What is Haste?
Haste is a dialect of the Haskell programming language geared towards web applications. Haste supports the full Haskell language, including most GHC extensions but comes with a different set of standard libraries, implementing native support for modern web technologies such as WebSockets, LocalStorage, Canvas and others. In addition, Haste comes prepackaged with facilities for cooperative multitasking, working with binary data and other niceties.
Haste is free software under the three-clause BSD license. If your favorite feature is not yet implemented, why not submit a patch? You might also want to join the Haste mailing list or our IRC channel #haskell-haste @ Freenode.
The documentation for Haste is currently a bit lacking, in particular with regards to tutorials and similar introductory texts. If you feel like contributing a tutorial or some other documentation, we'd be happy to link to it here!
- API documentation on Hackage
- README on GitHub
- Usage examples
- Haste MSc thesis, an overview of the general idea of Haste. The implementation has changed quite a bit since it was published, however.
- A seamless, client-centric programming model for type safe web applications, Haste.App paper accepted for publication at Haskell Symposium '14.
Currently, the easiest way to get Haste is to install it from Hackage. Make sure you have a recent version of the Haskell Platform installed, then run the following in a terminal:
$ cabal update $ cabal install haste-compiler $ haste-boot
If you get an error about haste-boot not being found, you will need to add ~/.cabal/bin to your $PATH. If you are unsure about how to do this, please consult your OS documentation Google.
Another possibility is to build Haste from GitHub. This requires you to have the Haskell Platform installed, as well as Git.
$ git clone https://github.com/valderman/haste-compiler.git $ cd haste-compiler $ cabal install $ haste-boot --local
In addition to the above methods, we also provide pre-booted binary packages of Haste 0.4.2 for some platforms. These packages are experimental and any bug reports against them are greatly appreciated. These packages require a GHC binary of the version corresponding to the package visible on your $PATH. Get the latest Haskell Platform and the 7.8 package for your system and you're good to go.
If you are curious, you can try Haste right here in your browser, without needing to install anything at all. Just type in your program and hit the Try it! button. Of course, there are limits to what can be done in this mode. In particular, the client-server features of Haste.App will not work.
Note also that this service is quite experimental, and some users have reported issues when on a poor connection. If you run into this issue, any information at all pertaining to your problem would be quite appreciated.
We seem to be having trouble connecting to the server; Haste Live is thus currently unavailable. :(
There are as many ways of getting involved with Haste as there are people using it. Here are a few suggestions for those who want to help out a bit more. In addition, we're currently in need of maintainers for the Windows and OSX platforms.
- Submit a patch! Annoyed about your favorite feature still not being implemented? Grab the source, implement it yourself and submit a pull request!
- Report a bug! Even if you don't feel up to hacking the compiler yourself, please do report any bugs you find, and perhaps even request features you'd like to see.
- Join the mailing list! If you are having trouble with the crappy minimalist documentation or you want to discuss implementation details, the mailing list is the place to go.
- Pop into our IRC channel, #haskell-haste @ Freenode - it's like the mailing list, but faster!
- Write a tutorial! Documentation is the hardest part of development - contributions in this area are at least as important as patches for the code generator.