[](https://travis-ci.org/tebello-thejane/bitx-haskell)
[](https://hackage.haskell.org/package/bitx-bitcoin)
[](http://opensource.org/licenses/BSD-3-Clause)
(Hopefully useful) Haskell bindings to the [BitX](https://bitx.co/) bitcoin exchange's [API](https://bitx.co/api).
As a minimal example, to get the current selling price (in South African Rand) of bitcoin on the
BitX exchange, do the following:
```haskell
import Control.Lens ((^.))
import Network.Bitcoin.BitX (BitXAPIResponse(..), getTicker, CcyPair(..))
import qualified Network.Bitcoin.BitX as BitX
import Data.Text (unpack)
import Network.HTTP.Types.Status (Status(..))
import Network.HTTP.Client (responseStatus)
main :: IO ()
main = do
bitXResponse <- getTicker XBTZAR
case bitXResponse of
ValidResponse tic ->
case tic ^. BitX.ask of
Nothing -> putStrLn "The BTC-ZAR exchange not currently have an ask price..."
Just p -> putStrLn ("1 bitcoin will set you back ZAR" ++ show p ++ ".00.")
ErrorResponse err ->
error $ "BitX error received: \"" ++ unpack (err ^. BitX.error) ++ "\""
ExceptionResponse ex ->
error $ "Exception was thrown: \"" ++ show ex ++ "\""
UnparseableResponse _ resp ->
error $ "Bad HTTP response; HTTP status code was: \"" ++ (show . statusCode . responseStatus $ resp) ++ "\""
```
Note that the code snippet above depends on [http-types](https://hackage.haskell.org/package/http-types),
[text](https://hackage.haskell.org/package/text), [http-client](https://hackage.haskell.org/package/http-client),
[lens](https://hackage.haskell.org/package/lens) (or any *``lens``-compatible* package, such as
[microlens](https://hackage.haskell.org/package/microlens)), and finally **bitx-bitcoin**.
This library is known to work on Windows, but if you wish to use it then you will have to do a bit
more work due to the ``Network`` library not building on Windows out of the box. See
[this blog post by Neil Mitchell](http://neilmitchell.blogspot.com/2010/12/installing-haskell-network-library-on.html).