v3 - Ambiguous error when no request body is provided

[Dave Chen]

This bug is basically the same issue as the bug described here: https://bugs.launchpad.net/keystone/+bug/1466872.
But this bug is expected to be a blanket bug as there are many entities/API have the same issue. Instead of filing a lot of bugs in the lp,let's take this as a blanket.

Example:
dave@openstack-dev:~$ curl -g -i -X POST http://localhost:35357/v3/services -H "Content-Type: application/json" -H "Accept: application/json" -H "X-Auth-Token: 3ec87e90d60c4a318acf7b2bc6e55300"
HTTP/1.1 400 Bad Request
Date: Thu, 25 Jun 2015 03:37:52 GMT
Server: Apache/2.4.7 (Ubuntu)
Vary: X-Auth-Token
x-openstack-request-id: req-70c66170-271c-4e69-b5e6-67fa9ff91f59
Content-Length: 115
Content-Type: application/json
Via: 1.1 shzintpr02.sh.intel.com
Proxy-Connection: Keep-Alive
Connection: Keep-Alive

{"error": {"message": "create_service() takes exactly 3 arguments (2 given)", "code": 400, "title": "Bad Request"}}

[Dave Chen (wei-d-chen)]

The link of the patch: https://review.openstack.org/195429

[OpenStack Infra (hudson-openstack)]

Change abandoned by Dave Chen (<email address hidden>) on branch: master
Review: https://review.openstack.org/197996
Reason: see, https://review.openstack.org/#/c/195903.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Dave Chen (<email address hidden>) on branch: master
Review: https://review.openstack.org/198280
Reason: see, https://review.openstack.org/#/c/195903.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Dave Chen (<email address hidden>) on branch: master
Review: https://review.openstack.org/195429

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.openstack.org/214009

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/195903
Committed: https://git.openstack.org/cgit/openstack/keystone/commit/?id=d270e8757d0142dfd87100e6f05e5488e784c6e2
Submitter: Jenkins
Branch: master

commit d270e8757d0142dfd87100e6f05e5488e784c6e2
Author: Dave Chen <email address hidden>
Date: Fri Jun 26 15:32:22 2015 +0800

    Show helpful message when request body is not provided

    Avoid showing python error when no or empty request body is provided
    for creating or updating request, providing some useful information
    instead.

    Closes-Bug: #1468597
    Closes-Bug: #1466872
    Change-Id: Ie3afc7c3591b4c1338f76d00238c541a7c54bd0d

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/214009
Committed: https://git.openstack.org/cgit/openstack/keystone/commit/?id=7f84ff5cda4cdc7799827f90482197cd74a45371
Submitter: Jenkins
Branch: master

commit 7f84ff5cda4cdc7799827f90482197cd74a45371
Author: Dave Chen <email address hidden>
Date: Tue Aug 18 13:49:26 2015 +0800

    Remove unnecessary check

    We have done this in method validated(...) for all of the check
    against request body.

    Change-Id: I02361e279bb0229fd41e99a36198f2982b8635c2
    Related-Bug: #1468597