[Haskell-cafe] Adding Authentication and Authorization to a service implemented in Haskell

[Daryoush Mehrtash]

I am trying to figure out a clean way to add authentication and
authorization in a webservice.   The services of the web services are
implemented as Haskell functions.  The request to the service contains the
user authentication information.   I want to authenticate the user by
verifying his authentication informaton, assign him roles, and then based on
the roles decide on the functions and data that he can have access too.   Is
there a clean way to do this in Haskell?


Thanks

Daryoush
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