Downloads bitcoin chart history from waif.jp

ZaifDownloader.py

"""
With this script, we can download BitCoin chart history from zaif.
"""

import time
import requests
import json

ONE_MONTH_SECONDS = 3600 * 24 * 30

if __name__ == "__main__":
    time_stamp = int(time.time())
    csv_str = ""
    for i in range(24):
        tmp = ""
        json_str: str = requests.get(
            "https://zaif.jp/zaif_chart_api/v1/history?symbol=BTC_JPY&resolution=1&from=" + str(
                time_stamp - ONE_MONTH_SECONDS) + "&to=" + str(time_stamp)).text
        time_stamp -= ONE_MONTH_SECONDS
        json_str = json_str.replace("\\", "")
        array_data: list = json.loads(json_str[1:-1])["ohlc_data"]
        # time, volume, average, high, low, close, open
        for d in array_data:
            tmp += str(d["time"]) + "," + str(d["volume"]) + "," + str(d["average"]) + "," + str(
                d["high"]) + "," + str(d["low"]) + "," + str(d["close"]) + "," + str(d["open"]) + "\r\n"
        csv_str = tmp + csv_str
        print(i)
    file = open("./out.csv", "w")
    file.write(csv_str)
    file.close()