Initial implementation of interface function for getting exchange history.

exchanges/itbit/itbit_wrapper.go

@@ -1,6 +1,7 @@
 package itbit
 
 import (
+	"errors"
 	"log"
 	"strconv"
 
@@ -107,3 +108,10 @@ func (i *ItBit) GetExchangeAccountInfo() (exchange.AccountInfo, error) {
 	response.ExchangeName = i.GetName()
 	return response, nil
 }
+
+// GetExchangeHistory returns historic trade data since exchange opening.
+func (i *ItBit) GetExchangeHistory(p pair.CurrencyPair, assetType string) ([]exchange.TradeHistory, error) {
+	var resp []exchange.TradeHistory
+
+	return resp, errors.New("trade history not yet implemented")
+}