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Monthly Downloads: 9
Programming language: Haskell
License: BSD 3-clause "New" or "Revised" License
Tags: Web     Bitcoin     Finance    
Latest version: v0.6.0.0

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README

Build Status Hackage BSD3

(Hopefully useful) Haskell bindings to the Luno (formerly BitX) cryptocurrency exchange's API.

As a minimal example, to get the current selling price (in South African Rand) of Bitcoin on the Luno exchange, do the following:

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 ++ ".")
    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, text, http-client, lens (or any lens-compatible package, such as 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. Your best bet might be to just use Stack.


*Note that all licence references and agreements mentioned in the bitx-bitcoin README section above are relevant to that project's source code only.