Consistency Tokens

[aaguiarz]

Change the Write API so it returns a consistency token, that can be then specified when calling the query evaluation APIs (e.g. check/list objects/list users).

When the token is provided, OpenFGA will perform a consistent read if the data in the cache is staler than the revision encoded in consistency token.

[loeffel-io]

Hey @aaguiarz, what is the current status here? we dont need higher consistency, we do need guaranteed consistency.
Similar to https://authzed.com/docs/spicedb/concepts/consistency#zedtokens or https://google.aip.dev/154.
I am really surprised to not see this implemented in this kind of system

Thank you