Collection+JSON item-error extension

item-error.json

{
  "collection": {
    "version": "123",
    "items": [{
      "href": "http://example.com/contacts/1",
      "data": [
        {"name": "id", "value": "1"}
      ]
    },{
      "item-error": "This object is invalid",
      "data": [
        {"name": "id", "value": ""}
      ]
    },{
      "href": "http://example.com/contacts/2",
      "data": [
        {"name": "id", "value": "1"}
      ]
    }]
  }
}

Interesting thought, for our current scenario - I don't think so. Overall, I think it is a great idea. I think I would prefer that to listing off errors in the errors object. In our scenario it is going to matter less what the exact error is. We are going to care more about which objects had errors. Down the road though, I could see us using an error on the data array.

@glanotte

ok, i think i see what you're saying. you want an error property on the item, not the data element (as i suggested) and not just on the representation (where it is now).

so, are you ok, w/ a single string ("itemerror" : "not valid" )?
would a boolean work just as well ("itemerror" : "true")?
do you really need an object here? ("itemerror" : {"code" : "123", "message" : "invalid object"})?

do you plan do use something at the data level at some point?
in human-drive UIs, how do you see this "itemerror" being handled? rendered as a message? something else?