Server side web scripting in Haskell
- 1 January 2000
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of Functional Programming
- Vol. 10 (1) , 1-18
- https://doi.org/10.1017/s0956796899003561
Abstract
The Common Gateway Interface (CGI) for generating dynamic documents on web servers imposes much accidental complexity on the programmer. The Haskell/CGI library documented in this paper hides all this unpleasantness by using the common sense ‘design pattern’ of separating model and presentation. Low-level query string requests are represented by association lists, and primitive HTTP responses are easily constructed using a set of HTML generating combinators. The CGI programmer only needs to write a worker function that maps an abstract request into an abstract response. A (higher-order) wrapper function then transmutes the worker into a real low-level CGI script that deals with the exact format of concrete requests and responses as required by the CGI standard.Keywords
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