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Happstack

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Happstack
Original author(s)Alex Jacobson
Stable release
7.0 / March 29, 2012 (2012-03-29)
Engine
    Operating systemPortable (requires GHC and libraries)
    PlatformPortable
    Available inHaskell
    TypeApplication server
    LicenseBSD-3
    Websitehttp://www.happstack.com/

    Amazon.com Logo.png Search Happstack on Amazon.

    Happstack (Haskell Application Stack) is a free application server for websites written in the functional programming language Haskell. It integrates handling Web, persistence, XML/XSLT, and templating functionality.[1]

    It makes use of a number of Haskell libraries and systems such as Parsec, Cabal, Template Haskell, and monad transformers ("Your app then is just a set of state transformer functions (in the MACID Monad) that take an event and state as input and that evaluate to a new state, a response, and a (possibly null) set of sideeffects."[1]) among others.

    Relation to HAppS[edit]

    Happstack is the continuation of the HAppS project.[2] The project name was changed to highlight the transition to a more open development model and a change in project leadership. The transition was made with the blessing of Alex Jacobson, and the HAppS developers are still involved in the coding.

    See also[edit]


    Other articles of the topic Free software : GNU-Darwin, Beiwe Research Platform, wmii, OpenRiichi, monsta FTP, ArkhamJS, PeerCast
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    • Staged event-driven architecture (SEDA)
    • Prevayler
    • Twisted

    References[edit]

    1. 1.0 1.1 "4.10.1 HAppS – Haskell Application Server"
    2. Happstack FAQ Archived February 28, 2009, at the Wayback Machine

    External links[edit]


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