client3.py

################################################################################
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import json
import random
import urllib.request

# Server API URLs
QUERY = "http://localhost:8080/query?id={}"

# 500 server request
N = 500


def getDataPoint(quote):
    stock = quote['stock']
    bid_price = float(quote['top_bid']['price'])
    ask_price = float(quote['top_ask']['price'])
    price = (bid_price+ask_price)/2 #Price formula changed. function updated.
    return stock, bid_price, ask_price, price


def getRatio(price_a, price_b):
   if price_b == 0:
    return
   return price_a / price_b # Ratio formula updated. 


# Main
if __name__ == "__main__":
    # Query the price once every N seconds.
    for _ in iter(range(N)):
        quotes = json.loads(urllib.request.urlopen(QUERY.format(random.random())).read())

        """ ----------- Update to get the ratio --------------- """
        for quote in quotes:
            stock, bid_price, ask_price, price = getDataPoint(quote)
            print("Quoted %s at (bid:%s, ask:%s, price:%s)" % (stock, bid_price, ask_price, price))

        print("Ratio %s" % getRatio(price['ABC'], price['DEF'])) #updated!