haskell-kraken-exchange-api

Haskell bindings to the Kraken API.

Early stage work in progress.

To do

• Return types for all services
  • Time
  • Assets
  • AssetPairs
  • Ticker
  • OHLC
  • Depth
  • Trades
  • Spread
  • Balance
  • TradeBalance
  • OpenOrders
  • ClosedOrders
  • QueryOrders
  • TradeHistory
  • QueryTrades
  • OpenPosition
  • Ledgers
  • QueryLedgers
  • TradeVolume
  • AddOrder
  • CancelOrder
• Add 'options' to field names for Options data types
• Add underscore prefix to field names (for lens derivation)
• Resolve duplication in private user data functions (first attempt failed due to difficulty in factoring out Proxy's)
• Extract common functionality in JSON parsers
• Env vars for api keys: handle read failure, maybe use an env var library (e.g. envy), make optional (for public services)
• Enforce non-empty lists for relevant requests (e.g. query trades?)
• Prefix enums with enum name
• Untyped requests
• Restrict OHLC bar intervals
• Handle 'since' / 'last' - JSON can be number or string
• Add tests
• Add benchmarks
• Develop kraken executable into a full command-line tool
• Logging
• Newtypes for amounts, etc.
• Documentation
• Items marked with a 'TBC' comment in code
• Test optional PositionInfo on TradeHistory
• TxnId -> RefId

Attribution

This package is based on a package initially developed by Chris Mahon, we took over this library in December 2019, when he was so kind to change it's license to MIT.