add_work needs a return value

[petrakohorst]

The sub add_work should return (at least) the put-code-url, and for good measure the result code.

[nics]

Are you sure?
Adding this minimal record to the sandbox correctly returns the put code for me:
{
"title":{"title":"Foo"},
"type":"JOURNAL_ARTICLE",
"external-ids": {
"external-id":[{
"external-id-type": "doi",
"external-id-value": "10.1016/j.jdeveco.2017.10.010",
"external-id-relationship": "SELF"
}]
}
}
Adding this invalid record correctly sets last error:
{
"title":{"title":"Foo"},
"type":"JOURNAL_ARTICLE",
"external-ids": {
"external-id":[{
"external-id-type": "doi"
}]
}
}

[petrakohorst]

I'll have to check my implementation again. Maybe I'm sending an incorrect record or I have a bug somewhere else along the line.
Thank you for testing this! I'll get back to you with more details.