from fhub import Session
hub = Session("your_finnhub_api_key_here")

# Download prices time serie of Tesla.
tsla = hub.candle('TSLA')

# Download prices for several tickers from a date.
data = hub.candle(['AMZN', 'NFLX', 'DIS'], start="2018-01-01")

# Download prices and bollinger bands indicator for several tickers.
data = hub.indicator(['AAPL', 'MSFT'], start='2019-01-01', indicator='bbands',
                 indicator_fields={'timeperiod': 10})

from fhub import Subscription
from time import sleep

def price_monitor(ticker):
    # Callback function receive a ticker object
    # calculate the average of the last 30 ticks using the ticker history
    average = ticker.history.price.tail(30).mean().round(2)
    # display the price and the calculated average
    print (f'{ticker.symbol}. Price: {ticker.price} Average(30) : {average}')
    # show a message if price is over its average
    if ticker.price > average:
        print(f'{ticker.symbol} is over its average price')
    return

# Create a subscription and connect
subs = Subscription("your_finnhub_api_key_here")
# A list of the symbols to which to subscribe is passed
# Created function  is assigned as a callback when a new tick is received
subs.connect(["BINANCE:BTCUSDT", "IC MARKETS:1", "AAPL"],
             on_tick=price_monitor
            )

# Subscription is maintained for 20 seconds and then closed.
for f in range(20):
    sleep(1)
subs.close()