first commit

backend/account.py

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+# account details for export
+
+from oandapyV20 import API
+from oandapyV20.endpoints.accounts import AccountSummary
+from .config import accountID, token
+
+api = API(token)
+
+r = AccountSummary(accountID)
+summary = api.request(r) # base dict
+account = summary['account'] # item containing dict of account data
+
+account_summary = dict()
+
+balance = account['balance']
+open_trades = account['openTradeCount']
+open_positions = account['openPositionCount']
+pnl = account['pl']
+carrying_costs = account['financing']
+open_pnl = account['unrealizedPL']
+nav = account['NAV']
+margin_used = account['marginUsed']
+margin_available = account['marginAvailable']
+margin_call_pct = account['marginCallPercent']
+margin_rate = account['marginRate']

backend/config.py

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+# contains settings and common lists of assets to trade
+
+# basic account/environment details
+accountID = '101-011-4913967-001'
+token = '88899e549cd4edf80ddcf7e4f8a57f60-f7067b6e2e3c2ef5ba5de3116e7ae5e2'
+env = 'practice' # change this to 'live' when you're ready
+
+# major portfolios
+
+currencies = ['EUR_USD', 'GBP_USD', 'USD_JPY', 'AUD_USD', 'NZD_USD',
+              'USD_CHF', 'USD_CAD', 'XAU_USD', 'AUD_JPY', 'EUR_JPY',
+              'GBP_JPY']
+
+indicies = ['SPX500_USD', 'AU200_AUD', 'CN50_USD', 'EU50_EUR', 'FR40_EUR',
+            'DE30_EUR', 'HK33_HKD', 'IN50_USD', 'JP225_USD', 'NL25_EUR',
+            'SG30_SGD', 'TWIX_USD', 'UK100_GBP', 'US30_USD', 'NAS100_USD',
+            'US2000_USD']
+
+commodities = ['BCO_USD', 'XCU_USD', 'CORN_USD', 'NATGAS_USD', 'SOYBN_USD',
+               'SUGAR_USD', 'WTICO_USD', 'WHEAT_USD']

backend/indicators.py

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+# short list of trading indicators
+import numpy as np
+import pandas as pd
+from sklearn import ensemble, tree
+from sklearn.model_selection import train_test_split
+
+def sma(series, window):
+    mavg = series.rolling(window=window, min_periods=window).mean()
+    return mavg
+
+# exponential weighted moving average
+def ewma(series, span):
+    ema = pd.ewma(series, span=span)
+    return ema
+
+def pivotPoints(df):
+    n = len(df) - 1 # pivotPoints would be based on the last candle
+    pp = (df['High'] + df['Low'] + df['Close']) / 3
+    r1 = (2 * pp) - df['Low']
+    s1 = (2 * pp) - df['High']
+    r2 = (pp - s1) + r1
+    s2 = pp - (r1 - s1)
+    r3 = (pp - s2) + r2
+    s3 = pp - (r2 - s2)
+
+    pivots = {'PP': pp, 'R1': r1, 'R2': r2, 'R3': r3,
+                       'S1': s1, 'S2': s2, 'S3': s3}
+
+    return pivots
+
+# rate of change, applied directly to the dataframe
+def roc(df):
+    closes = df['Close'].apply(float)
+    df['ROC'] = closes.diff() * 100
+    df['ROC'].fillna(0)
+    return df
+
+# stochastic oscillator, applied directly to the dataframe
+def stoch(df, period_K, period_D, graph=False):
+    df['Low'] = pd.to_numeric(df['Low'], errors='coerce')
+    df['Lstoch'] = df['Low'].rolling(window=period_K).min()
+    df['High'] = pd.to_numeric(df['High'], errors='coerce')
+    df['Hstoch'] = df['High'].rolling(window=period_K).max()
+    df['Close'] = pd.to_numeric(df['Close'], errors='coerce')
+    df['%K'] = 100*((df['Close'] - df['Lstoch']) / (df['Hstoch'] - df['Lstoch']))
+    df['%D'] = df['%K'].rolling(window=period_D).mean()
+
+    if graph == True:
+        fig, axes = plt.subplots(nrows=2, ncols=1, figsize=(20,10))
+        df['Close'].plot(ax=axes[0])#, title='Close'
+        df[['K', 'D']].plot(ax=axes[1])#, title='Oscillator'
+        plt.show()
+
+    return df
+
+# bollinger bands, applied directly to the dataframe
+def bollBands(df, window, n_std, graph=False):
+    close = df['Close']
+    rolling_mean = close.rolling(window).mean()
+    rolling_std  = close.rolling(window).std()
+
+    df['rolling_mean']   = rolling_mean
+    df['boll_high'] = rolling_mean + (rolling_std * n_std)
+    df['boll_low']  = rolling_mean - (rolling_std * n_std)
+
+    if graph == True:
+        plt.plot(close)
+        plt.plot(df['Rolling Mean'])
+        plt.plot(df['Bollinger High'])
+        plt.plot(df['Bollinger Low'])
+        plt.show()
+
+    return df
+
+# AdaBoostRegressor with Decision Tree base, uses most of the standard df
+def AdaBoost(df):
+    # clean the data
+    n = len(df)
+    X = np.asarray(df[['Open','High','Low','Volume']][:n-1]) # add or subtract input data columns here
+    X = X.reshape(n-1, 4)                                    # adjust '4' to match the number of input columns used above
+    y = np.asarray(df[['Close']][1:])
+    # build and score the model
+    split = 0.8
+    X_train, X_test, y_train, y_test = train_test_split(X, y, train_size=split)
+    dtree = tree.DecisionTreeRegressor(max_depth=1000)
+    model = ensemble.AdaBoostRegressor(n_estimators=5000, learning_rate=2.0, base_estimator=dtree)
+    model.fit(X_train, y_train)
+    score = model.score(X_test, y_test)
+    #print("Model1 accuracy: ", score)
+    # make a prediction
+    prediction = model.predict(df[['Open','High','Low','Volume']][n-1:])
+    #print("AdaBoost predicted close for next candle: ", prediction)
+    return prediction
+
+# RandomForestRegressor with Decision Tree base, uses most of the standard df
+def RandomForest(df):
+    # clean the data
+    n = len(df)
+    X = np.asarray(df[['Open','High','Low','Volume']][:n-1]) # add or subtract input data columns here
+    X = X.reshape(n-1, 4)                                    # adjust '4' to match the number of input columns used above
+    y = np.asarray(df[['Close']][1:])
+    # build and score the model
+    split = 0.8
+    X_train, X_test, y_train, y_test = train_test_split(X, y, train_size=split)
+    model = ensemble.RandomForestRegressor(n_estimators=10000, max_depth=1000)
+    model.fit(X_train, y_train)
+    score = model.score(X_test, y_test)
+    #print("Model2 accuracy: ", score)
+    # make a prediction
+    prediction = model.predict(df[['Open','High','Low','Volume']][n-1:])
+    #print("RandomForest predicted close for next candle: ", prediction)
+    return prediction

backend/orders.py

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+# class to support opening and closing trades
+import json
+from .config import accountID, token
+from oandapyV20 import API
+import oandapyV20.endpoints.trades as trades
+import oandapyV20.endpoints.orders as orders
+from oandapyV20.contrib.requests import TradeCloseRequest
+from oandapyV20.exceptions import V20Error
+from .account import margin_available, margin_rate
+from oandapyV20.contrib.requests import (MarketOrderRequest,
+                                         TakeProfitDetails,
+                                         StopLossDetails,
+                                         TrailingStopLossOrderRequest)
+
+api = API(token)
+
+def weight(price, allocation):
+    trade_margin = float(margin_available) * allocation
+    trade_value = trade_margin / float(margin_rate)
+    w = round((trade_value/float(price)), 0)
+    return w
+
+def order(instrument, weight, price, TP, SL):
+
+    if weight > 0:
+        mktOrder = MarketOrderRequest(
+                        instrument=instrument,
+                        units=weight,
+                        takeProfitOnFill=TakeProfitDetails(price=TP).data,
+                        stopLossOnFill=StopLossDetails(price=SL).data)
+        r = orders.OrderCreate(accountID, data=mktOrder.data)
+
+        try:
+            rv = api.request(r)
+            #print(r.status_code)
+        except V20Error as e:
+            print(r.status_code, e)
+        else:
+            #print(json.dumps(rv, indent=4))
+            pass
+
+    else:
+        mktOrder = MarketOrderRequest(
+                            instrument=instrument,
+                            units=weight,
+                            takeProfitOnFill=TakeProfitDetails(price=TP).data,
+                            stopLossOnFill=StopLossDetails(price=SL).data)
+        r = orders.OrderCreate(accountID, data=mktOrder.data)
+
+        try:
+            rv = api.request(r)
+            #print(r.status_code)
+        except V20Error as e:
+            print(r.status_code, e)
+        else:
+            #print(json.dumps(rv, indent=4))
+            pass
+
+    return r.response
+
+def trailingStop(tradeID, distance=0.1):
+    activeStop = TrailingStopLossOrderRequest(tradeID=tradeID,
+                    r = orders.OrderCreate(accountID,
+                    data=activeStop.data))
+    api.request(r)
+    return r.response
+
+def close(tradeID):
+    close_trade = TradeCloseRequest()
+    r = trades.TradeClose(accountID, tradeID, data=close_trade.data)
+    api.request(r)
+    return r.response
+
+def closeAll(tradeID_list):
+    for trade in tradeID_list:
+        close(trade)
+        print(trade, "Closed")

backend/pricing.py

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+# price history or stream functions
+
+from .config import token, accountID, env
+from oandapyV20 import API
+from oandapyV20.endpoints.instruments import InstrumentsCandles
+from oandapyV20.endpoints.pricing import PricingStream
+import pandas as pd
+import time
+
+api = API(token)
+
+# returns the last 500 OHLCV candles for an instrument
+# maximum count is 500
+# window: M1, M5, M15, H, H4, D, etc.
+def history(instrument, window, collection=False):
+    instrument = instrument
+    data = list()
+    client = API(token)
+    params = {"count": 500, "granularity": window}
+    r = InstrumentsCandles(instrument, params)
+    client.request(r)
+    resp = r.response
+    for candle in resp.get('candles'):
+        dt     = candle['time']
+        Open   = candle['mid']['o']
+        High   = candle['mid']['h']
+        Low    = candle['mid']['l']
+        Close  = candle['mid']['c']
+        Volume = candle['volume']
+        update = [dt, Open, High, Low, Close, Volume]
+        data.append(update)
+    df = pd.DataFrame(data, columns=['dt','Open','High','Low','Close','Volume'])
+    # collect data, useful for research and weekends/holidays when the market isn't open
+    if collection == True:
+        title = 'data/%s_%s_history.csv' % (instrument, window)
+        df.to_csv(title)
+
+    return df
+
+# creates a pricing stream,
+def stream(instrument, window):
+    request_params = {"timeout":100}
+    params = {"instruments":instrument, "granularity":window}
+    api = API(access_token=token,environment=env, request_params=request_params)
+    r = PricingStream(accountID=accountID, params=params)
+
+    while True:
+        try:
+            api.request(r)
+            for R in r.response:
+                time = R['time']
+                ask = R['asks'][0]['price']
+                bid = R['bids'][0]['price']
+                return time, ask, bid
+        except Exception as e:
+            print(e)
+            continue