[openstack-dev] [api] Using query string or request body to pass parameter

Alex Xu soulxu at gmail.com
Tue Dec 9 06:28:33 UTC 2014


Kevin, thanks for the info! I agree with you. RFC is the authority. use
payload in the DELETE isn't good way.

2014-12-09 7:58 GMT+08:00 Kevin L. Mitchell <kevin.mitchell at rackspace.com>:

> On Tue, 2014-12-09 at 07:38 +0800, Alex Xu wrote:
> > Not sure all, nova is limited
> > at
> https://github.com/openstack/nova/blob/master/nova/api/openstack/wsgi.py#L79
> > That under our control.
>
> It is, but the client frameworks aren't, and some of them prohibit
> sending a body with a DELETE request.  Further, RFC7231 has this to say
> about DELETE request bodies:
>
>         A payload within a DELETE request message has no defined semantics;
>         sending a payload body on a DELETE request might cause some
> existing
>         implementations to reject the request.
>
> (§4.3.5)
>
> I think we have to conclude that, if we need a request body, we cannot
> use the DELETE method.  We can modify the operation, such as setting a
> "force" flag, with a query parameter on the URI, but a request body
> should be considered out of bounds with respect to DELETE.
>
> > Maybe not just ask question for delete, also for other method.
> >
> > 2014-12-09 1:11 GMT+08:00 Kevin L. Mitchell <
> kevin.mitchell at rackspace.com>:
> >         On Mon, 2014-12-08 at 14:07 +0800, Eli Qiao wrote:
> >         > I wonder if we can use body in delete, currently , there isn't
> any
> >         > case used in v2/v3 api.
> >
> >         No, many frameworks raise an error if you try to include a body
> with a
> >         DELETE request.
> >         --
> >         Kevin L. Mitchell <kevin.mitchell at rackspace.com>
> >         Rackspace
>
> --
> Kevin L. Mitchell <kevin.mitchell at rackspace.com>
> Rackspace
>
>
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