Snap (web framework)
{{Short description|Web development framework in Haskell}}
{{Infobox software
| name = Snap
| logo = Snap Web Framework logo.png
| screenshot =
| caption =
| author = Gregory Collins, Doug Beardsley{{cite web |url=http://snapframework.com/about |title=Snap: A Haskell Web Framework: About |author=Snap Framework Team |website=Snap Framework.com}}
| developer = [http://snapframework.com/about Snap Team]
| released = {{Start date and age|2010|05}}
| latest release version = 1.1.3.2{{cite web |url=https://github.com/snapframework/snap/tags |title=snapframework/snap |author= |website=GitHub.com}}
| latest release date = {{Start date and age|2023|07|19}}
| operating system = Cross-platform: Unix, Unix-like, macOS; Windows NT
| language = English
| repo = {{URL|https://github.com/snapframework}}
| programming language = Haskell
| genre = Web framework
| license = BSD
| website = {{URL|snapframework.com}}
}}
Snap is a web framework for developing web applications written in the functional programming language Haskell.{{cite journal
| last1=Collins
| first1=Gregory
| last2=Beardsley
| first2=Doug
| date=January–February 2011
| title=The Snap Framework: A Web Toolkit for Haskell
| url =http://steve.vinoski.net/pdf/IC-Snap_Framework.pdf
| journal=IEEE Internet Computing
| volume=15
| issue=1
| pages=84–87
| doi =10.1109/mic.2011.21
Overview
The Snap framework consists of the following:
- snap-core,{{cite web |url=http://hackage.haskell.org/package/snap-core |title=snap-core |website=Hackage.org}} a generic Haskell web server API.
- snap-server,{{cite web |url=http://hackage.haskell.org/package/snap-server |title=snap-server |website=Hackage.org}} a fast{{cite web |url=http://snapframework.com/blog/2010/11/17/snap-0.3-benchmarks |title=Snap 0.3 benchmarks with GHC 7.0.1 |website=Snap Framework.com |access-date=2014-03-02}} HTTP server that implements the snap-core interface.
- Heist,{{cite web |url=http://snapframework.com/docs/tutorials/heist |title=Snap: A Haskell Web Framework: Heist Tutorial |author=Snap Framework Team |website=Snap Framework.com}} an HTML-based templating system for generating pages that allows you to bind Haskell functionality to HTML tags for a clean separation of view and backend code, much like Lift's snippets. Heist is self-contained and can be used independently.
- Snaplets,{{cite web |url=http://snapframework.com/snaplets |title=Snap: A Haskell Web Framework: Snaplet Directory |author=Snap Framework Team |website=Snap Framework.com}} a high-level system for building modular web applications.
- Built-in snaplets for templating, session management, and authentication.
- Third party snaplets for features including file uploads, database connectivity (PostgreSQL, MongoDB, etc.), generation of JavaScript from Haskell code, and more.
- The Snap monad for stateful access to HTTP requests and responses.{{cite web |url=http://hackage.haskell.org/package/snap-core-0.9.6.0/docs/Snap-Core.html#t:Snap |title=Snap.Core |website=Hackage.org}}
Snap runs on both Windows NT and Unix-like platforms. Snap uses the [http://okmij.org/ftp/Streams.html#iteratee Iteratee] input/output (I/O) model,{{cite web |url=http://www.computer.org/portal/web/computingnow/content?g=53319&type=article&urlTitle=gregory-collins-on-high-performance-web-apps-with-snap-and-haskell |title=InfoQ Interview: Gregory Collins on High Performance Web Apps with Snap and Haskell|date=Sep 12, 2011}} As of version 1.0, its I/O is implemented with [http://snapframework.com/blog/2013/03/05/announcing-io-streams io-streams].
Usage
Snap is used by Silk,{{cite web |url=https://www.fpcomplete.com/wp-content/uploads/2013/05/Silk%20case%20study.pdf |title=FP Complete Case Study – Silk – Structured Content Management |website=FP Complete |access-date=2014-03-02}} JanRain,{{cite web |url=https://www.fpcomplete.com/wp-content/uploads/2013/05/janrain%20case%20study.pdf |title=FP Complete Case Study – JanRain – User Management System |website=FP Complete |access-date=2014-03-02}}{{cite web |url=http://janrain.com/blog/tutorial-building-a-sample-application-with-haskell-snap-postgresql-and-the-postgresql-simple-snaplet/ |title=Blog tutorial on Snap and PostgreSQL |website=JanRain |access-date=2014-03-02}} Racemetric,{{cite web |url=http://blog.hoersten.co/post/76773146365/haskell-snap-app-in-production |title=Haskell Snap App in Production |last1=Hoersten |first1=Luke |access-date=2014-03-02}} Lee Paste's Financial Blog,{{cite web |url=http://www.lpaste.net/ |title=Lee Paste |website=Lee Paste's Financial Blog}}{{cite web |url=https://github.com/chrisdone/lpaste/blob/master/hpaste.cabal#L102 |title=lpaste source code |last1=Done |first1=Chris |website=GitHub |access-date=2014-03-02}} SooStone Inc, and Group Commerce. Snap is also used as a lightweight, standalone Haskell server. The static site generator Hakyll uses Snap for its preview mode.{{cite web |last1=Van der Jeugt |first1=Jasper |date= |url=http://jaspervdj.be/hakyll/ |title=Hakyll |website=JasperVdJ.be |access-date=2024-11-09}}
Other Haskell web frameworks
- Yesod (web framework)
- Servant (web framework)
- Scotty{{cite web |url=http://hackage.haskell.org/package/scotty |title=scotty: Haskell web framework inspired by Ruby's Sinatra, using WAI and Warp |website=Hackage.org}}
- Spock{{cite web |url=http://hackage.haskell.org/package/Spock |title=Spock: Another Haskell web framework for rapid development |website=Hackage.org}}
- MFlow{{cite web |url=http://hackage.haskell.org/package/MFlow |title=MFlow: stateful, RESTful web framework |website=Hackage.org}}
- Miso{{cite web |url=http://hackage.haskell.org/package/miso |title=miso: A tasty Haskell front-end framework |website=Hackage.org}}
References
{{Reflist}}
External links
- {{Official website|snapframework.com}}
- {{GitHub|github.com/snapframework|Snap Framework}}
{{Web frameworks}}
{{Haskell programming}}