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|Original author(s)||Alex Jacobson|
7.0 / March 29, 2012
|Operating system||Portable (requires GHC and libraries)|
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.
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.") among others.
Relation to HAppS[edit | edit source]
Happstack is the continuation of the HAppS project. 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 | edit source]
Others articles of the Topic Free software : Free and open-source software, Buildix, Android (operating system), DownThemAll!, Backdrop CMS, Ultrix Window Manager, GBDE
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References[edit | edit source]
[edit | edit source]
- Happstack Maintained, current version
- HAppS homepage
- Author of HAppS Alex Jacobson presenting HAppS to the Bay Area Functional Programmers group (video & slides)
- Haskell Application Server - HAppS
- "Case Study: Using Haskell and HAppS for Openomy API v2.0"
- Self-Demoing Cabal Installable HAppS Tutorial
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