how to retrieve authority fact

[miton18]

In my Biscuit, there is a fact I want to retrieve for audit purpose.

I did not see any method to get it ?

[Geal]

for this, you should create an authorizer from the token, then query from inside the authorizer. This is how it is done in other libraries as well. While for simple tokens this would look like it is fine, you would quickly end up in cases where the facts differ between querying from the token directly, or loading in an empty authorizer and running the engine