Create items from DOI through Web API

[Roger Hyam]

I want to seed a shared library through the Web API with about 45,000 DOIs - effectively use the "Add by identifier..." that is available in the client.

Looking around I don't see this as a feature. Am I missing the obvious? Could someone suggest a workflow?

I was thinking of using the DOI content negotiation to get the metadata for each DOI and then posting that. But which CSL format? Is there something I can use directly in the API or will I have to knit all the fields into the API template object?

Surely this is a common use case! 

Any example code would be most appreciated.