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client3.py
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client3.py
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################################################################################
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
import json
import random
import urllib.request
# Server API URLs
QUERY = "http://localhost:8080/query?id={}"
# 500 server request
N = 500
def getDataPoint(quote):
""" Produce all the needed values to generate a datapoint """
""" ------------- Update this function ------------- """
stock = quote['stock']
bid_price = float(quote['top_bid']['price'])
ask_price = float(quote['top_ask']['price'])
price = (bid_price + ask_price)/2
return stock, bid_price, ask_price, price
def getRatio(price_a, price_b):
""" Get ratio of price_a and price_b """
""" ------------- Update this function ------------- """
return price_a/price_b
# 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 --------------- """
prices = {}
for quote in quotes:
stock, bid_price, ask_price, price = getDataPoint(quote)
prices[stock] = price
print("Quoted %s at (bid:%s, ask:%s, price:%s)" % (stock, bid_price, ask_price, price))
print("Ratio %s" % getRatio(prices["ABC"], prices["DEF"]))