require 'net/http'

uri = URI('http://images-dev.collections.yale.edu/iiif/2/ypm:85f1f218-30c1-48a4-8546-17d681f59c35.tif/full/20,/0/default.jpg')
api_key = ENV['YPM_SECRET']

req = Net::HTTP::Get.new(uri)
req['Authorization'] = "Bearer #{api_key}"

res = Net::HTTP.start(uri.hostname, uri.port,
                      use_ssl: uri.scheme == 'https') do |http|
  http.request(req)
end

open('out.jpg', 'w') do |f|
  f.write(res.read_body)
end

https://media.collections.yale.edu/tiff/{unit}/{uuid}.tif

{
  "@context": "http://iiif.io/api/discovery/0/context.json",
  "id": "https://example.org/activities/p3collection.json",
 
  "type": "OrderedCollectionPageOrderedCollection",
  "first": }
}

{
  "@context": "http://iiif.io/api/discovery/0/context.json",
  "id": "https://example.org/activities/p2.json",
  "type": "OrderedCollectionPage"
  },
  "nextpartOf": {
    "id": "https://example.org/activities/p3collection.json",
    "type": "OrderedCollectionPageOrderedCollection"
  },
  "orderedItemsprev": [{
    {
 "id": "https://example.org/activities/p1.json",
    "type": "CreateOrderedCollectionPage",
   },
  "objectnext": {
   
    "id": "https://example.org/objectsactivities/41002p3.json",
   
    "type": "jsonOrderedCollectionPage"
   
  },
   
  "endTimeorderedItems": "2019-05-10T15:31:01-04:00"
    },[
    {
      "type": "UpdateCreate",
      "object": {
        "id": "https://example.org/objects/5426841002.json",
        "type": "json"
      },
      "endTime": "2019-05-10T15:31:01-04:00"
    },
    {
      "type": "Update",
      "object": {
        "id": "https://example.org/objects/3733154268.xmljson",
        "type": "lidojson"
      },
      "endTime": "2019-05-10T1910T15:31:01Z01-04:00"
    },
        {
      "type": "DeleteUpdate",
      "object": {
        "id": "obj/10788.jsonhttps://example.org/objects/37331.xml",
        "type": "jsonlido"
      },
      "endTime": "2019-05-10T1510T19:31:01-04:0001Z"
    },
    {
  ]  }

{
  "unit": "YCBA",
  "cmsType": "obj",
  "cmsId": "1726",
  "metadata": [
    {
      "label": "logo",
      "value": "https://static.britishart.yale.edu/images/ycba_logo.jpg"
    },
    {
      "label": "label",
      "value": "Robert Dighton, 1752–1814, British, The Produce of Industry, undated"
    },
    {
      "label": "AttributionRights URI",
      "value": "Yale Center for British Art, Paul Mellon Collection, public domain"
"https://creativecommons.org/publicdomain/zero/1.0/"
    },
    {
      "label": "licenseRights Description",
      "value": "http://hdl.handle.net/10079/w6m90dq"
    },
    {
      "label": "Description",
      "value": "Twelve Illustrations to Contemporary Life and Diversions, Sheet: 6 5/8 × 10 7/8 inches (16.8 × 27.6 cm)"
   Metadata describing Yale Center for British Art collections is public domain under CC0. Copyright or other restrictions may apply to cultural works or images of those works in this record."
    },
     {
      "label": "Copyright Statement",
      "value": "Copyright Information"
    },
    {
      "label": "CreatorImage Use Rights URI",
      "value": "Robert Dighton, 1752–1814, Britishhttp://rightsstatements.org/vocab/UND/1.0/"
    },
    {
      "label": "TitleImage Use Rights",
      "value": "TheCopyright ProduceUndetermined: ofThe Industry"copyright and related rights status },of this Item has been {reviewed by the organization that has made "label": "Physical Description"the Item available, but the organization was unable to "value": "Sheet: 6 5/8 × 10 7/8 inches (16.8 × 27.6 cm)"
    },
    {
      "label": "Credit Line",
      "value": "Yale Center for British Art, Paul Mellon Collectionmake a conclusive determination as to the copyright status of the Item. Please refer to the organization that has made the Item available for more information. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use."
    },
    {
      "label": "InstitutionAttribution",
      "value": "Yale Center for British Art, Paul Mellon Collection, public domain"
    },
    {
      "label": "CollectionDescription",
      "value": "PrintsTwelve andIllustrations Drawings"to Contemporary Life and  }Diversions, Sheet: 6 5/8 × 10 7/8 inches (16.8 × 27.6 cm)"
    },
    {
      "label": "Call NumberCreator",
      "value": "B1986.29.81Robert Dighton, 1752–1814, British"
    },
    {
      "label": "homepageTitle",
      "value": ["The Produce of Industry"
    },
{    {
      "@idlabel": "https://collections.britishart.yale.edu/catalog/tms:1726",
   Physical Description",
      "labelvalue": "catalogSheet: entry6 at5/8 the× Yale10 Center7/8 for British Art",
 inches (16.8 × 27.6 cm)"
    },
    {
      "formatlabel": "text/html"Credit Line",
      "value": "Yale }Center for British Art, Paul Mellon  ]Collection"
    },
    {
      "label": "seeAlsoInstitution",
      "value": "Yale [Center for British Art"
    },
{    {
      "@idlabel": "https://collections.britishart.yale.edu/oaicatmuseum/OAIHandler?verb=GetRecord&identifier=oai:tms.ycba.yale.edu:1726&metadataPrefix=lido","Collection",
      "value": "Prints and Drawings"
   "format": "text/xml", },
    {
      "profilelabel": "http://www.lido-schema.org/schema/v1.0/lido-v1.0.xsd"Call Number",
      "value":  },"B1986.29.81"
    },
    {
   
      "@idlabel": "http://collection.britishart.yale.edu/id/page/object/1726homepage",
      "value": [
        {
          "format@id": "text/rdf+n3"https://collections.britishart.yale.edu/catalog/tms:1726",
         } "type": "Text",
    ]     }   ]
}