Are you looking for something like this: https://github.com/twittner/swagger? Basicallly, a DSL to generate the API specification? The added benefit is that it's compatible with WAI which helps when/if you want to serve the specification. I've used the interactive documentation and swagger-codegen to generate several clients in other languages (python, ruby). I'm quite happy with the results. -Christopher On Fri, Mar 20, 2015 at 7:06 AM, Ignas Vyšniauskas wrote:

Hi cafe,

Does anyone know of any libraries that allow one to describe data / interfaces (think IDLs), with emphasis on good support for modules, strong typing and extensibility?

I am thinking in the lines of Thrift[1], Piqi[2], Swagger[3], but with the core data specification language as decoupled as possible from any kind of implementation related things (such as actual representation of data, or RPC / RESTful bindings).

haskell-servant[4] and silk-rest[5] are kind of relevant, but they are very much oriented towards RESTful APIs.

Sorry if this is slightly off-topic, but I couldn't think anywhere else to inquire about this.

Thanks, Ignas

[1]: https://thrift.apache.org/ [2]: http://piqi.org/ [3]: http://swagger.io/ [4]: http://haskell-servant.github.io/ [5]: http://silkapp.github.io/rest/ _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe