Hi all, This is a follow-up for the discussion in Dublin PTG about how Neutron API server should handle invalid query parameter . According to the feedback, I sent this ML to seek advice from API-WG in this regards.
As a brief recap, we were discussing how Neutron API server should behave if invalid query parameters were inputted. Per my understanding, the general consensus is to make Neutron API server behave consistently with other OpenStack projects. The question for API-WG is if there is any guideline to clarify how OpenStack projects should handle invalid query parameters. Query parameters are various across different projects but it seems most projects support these four categories of query parameters: sorting, pagination, filtering, and fields selection. I saw API-WG provided a guideline to define how to handle valid parameters of these categories , but it doesn’t seem to define how to handle invalid parameters. I wonder if API-WG could clarify it. For example, if users provide an invalid filter on listing the resources, should the API server ignore the invalid filter and return a successful response? Or it should return an error response? Below is a list of specific scenarios and examples to consider: 1. Invalid sorting. For example: GET "/v2.0/networks?sort_dir=desc&sort_key=<invalid_field>" GET "/v2.0/networks?sort_dir=<invalid_sort_dir>&sort_key=xxx" 2. Invalid pagination. For example: GET "/v2.0/networks?limit=<invalid_limit>&marker=xxx" GET "/v2.0/networks?limit=1&marker=<invalid_marker>" 3. Invalid filter. For example: GET "/v2.0/networks?<invalid_field>=xxx" GET "/v2.0/networks?xxx=<invalid_value>" 4. Invalid field. For example: GET "/v2.0/networks?fields=<invalid_field>" Best regards, Hongbin  https://bugs.launchpad.net/neutron/+bug/1749820  https://specs.openstack.org/openstack/api-wg/guidelines/pagination_filter_sort.html ________________________________ 华为技术有限公司 Huawei Technologies Co., Ltd. [Company_logo] ________________________________ 本邮件及其附件含有华为公司的保密信息，仅限于发送给上面地址中列出的个人或群组。禁 止任何其他人以任何形式使用（包括但不限于全部或部分地泄露、复制、或散发）本邮件中 的信息。如果您错收了本邮件，请您立即电话或邮件通知发件人并删除本邮件！ This e-mail and its attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it!
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