Compare current validation with BFF spreadsheet and Image model required fields

[carrickr]

Primarily for Berkeley at this point, given JSON validate it and determine if a resource can be created or not. If it cannot write error to log.

For MVP required validations are:

• File is present in the S3 bucket
• It has a title
• It has a collection to put it in

Done Looks Like

• Update validator to conform to Northwestern model.

[davidschober]

@carrickr do we need validation outside of what Hyrax does? Or am I misunderstanding the scope of the issue.

[carrickr]

We want to validate it before throwing off a job to the queue (and Hyrax has no concept of how to work with S3 right now so we need to handle the file checks and stuff)

[bmquinn]

https://github.com/nulib/donut/wiki/Batch-uploads-via-CSV