Re: 409 Conflict - exposing more details

On 14 Feb 2011, at 19:20, Julian Reschke wrote:

> On 14.02.2011 20:02, Roy T. Fielding wrote:
>> On Feb 14, 2011, at 8:02 AM, Julian Reschke wrote:
>> 
>>> in a project I'm currently working on, my server returns 409 Conflict when trying to DELETE a resource that still has strong references from other resources -- so what I want to tell the client is that you can't DELETE resource A as long as resource B references it.
>>> 
>>> Now, with close coupling between client and server this can easily be communicated in the response body, be it JSON or XML.
>>> 
>>> However, I was wondering whether this use case is common enough to standardize it? Maybe with a link relation?
>> 
>> A link relation makes sense.

+1

>>  What would you call it?
>> required-by, dependency-of, bound-to, ...
> 
> "dependency-of" sounds good to me.

Just so I have the model clear in my head...

If one has a resource A that cannot be DELETEd as long as resource B references it, then:

Resource A is a "dependency-of" resource B.
Resource B "depends-on" resource A (where "depends-on" is implicit by the fact that resource B references resource A).

Correct?

Ben
 

Received on Wednesday, 16 February 2011 07:46:31 UTC