CDL Microservices and Ruby

Chris Beer's Microservices Ruby wrappers

• pairtree Now there's an official CDL pairtree implementation in ruby called orchard
• noid Identifier minting
• anvl A Name-Value Language "Basically like email headers"
• dflat Filesystem Convention for managing digital objects (maybe versioning too)
• checkm Manifest format ... Filename/checksum/createdate
• lockit File locking that is safe for Network filesystems
• namaste Name as Text -- file names on filesystems tell you something about what the directory contains

• microservices A Rails3 app that tries to put all of these pieces together (work in progress)

• bagit Bagit manifest format (from Library of Congress)

Use Case(s)

Given that I have some image files
And the files already have names
Then I should be able to put the files somewhere
And I should be able to collect user-contributed metadata
And I should be able to track checksums for files
And I should be able to access content at persistent URLs

needed

• graphical metadata editing and generation of filesystem
• fixity service
• inventory and solr ingestion