Baoyuantop commented on issue #12939:
URL: https://github.com/apache/apisix/issues/12939#issuecomment-3798082211
This is a design limitation, not a bug. Only standard PATCH supports
deleting attributes using null. The purpose of SubPath PATCH is to “fully
update the data of that attribute,” not to delete the attribute. To remove the
hosts attribute from a route, you should use standard PATCH:
```
curl --request PATCH \
--url http://127.0.0.1:9180/apisix/admin/routes/3d8eb989 \
--header 'X-API-KEY: xxx' \
--header 'Content-Type: application/json' \
--data '{"hosts": null}'
```
Additionally, I noticed inconsistencies in the descriptions of the patch
method at these two locations, which appear to require updating the English
documentation. cc @kayx23
https://apisix.apache.org/zh/docs/apisix/admin-api/#route-request-methods
https://apisix.apache.org/docs/apisix/admin-api/#request-methods
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