adutra commented on PR #952:
URL: https://github.com/apache/polaris/pull/952#issuecomment-2640684613
> The only way for someone to submit a token for exchange is via the
client_secret parameter :(
Yes, and this is a common trick among catalog implementors :-) – That said,
you don't need to support client secret only for this; you can configure the
client to send a fixed client id, something like `credential=polaris:${token}`.
I don't mind going down the route of supporting client secrets without ids,
but let's keep in mind that we are getting closer to having the AuthManager API
merged into Iceberg core. What would become possible then is to provide an
alternate AuthManager that knows how to do initial token exchanges properly,
e.g. to support impersonation and delegation scenarios.
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