An HTTP client
An HTTP client library for Haskell using the Snap Framework’s
io-streams library to handle
the streaming IO.
A common case in writing RESTful web services is needing to make onward calls
to further servers. This package is intended to make this easy to do.
Though originally written for making calls from wep apps written with
Snap, you can use this from any library or framework.
Enjoy!
Example
The underlying API is very simple:
main :: IO ()
main = do
c <- openConnection "www.example.com" 80
let q = buildRequest1 $ do
http GET "/"
setAccept "text/html"
sendRequest c q emptyBody
receiveResponse c (\p i -> do
putStr $ show p
x <- Streams.read i
S.putStr $ fromMaybe "" x)
closeConnection c
There are also convenience functions for the common case of making
straight-forward GET and POST requests; for instance:
get "http://www.example.com/" (\_ i -> Streams.connect i stdout)
will {ahem} stream the response body to stdout. Perhaps more
interesting (though less streams-oriented), is simply getting the
response as a ByteString using one of the pre-defined handlers:
x' <- get "https://secure.example.com/" concatHandler
See the documentation in
Network.Http.Client
for further examples and details of usage of the API. There’s also a blog
post
introducing the library with a discussion of the design and usage.
Change Log
Now included in separate file CHANGELOG.
AfC
