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A lightweight API for indexing metadata and links to existing derivatives into Avalon.  

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:files – an array masterfile hashes, example below. label and structure are optional. The last five fields must have the specific specified values (for now).

      [ { file_location: absolute_location,
      label: "Part 1",
      file_checksum: "7ae24368ccb7a6c6422a14ff73f33c9a",
      file_size: "199160",
      duration: "6315",
      display_aspect_ratio: "1.7777777777777777",
      original_frame_size: "200x110",
      file_format: "Moving image",
      poster_offset: "0:02",
      thumbnail_offset: "0:02",
      structure: a string containing xml
      workflow_name: "avalon",
      percent_complete: "100.0",
      percent_succeeded: "100.0",
      percent_failed: "0",
      status_code: "COMPLETED", } , ...]

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Bib import failure will result in a JSON response: {errors: ['Bib import failed', e.message]}, status: 422

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• Should we be strict with CRUD? Yes, for now. Exception is PUTS and POST return effected item's pid.
• Regarding the 202 Code, this may not be needed, but I put in place in the event we have to accept API requests and wait to go test streaming (make sure the derivatives are there).  This is a worst case if our file storage is too slow (which would be really bad of course).  
• Should we let GET items/ return a list of all items? Pagination is in place: :page and :per_page can be specified in request parameters. 
• Additionally allow GET to be called without an API key/IP restrictions (public).  Would be useful for third parties who want data feeds from us. For now GETs are protected by tokens.

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