images":[{"@type":"oa:Annotation","motivation":"sc:painting","resource":{"@id":"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000010.jp2/full/!200,200/0/default.jpg","@type":"dcterms:Image","format":"image/jpeg","width":5434,"height":7200,"service":{"@context":"http://iiif.io/api/image/2/context.json","@id":"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000010.jp2","profile":"http://iiif.io/api/image/2/level2.json"}}}]}]}]}'
 => "{\"@context\":\"http://iiif.io/api/presentation/2/context.json\",\"@id\":\"http://example.org/my_book\",\"@type\":\"sc:Manifest\",\"label\":\"My Book\",\"thumbnail\":\"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000006.jp2/full/!200,200/0/default.jpg\",\"viewingHint\":\"paged\",\"metadata\":[{\"Foo\":\"Bar\"},{\"Bazzers\":[\"Quux\",\"Corge\"]}],\"sequences\":[{\"@type\":\"sc:Sequence\",\"canvases\":[{\"@id\":\"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000006.jp2\",\"@type\":\"sc:Canvas\",\"label\":\"Page 1\",\"width\":5434,\"height\":7200,\"images\":[{\"@type\":\"oa:Annotation\",\"motivation\":\"sc:painting\",\"resource\":{\"@id\":\"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000006.jp2/full/!200,200/0/default.jpg\",\"@type\":\"dcterms:Image\",\"format\":\"image/jpeg\",\"width\":5434,\"height\":7200,\"service\":{\"@context\":\"http://iiif.io/api/image/2/context.json\",\"@id\":\"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000006.jp2\",\"profile\":\"http://iiif.io/api/image/2/level2.json\"}}}]},{\"@id\":\"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000007.jp2\",\"@type\":\"sc:Canvas\",\"label\":\"Page 2\",\"width\":5387,\"height\":7200,\"images\":[{\"@type\":\"oa:Annotation\",\"motivation\":\"sc:painting\",\"resource\":{\"@id\":\"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000007.jp2/full/!200,200/0/default.jpg\",\"@type\":\"dcterms:Image\",\"format\":\"image/jpeg\",\"width\":5387,\"height\":7200,\"service\":{\"@context\":\"http://iiif.io/api/image/2/context.json\",\"@id\":\"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000007.jp2\",\"profile\":\"http://iiif.io/api/image/2/level2.json\"}}}]},{\"@id\":\"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000008.jp2\",\"@type\":\"sc:Canvas\",\"label\":\"Page 3\",\"width\":5434,\"height\":7200,\"images\":[{\"@type\":\"oa:Annotation\",\"motivation\":\"sc:painting\",\"resource\":{\"@id\":\"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000008.jp2/full/!200,200/0/default.jpg\",\"@type\":\"dcterms:Image\",\"format\":\"image/jpeg\",\"width\":5434,\"height\":7200,\"service\":{\"@context\":\"http://iiif.io/api/image/2/context.json\",\"@id\":\"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000008.jp2\",\"profile\":\"http://iiif.io/api/image/2/level2.json\"}}}]},{\"@id\":\"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000009.jp2\",\"@type\":\"sc:Canvas\",\"label\":\"Page 4\",\"width\":5387,\"height\":7200,\"images\":[{\"@type\":\"oa:Annotation\",\"motivation\":\"sc:painting\",\"resource\":{\"@id\":\"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000009.jp2/full/!200,200/0/default.jpg\",\"@type\":\"dcterms:Image\",\"format\":\"image/jpeg\",\"width\":5387,\"height\":7200,\"service\":{\"@context\":\"http://iiif.io/api/image/2/context.json\",\"@id\":\"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000009.jp2\",\"profile\":\"http://iiif.io/api/image/2/level2.json\"}}}]},{\"@id\":\"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000010.jp2\",\"@type\":\"sc:Canvas\",\"label\":\"Page 5\",\"width\":5434,\"height\":7200,\"images\":[{\"@type\":\"oa:Annotation\",\"motivation\":\"sc:painting\",\"resource\":{\"@id\":\"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000010.jp2/full/!200,200/0/default.jpg\",\"@type\":\"dcterms:Image\",\"format\":\"image/jpeg\",\"width\":5434,\"height\":7200,\"service\":{\"@context\":\"http://iiif.io/api/image/2/context.json\",\"@id\":\"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000010.jp2\",\"profile\":\"http://iiif.io/api/image/2/level2.json\"}}}]}]}]}" 
2.2.2 :003 > my_resource = IIIF::Service.parse(my_manifest)
 => #<IIIF::Presentation::Manifest:0x00000001c4aff8 @data={"@type"=>"sc:Manifest", "@context"=>"http://iiif.io/api/presentation/2/context.json", "@id"=>"http://example.org/my_book", "label"=>"My Book", "thumbnail"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000006.jp2/full/!200,200/0/default.jpg", "viewing_hint"=>"paged", "metadata"=>[{"foo"=>"Bar"}, {"bazzers"=>["Quux", "Corge"]}], "sequences"=>[#<IIIF::Presentation::Sequence:0x000000012d8718 @data={"@type"=>"sc:Sequence", "canvases"=>[#<IIIF::Presentation::Canvas:0x0000000150b0f8 @data={"@type"=>"sc:Canvas", "@id"=>"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000006.jp2", "label"=>"Page 1", "width"=>5434, "height"=>7200, "images"=>[#<IIIF::Presentation::Annotation:0x000000015eca08 @data={"@type"=>"oa:Annotation", "motivation"=>"sc:painting", "resource"=>#<IIIF::Presentation::Resource:0x000000014bb328 @data={"@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000006.jp2/full/!200,200/0/default.jpg", "@type"=>"dcterms:Image", "format"=>"image/jpeg", "width"=>5434, "height"=>7200, "service"=>#<IIIF::Service:0x000000016c4ae8 @data={"@context"=>"http://iiif.io/api/image/2/context.json", "@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000006.jp2", "profile"=>"http://iiif.io/api/image/2/level2.json"}>}>}>]}>, #<IIIF::Presentation::Canvas:0x00000001663748 @data={"@type"=>"sc:Canvas", "@id"=>"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000007.jp2", "label"=>"Page 2", "width"=>5387, "height"=>7200, "images"=>[#<IIIF::Presentation::Annotation:0x000000018d6778 @data={"@type"=>"oa:Annotation", "motivation"=>"sc:painting", "resource"=>#<IIIF::Presentation::Resource:0x00000001904d08 @data={"@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000007.jp2/full/!200,200/0/default.jpg", "@type"=>"dcterms:Image", "format"=>"image/jpeg", "width"=>5387, "height"=>7200, "service"=>#<IIIF::Service:0x00000001926160 @data={"@context"=>"http://iiif.io/api/image/2/context.json", "@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000007.jp2", "profile"=>"http://iiif.io/api/image/2/level2.json"}>}>}>]}>, #<IIIF::Presentation::Canvas:0x000000019249a0 @data={"@type"=>"sc:Canvas", "@id"=>"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000008.jp2", "label"=>"Page 3", "width"=>5434, "height"=>7200, "images"=>[#<IIIF::Presentation::Annotation:0x00000001953408 @data={"@type"=>"oa:Annotation", "motivation"=>"sc:painting", "resource"=>#<IIIF::Presentation::Resource:0x000000019ba9f0 @data={"@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000008.jp2/full/!200,200/0/default.jpg", "@type"=>"dcterms:Image", "format"=>"image/jpeg", "width"=>5434, "height"=>7200, "service"=>#<IIIF::Service:0x000000019f1c20 @data={"@context"=>"http://iiif.io/api/image/2/context.json", "@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000008.jp2", "profile"=>"http://iiif.io/api/image/2/level2.json"}>}>}>]}>, #<IIIF::Presentation::Canvas:0x000000019f0b40 @data={"@type"=>"sc:Canvas", "@id"=>"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000009.jp2", "label"=>"Page 4", "width"=>5387, "height"=>7200, "images"=>[#<IIIF::Presentation::Annotation:0x00000001a2a228 @data={"@type"=>"oa:Annotation", "motivation"=>"sc:painting", "resource"=>#<IIIF::Presentation::Resource:0x00000001a43d90 @data={"@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000009.jp2/full/!200,200/0/default.jpg", "@type"=>"dcterms:Image", "format"=>"image/jpeg", "width"=>5387, "height"=>7200, "service"=>#<IIIF::Service:0x00000001a51418 @data={"@context"=>"http://iiif.io/api/image/2/context.json", "@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000009.jp2", "profile"=>"http://iiif.io/api/image/2/level2.json"}>}>}>]}>, #<IIIF::Presentation::Canvas:0x00000001a506d0 @data={"@type"=>"sc:Canvas", "@id"=>"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000010.jp2", "label"=>"Page 5", "width"=>5434, "height"=>7200, "images"=>[#<IIIF::Presentation::Annotation:0x00000001a80358 @data={"@type"=>"oa:Annotation", "motivation"=>"sc:painting", "resource"=>#<IIIF::Presentation::Resource:0x00000001a9c080 @data={"@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000010.jp2/full/!200,200/0/default.jpg", "@type"=>"dcterms:Image", "format"=>"image/jpeg", "width"=>5434, "height"=>7200, "service"=>#<IIIF::Service:0x00000001adffb0 @data={"@context"=>"http://iiif.io/api/image/2/context.json", "@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000010.jp2", "profile"=>"http://iiif.io/api/image/2/level2.json"}>}>}>]}>]}>]}> 
2.2.2 :004 > my_resource['@type']
 => "sc:Manifest" 
2.2.2 :005 > my_resource.sequences
 => [#<IIIF::Presentation::Sequence:0x000000012d8718 @data={"@type"=>"sc:Sequence", "canvases"=>[#<IIIF::Presentation::Canvas:0x0000000150b0f8 @data={"@type"=>"sc:Canvas", "@id"=>"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000006.jp2", "label"=>"Page 1", "width"=>5434, "height"=>7200, "images"=>[#<IIIF::Presentation::Annotation:0x000000015eca08 @data={"@type"=>"oa:Annotation", "motivation"=>"sc:painting", "resource"=>#<IIIF::Presentation::Resource:0x000000014bb328 @data={"@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000006.jp2/full/!200,200/0/default.jpg", "@type"=>"dcterms:Image", "format"=>"image/jpeg", "width"=>5434, "height"=>7200, "service"=>#<IIIF::Service:0x000000016c4ae8 @data={"@context"=>"http://iiif.io/api/image/2/context.json", "@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000006.jp2", "profile"=>"http://iiif.io/api/image/2/level2.json"}>}>}>]}>, #<IIIF::Presentation::Canvas:0x00000001663748 @data={"@type"=>"sc:Canvas", "@id"=>"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000007.jp2", "label"=>"Page 2", "width"=>5387, "height"=>7200, "images"=>[#<IIIF::Presentation::Annotation:0x000000018d6778 @data={"@type"=>"oa:Annotation", "motivation"=>"sc:painting", "resource"=>#<IIIF::Presentation::Resource:0x00000001904d08 @data={"@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000007.jp2/full/!200,200/0/default.jpg", "@type"=>"dcterms:Image", "format"=>"image/jpeg", "width"=>5387, "height"=>7200, "service"=>#<IIIF::Service:0x00000001926160 @data={"@context"=>"http://iiif.io/api/image/2/context.json", "@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000007.jp2", "profile"=>"http://iiif.io/api/image/2/level2.json"}>}>}>]}>, #<IIIF::Presentation::Canvas:0x000000019249a0 @data={"@type"=>"sc:Canvas", "@id"=>"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000008.jp2", "label"=>"Page 3", "width"=>5434, "height"=>7200, "images"=>[#<IIIF::Presentation::Annotation:0x00000001953408 @data={"@type"=>"oa:Annotation", "motivation"=>"sc:painting", "resource"=>#<IIIF::Presentation::Resource:0x000000019ba9f0 @data={"@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000008.jp2/full/!200,200/0/default.jpg", "@type"=>"dcterms:Image", "format"=>"image/jpeg", "width"=>5434, "height"=>7200, "service"=>#<IIIF::Service:0x000000019f1c20 @data={"@context"=>"http://iiif.io/api/image/2/context.json", "@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000008.jp2", "profile"=>"http://iiif.io/api/image/2/level2.json"}>}>}>]}>, #<IIIF::Presentation::Canvas:0x000000019f0b40 @data={"@type"=>"sc:Canvas", "@id"=>"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000009.jp2", "label"=>"Page 4", "width"=>5387, "height"=>7200, "images"=>[#<IIIF::Presentation::Annotation:0x00000001a2a228 @data={"@type"=>"oa:Annotation", "motivation"=>"sc:painting", "resource"=>#<IIIF::Presentation::Resource:0x00000001a43d90 @data={"@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000009.jp2/full/!200,200/0/default.jpg", "@type"=>"dcterms:Image", "format"=>"image/jpeg", "width"=>5387, "height"=>7200, "service"=>#<IIIF::Service:0x00000001a51418 @data={"@context"=>"http://iiif.io/api/image/2/context.json", "@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000009.jp2", "profile"=>"http://iiif.io/api/image/2/level2.json"}>}>}>]}>, #<IIIF::Presentation::Canvas:0x00000001a506d0 @data={"@type"=>"sc:Canvas", "@id"=>"http://example.org/my_book/pages/pudl0001%2F4609321%2Fs42%2F00000010.jp2", "label"=>"Page 5", "width"=>5434, "height"=>7200, "images"=>[#<IIIF::Presentation::Annotation:0x00000001a80358 @data={"@type"=>"oa:Annotation", "motivation"=>"sc:painting", "resource"=>#<IIIF::Presentation::Resource:0x00000001a9c080 @data={"@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000010.jp2/full/!200,200/0/default.jpg", "@type"=>"dcterms:Image", "format"=>"image/jpeg", "width"=>5434, "height"=>7200, "service"=>#<IIIF::Service:0x00000001adffb0 @data={"@context"=>"http://iiif.io/api/image/2/context.json", "@id"=>"http://libimages1.princeton.edu/loris/pudl0001%2F4609321%2Fs42%2F00000010.jp2", "profile"=>"http://iiif.io/api/image/2/level2.json"}>}>}>]}>]}>] 

I know this gist is a few years old but I wanted to point out that the metadata section is a bit misleading. It seems to me that it should be more like...

manifest.metadata = [
{ 'label' => 'Foo', 'value' => 'Bar' },
]

I don't know about the multiple values... I'll try that now...

I think maybe something like this:

manifest.metadata = [
{ 'label' => 'Foo', 'value' => 'Bar' },
{ 'label' => 'Bazzers', 'value' => [ {'@value' => 'Quux'}, {'@value' => 'Corge'} ] }
]

Going to run that through the validator from https://github.com/IIIF/presentation-validato and see what happens...