<div dir="ltr"><div><div><br>Does OpenStack have a policy for handling of extra/unexpected arguments? Examples of extra arguments are unexpected query parameters on a GET request or extra fields provided in the JSON body of a POST.<br>
<br></div>Many web APIs ignore extra arguments to make it easier to add support for new features. For example, if 'GET /users' adds support for sorting with 'GET /users?sort=id' , new clients will still work with old servers, they just won't get the users back in sorted order.<br>
<br></div><div>If we strictly validate inputs that would make it more difficult to extend our APIs.<br></div><div><br></div>- Brant<br><br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Sun, Jun 2, 2013 at 4:11 AM, Bruno Semperlotti <span dir="ltr"><<a href="mailto:bruno.semperlotti@gmail.com" target="_blank">bruno.semperlotti@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Hi,</div><div><br></div><div>As a first contribution, I recently worked on a small bug about bad error response when passing incorrect parameters in API requests (<span style="color:rgb(102,102,102);font-family:Ubuntu,'Bitstream Vera Sans','DejaVu Sans',Tahoma,sans-serif;font-size:12px;line-height:18px"><a href="https://bugs.launchpad.net/keystone/+bug/1110435" target="_blank">#1110435</a></span>).</div>
<div>There is also this other bug about bad application behavior when API requests data are incorrect or missing (<a href="https://bugs.launchpad.net/keystone/+bug/999084" target="_blank">#999084</a>)</div><div><br></div>
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My point is that no systematic data validation seems to be made when receiving API requests, leading to potential unwanted behavior or instability.</div><div><br></div><div>I am working on a prototype to enable simple validation of all API requests data using json schemas and the python package <a href="https://pypi.python.org/pypi/jsonschema" target="_blank">jsonschema</a>.</div>
<div><br></div><div>As I am new in the openstack community and also because my work uses the json schema specification which is still a draft with a new package dependency, I was looking for some feedback about this idea before going on and filling a blueprint. </div>
<div><br></div><div>Regards,</div><br clear="all"><div>--<br>Bruno Semperlotti</div>
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