Felix Martini ha scritto:
Hi Manlio,
Have you looked at http://www.haskell.org/haskellwiki/WebApplicationInterface ?
If you remember, I posted a few messages in the thread where WAI was announced. There is a separate channel where we can discuss in detail? Or should I just use this thread?
If you did is there something in that proposal that you think should be changed or is not clear?
Here are the problems: 1) supported HTTP methods are fixed, since you use a custom data type 2) no support for other possible CGI variables (or simply custom variables: I use the environ dictionary to store application configuration, and I think it is a great thing). I think that we should simply have a dictionary Map ByteString ByteString 3) No support for optimized file serving, like with WSGI file_wrapper 4) No support for keeping "complex" state (like database connection) in the environ. I have read some examples with CGI package, where a custom monad transformer is used. I'm not sure if this solution is flexible and "scalable". 5) I can't find documentation about the type of the response. It is rather clear that it is (ByteString, [(ByteString, ByteString)], Enumerator) but this should be documented somewhere. There are also few typos: * Chapter 2: "A standardized interface is of no use of no..." should be "A standardized interface is of no use if no..." * Chapter 4.2 "However, if the the amount..." should be "However, if the amount..." As a last note: I have some doubts about the name, since gateway is not in it ;-). Regards Manlio Perillo