diff --git a/requirements.txt b/requirements.txt
index 97bdf730..a22cf5c1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,4 +9,5 @@ future
 flask-socketio
 flask-restful
 flask-cors
-gevent-websocket
\ No newline at end of file
+gevent-websocket
+pyjwt
\ No newline at end of file
diff --git a/vnpy/trader/app/algoTrading/algoTemplate.py b/vnpy/trader/app/algoTrading/algoTemplate.py
index 92c2a9f4..ba044ec3 100644
--- a/vnpy/trader/app/algoTrading/algoTemplate.py
+++ b/vnpy/trader/app/algoTrading/algoTemplate.py
@@ -147,6 +147,11 @@ class AlgoTemplate(object):
     def getTick(self, vtSymbol):
         """"""
         return self.engine.getTick(self, vtSymbol) 
+   
+    #----------------------------------------------------------------------
+    def getContract(self, vtSymbol):
+        """"""
+        return self.engine.getContract(self, vtSymbol)    
         
     #----------------------------------------------------------------------
     def roundValue(self, value, change):
diff --git a/vnpy/trader/language/chinese/constant.py b/vnpy/trader/language/chinese/constant.py
index 3bd294bc..37417925 100644
--- a/vnpy/trader/language/chinese/constant.py
+++ b/vnpy/trader/language/chinese/constant.py
@@ -86,15 +86,13 @@ EXCHANGE_FXCM = 'FXCM'         # FXCM外汇做市商
 EXCHANGE_OKCOIN = 'OKCOIN'       # OKCOIN比特币交易所
 EXCHANGE_HUOBI = 'HUOBI'         # 火币比特币交易所
 EXCHANGE_LBANK = 'LBANK'         # LBANK比特币交易所
-EXCHANGE_KORBIT = 'KORBIT'	 # KORBIT韩国交易所
 EXCHANGE_ZB = 'ZB'		 # 比特币中国比特币交易所
 EXCHANGE_OKEX = 'OKEX'		 # OKEX比特币交易所
-EXCHANGE_ZAIF = "ZAIF"		 # ZAIF日本比特币交易所
-EXCHANGE_COINCHECK = "COINCHECK" # COINCHECK日本比特币交易所
 EXCHANGE_BINANCE = "BINANCE"     # 币安比特币交易所
 EXCHANGE_BITFINEX = "BITFINEX"   # Bitfinex比特币交易所
 EXCHANGE_BITMEX = 'BITMEX'       # BitMEX比特币交易所
 EXCHANGE_FCOIN = 'FCOIN'         # FCoin比特币交易所
+EXCHANGE_BIGONE = 'BIGONE'       # BigOne比特币交易所
 
 # 货币类型
 CURRENCY_USD = 'USD'            # 美元
diff --git a/vnpy/trader/language/english/constant.py b/vnpy/trader/language/english/constant.py
index 852cfc56..fe4d046f 100644
--- a/vnpy/trader/language/english/constant.py
+++ b/vnpy/trader/language/english/constant.py
@@ -82,15 +82,13 @@ EXCHANGE_FXCM = 'FXCM'         # FXCM外汇做市商
 EXCHANGE_OKCOIN = 'OKCOIN'       # OKCOIN比特币交易所
 EXCHANGE_HUOBI = 'HUOBI'         # 火币比特币交易所
 EXCHANGE_LBANK = 'LBANK'         # LBANK比特币交易所
-EXCHANGE_KORBIT = 'KORBIT'	 # KORBIT韩国交易所
 EXCHANGE_ZB = 'ZB'		 # 比特币中国比特币交易所
 EXCHANGE_OKEX = 'OKEX'		 # OKEX比特币交易所
-EXCHANGE_ZAIF = "ZAIF"		 # ZAIF日本比特币交易所
-EXCHANGE_COINCHECK = "COINCHECK" # COINCHECK日本比特币交易所
 EXCHANGE_BINANCE = "BINANCE"     # 币安比特币交易所
 EXCHANGE_BITFINEX = "BITFINEX"   # Bitfinex比特币交易所
 EXCHANGE_BITMEX = 'BITMEX'       # BitMEX比特币交易所
 EXCHANGE_FCOIN = 'FCOIN'         # FCoin比特币交易所
+EXCHANGE_BIGONE = 'BIGONE'       # BigOne比特币交易所
 
 # 货币类型
 CURRENCY_USD = 'USD'            # 美元