sungwy commented on code in PR #18080:
URL: https://github.com/apache/iceberg/pull/18080#discussion_r4382122793
##########
open-api/rest-catalog-open-api.yaml:
##########
@@ -1410,12 +1400,34 @@ paths:
- $ref: '#/components/parameters/prefix'
- $ref: '#/components/parameters/namespace'
- $ref: '#/components/parameters/table'
+ - $ref: '#/components/parameters/data-access'
post:
tags:
- Catalog API
summary: Remotely signs requests to object storage
operationId: signRequest
+ description: >
+ Signs a request to object storage on the client's behalf.
+
+
+ `RemoteSignResult` reports the mechanism that produced the signature in
+ `signing-mechanism`. With `remote-signing`, `headers` carries the
signature. With
+ `remote-presigning`, `uri` carries the signature.
+
+
+ On this operation `X-Iceberg-Access-Delegation` lists the access
delegation mechanisms
+ the client supports for this request: `remote-signing`,
`remote-presigning`, or both.
+ Other values, such as `vended-credentials`, are not supported on this
operation and do
+ not count as listed mechanisms. The server SHOULD answer with one of
the listed
+ mechanisms, and chooses when both are listed. The server SHOULD
respond with 406, rather
+ than answer with another mechanism, when the header lists no mechanism
the server
+ implements. For example, `vended-credentials` lists no mechanism, and
+ `vended-credentials,remote-signing` lists only `remote-signing`.
Review Comment:
@danielcweeks - This section of the description illustrates how the protocol
handles invalid mechanisms like `vended-credentials` when it is included in
`X-Iceberg-Access-Delegation` on this specific `operationId`.
I understand your point regarding the execution of pre-signed url and
remote-signed-url, but how is that relevant here? Just want to make sure I
didn't miss your point
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