This package is not currently in any snapshots. If you're interested in using it, we recommend adding it to Stackage Nightly. Doing so will make builds more reliable, and allow stackage.org to host generated Haddocks.
The concept of this web transaction framework is influenced by sessions, transactions and software transactional memory.
To web-developers it offers sessions with integrated transaction management that has an included server-side storage of key-value pairs. The transactions can be spanned over multiple web requests and only affect the database when a commit is instructed.
Additionally, the sessions have access to the (not yet committed) key-value pairs and the status (e.g., the last requested page) of all other sessions that are active. As sessions have to be canceled after a given timeout, the framework has a garbage collector that safely cleans up the timed out sessions. The framework introduces a monad which encapsulates all the logic of the transactions and frees them of side effects. This is a concept known from the STM--monad and like in STM, the transactions cannot dead-lock each other.
