Linux活用レシピ > 仮想通貨に活用 > RaspberryPiで仮想通貨の自動取引システムを作る
このページでは、「Raspberry Pi」と、それで動作するOS「Raspbian」を利用して、低電力の仮想通貨の自動取引システム（自動取引bot）を作る方法を紹介します。
■はじめに■
└ 説明

■準備■
├ ハードウェア
├ 開発環境準備
└ 取引所準備

■取引■
├ バックテスト
├ APIの確認
└ 自動取引



■製品■
このレシピで作成した「日本語版 Rapbian (LibreOffice付) インストール済SDカード」\1800 は以下の販売チャネルで。

◆RaspberryPiで自動取引システム(自動取引bot)を作る◆
APIの確認

    自動取引システム（自動取引bot）で操作するAPIの各機能が、問題なく動作するか確認を行います。

    APIは「Coincheck」のものを使用しますので、ここまでの手順で紹介した内容で、「Coincheck」のアカウントの作成とAPIキーの発行を完了しておいてください。


    ◆ 1. ティッカー [GET] ◆

    各種最新情報を簡易に取得することができます。

    早速ですが、Pythonプログラムは以下になります。
    pi@raspberrypi:~ $ vi coincheck_ticker.py[ENTER]

    
import requests
import json

URL = 'https://coincheck.com/api/ticker'
coincheck = requests.get(URL).json()
for key, item in coincheck.items():
    print("%-9s : %-10.9s " % (key, item))

    実行してみましょう。 
    pi@raspberrypi:~ $ python3 coincheck_ticker.py[ENTER]
    last      : 6295052.0
bid       : 6294007.0
ask       : 6295999.0
high      : 6328233.0
low       : 6145001.0
volume    : 1870.4447
timestamp : 162000241
    情報が取得できました。取得した情報は以下の内容になります。
    RESPONSEITEMS
    last最後の取引の価格
    bid現在の買い注文の最高価格
    ask現在の売り注文の最安価格
    high24時間での最高取引価格
    low24時間での最安取引価格
    volume24時間での取引量
    timestamp現在の時刻

    ◆ 2. 板情報 [GET] ◆

    次に板情報を取得してみます。

    Pythonプログラムは以下になります。
    pi@raspberrypi:~ $ vi coincheck_order_books.py[ENTER]

    
import requests
import json

URL = 'https://coincheck.com/api/order_books'
coincheck = requests.get(URL).json() 
for key in coincheck.keys():
    print(key, ":")
    for value in coincheck[key]:
        print(value)
    print()

    実行してみましょう。 
    pi@raspberrypi:~ $ python3 coincheck_order_books.py[ENTER]
    asks :
['6314959.0', '0.1']
['6314960.0', '0.028']
['6314962.0', '0.01']
['6316236.0', '0.0163328']
['6316315.0', '0.025']
['6316611.0', '0.015']
['6316612.0', '0.07']
['6317542.0', '0.025']
['6317794.0', '0.02444']
['6318586.0', '0.1']
['6319098.0', '0.049']
['6319099.0', '0.15']
['6319571.0', '0.015']
['6319572.0', '0.0332']
['6319667.0', '0.1']
['6319812.0', '0.02']
['6319999.0', '0.01']
['6320203.0', '0.0138']
['6321745.0', '0.01']
['6322163.0', '0.15']
['6322292.0', '0.015']
['6322499.0', '0.005']
['6322527.0', '0.01']
['6323000.0', '0.07']
['6324999.0', '0.005']
['6325469.0', '0.005']
['6325471.0', '0.01384774']
['6325478.0', '0.2']
['6325772.0', '0.0668']
['6326735.0', '0.005']
['6327499.0', '0.0034656']
['6327894.0', '0.01']
['6328582.0', '0.01']
['6328728.0', '0.1933']
['6329000.0', '0.075']
['6329900.0', '0.0071']
['6329999.0', '0.025']
['6330000.0', '0.124']
['6331401.0', '0.00738097']
['6331442.0', '0.025']
['6332442.0', '0.025']
['6332499.0', '0.005']
['6332711.0', '0.00843265']
['6332771.0', '0.02']
['6333000.0', '0.01']
['6333976.0', '0.2']
['6334900.0', '0.01']
['6334999.0', '0.005']
['6335000.0', '0.055']
['6336205.0', '0.01386209']
['6336208.0', '0.01382359']
['6336213.0', '0.05']
['6336592.0', '0.005']
['6336594.0', '0.01383955']
['6336596.0', '0.0138616']
['6336597.0', '0.0138575']
['6336628.0', '0.6736']
['6337499.0', '0.005']
['6337688.0', '0.2']
['6337735.0', '0.00794']
['6337787.0', '0.005']
['6337931.0', '0.01']
['6339019.0', '0.1']
['6339900.0', '0.0071']
['6339995.0', '0.005']
['6339999.0', '0.01']
['6340000.0', '0.34764551']
['6341000.0', '0.1']
['6341214.0', '0.02']
['6342499.0', '0.01']
['6343000.0', '0.1']
['6344000.0', '0.11']
['6344999.0', '0.005']
['6345000.0', '0.305']
['6345002.0', '0.025']
['6345630.0', '0.05']
['6347000.0', '0.005']
['6347499.0', '0.005']
['6348507.0', '0.00502']
['6349500.0', '0.01687']
['6349586.0', '0.15']
['6349603.0', '0.04']
['6349900.0', '0.0071']
['6349999.0', '0.01']
['6350000.0', '1.56763995']
['6350540.0', '0.0077875']
['6352499.0', '0.01']
['6354714.0', '0.2']
['6354999.0', '0.005']
['6355000.0', '0.077']
['6355800.0', '0.01595686']
['6356000.0', '0.01']
['6356129.0', '0.01']
['6356616.0', '0.00794']
['6356865.0', '0.01']
['6357770.0', '0.01']
['6359900.0', '0.0071']
['6359995.0', '0.005']
['6359999.0', '0.01']
['6360000.0', '0.09143472']
['6360247.0', '5.2976']
['6361050.0', '0.02700496']
['6362499.0', '0.005']
['6363636.0', '0.02']
['6364347.0', '0.04303697']
['6364724.0', '0.01']
['6364999.0', '0.01']
['6365000.0', '1.0']
['6365380.0', '0.5']
['6365630.0', '0.05']
['6365877.0', '0.0195']
['6369900.0', '0.0071']
['6369999.0', '0.01']
['6370000.0', '0.46']
['6371000.0', '0.04']
['6372000.0', '0.1']
['6372143.0', '0.01']
['6372499.0', '0.005']
['6373650.0', '0.0125']
['6373939.0', '0.00611866']
['6374000.0', '0.005']
['6374999.0', '0.005']
['6375000.0', '0.055']
['6375106.0', '0.005']
['6376000.0', '0.01213567']
['6379000.0', '0.01']
['6379900.0', '0.0071']
['6379995.0', '0.005']
['6379999.0', '0.01']
['6380000.0', '0.65801518']
['6380975.0', '3.1933']
['6382000.0', '0.105']
['6382403.0', '0.01']
['6382499.0', '0.005']
['6384241.0', '0.01077264']
['6384999.0', '0.005']
['6385000.0', '0.079']
['6385657.0', '0.08']
['6386001.0', '0.01']
['6387499.0', '0.005']
['6388000.0', '0.01']
['6388507.0', '0.00502']
['6388952.0', '0.22']
['6389900.0', '0.0071']
['6389999.0', '0.015']
['6390000.0', '0.20927011']
['6390200.0', '0.3']
['6392000.0', '0.12064455']
['6392499.0', '0.005']
['6393939.0', '0.00609952']
['6394000.0', '0.005']
['6394999.0', '0.205']
['6395000.0', '0.22619289']
['6398000.0', '0.019']
['6398300.0', '0.009']
['6399551.0', '0.005']
['6399876.0', '0.005']
['6399900.0', '0.0071']
['6399910.0', '0.01385817']
['6399995.0', '0.005']
['6399999.0', '0.31955596']
['6400000.0', '3.12532399']
['6400583.0', '0.2']
['6402000.0', '0.005']
['6402499.0', '0.005']
['6403506.0', '0.05']
['6404000.0', '0.01']
['6404307.0', '0.05']
['6404999.0', '0.005']
['6405489.0', '0.03122322']
['6406853.0', '0.01']
['6407000.0', '0.01']
['6407695.0', '0.01']
['6409900.0', '0.0285']
['6409999.0', '0.065']
['6410000.0', '0.7436664']
['6410380.0', '0.01']
['6411000.0', '0.01']
['6411111.0', '0.3']
['6412499.0', '0.005']
['6413271.0', '0.01']
['6414999.0', '0.005']
['6415000.0', '0.02540053']
['6415106.0', '0.005']
['6417623.0', '0.006']
['6418000.0', '0.01']
['6419397.0', '0.00607533']
['6419480.0', '0.016']
['6419900.0', '0.0071']
['6419995.0', '0.005']
['6419999.0', '0.03']
['6420000.0', '0.22693749']
['6420380.0', '0.01']
['6421000.0', '0.01']
['6421007.0', '0.005']
['6422000.0', '0.1']
['6422499.0', '0.005']
['6423000.0', '0.34516445']
['6423858.0', '0.005']
['6424999.0', '0.005']

bids :
['6312171.0', '0.0196']
['6311868.0', '0.025']
['6311867.0', '0.375']
['6311770.0', '0.07']
['6311758.0', '0.025']
['6311568.0', '0.02519']
['6311319.0', '0.055']
['6311221.0', '0.02']
['6310747.0', '0.5685']
['6310554.0', '0.015']
['6310553.0', '0.028']
['6310404.0', '0.01']
['6310001.0', '0.015']
['6310000.0', '0.1828']
['6309376.0', '0.025']
['6309200.0', '0.01']
['6307503.0', '0.015']
['6307502.0', '0.2']
['6307501.0', '0.005']
['6307392.0', '0.15']
['6306988.0', '0.121']
['6306655.0', '0.15']
['6305362.0', '0.01418307']
['6305328.0', '0.2']
['6305177.0', '0.005']
['6305001.0', '0.01']
['6303767.0', '0.015']
['6303766.0', '0.2']
['6302603.0', '0.0668']
['6301422.0', '0.01']
['6301226.0', '0.005']
['6300001.0', '0.015']
['6300000.0', '0.09142857']
['6299601.0', '0.2']
['6299374.0', '0.02']
['6298959.0', '0.01']
['6296509.0', '0.1933']
['6295001.0', '0.015']
['6294241.0', '0.79522174']
['6290500.0', '0.01386793']
['6290164.0', '0.01888793']
['6290005.0', '0.005']
['6290001.0', '0.015']
['6290000.0', '0.005']
['6289677.0', '0.0538']
['6288269.0', '0.02']
['6286238.0', '0.00504']
['6285186.0', '0.01386209']
['6285183.0', '0.01']
['6285181.0', '0.02768729']
['6285180.0', '0.01382359']
['6285179.0', '0.0138616']
['6285178.0', '0.0138575']
['6285172.0', '0.6736']
['6285001.0', '0.015']
['6285000.0', '0.01']
['6282807.0', '0.04']
['6282502.0', '0.05']
['6280238.0', '0.00502']
['6280033.0', '1.60120767']
['6280001.0', '0.015']
['6280000.0', '1.1528']
['6279600.0', '1.0']
['6275001.0', '0.01']
['6274000.0', '0.00501']
['6272502.0', '0.05']
['6272501.0', '0.005']
['6271238.0', '0.00504']
['6270005.0', '0.005']
['6270001.0', '0.015']
['6270000.0', '0.02']
['6269008.0', '0.0074514']
['6265050.0', '0.146']
['6265001.0', '0.005']
['6264836.0', '0.074']
['6264803.0', '5.1971']
['6262210.0', '0.00794']
['6260001.0', '0.01953076']
['6260000.0', '0.02']
['6255001.0', '0.005']
['6253257.0', '0.0074514']
['6252010.0', '0.08']
['6250005.0', '0.005']
['6250001.0', '0.02']
['6250000.0', '0.105448']
['6249622.0', '0.00794']
['6245001.0', '0.005']
['6245000.0', '0.005']
['6240500.0', '0.05']
['6240001.0', '0.015']
['6240000.0', '0.52']
['6238135.0', '0.00819654']
['6235001.0', '0.005']
['6235000.0', '0.00611']
['6232000.0', '0.01']
['6231500.0', '0.05']
['6230778.0', '3.2711']
['6230741.0', '0.00794']
['6230005.0', '0.005']
['6230001.0', '0.015']
['6230000.0', '0.0442']
['6227501.0', '0.005']
['6227251.0', '0.005']
['6225001.0', '0.005']
['6225000.0', '0.01']
['6223644.0', '0.00819654']
['6220001.0', '0.015']
['6220000.0', '0.005']
['6217608.0', '0.016']
['6215001.0', '0.01']
['6215000.0', '0.013']
['6213000.0', '0.1925']
['6210005.0', '0.005']
['6210001.0', '0.015']
['6210000.0', '0.01305152']
['6209783.0', '0.00894168']
['6207548.0', '0.005']
['6205001.0', '0.015']
['6205000.0', '0.00805801']
['6204000.0', '0.00501']
['6200001.0', '0.015']
['6200000.0', '1.32568962']
['6199000.0', '0.005']
['6196552.0', '0.00894168']
['6196000.0', '0.005']
['6195630.0', '0.05']
['6195001.0', '0.005']
['6193000.0', '0.005']
['6190005.0', '0.005']
['6190001.0', '0.015']
['6190000.0', '0.12501']
['6189000.0', '0.005']
['6188946.0', '0.5']
['6186456.0', '0.6']
['6185834.0', '0.005']
['6185630.0', '0.05']
['6185001.0', '0.005']
['6185000.0', '0.01']
['6184834.0', '0.005']
['6183951.0', '0.00968682']
['6183834.0', '0.005']
['6182501.0', '0.005']
['6182495.0', '1.3452']
['6180123.0', '0.005']
['6180001.0', '0.015']
['6180000.0', '0.20118122']
['6177000.0', '0.005']
['6175001.0', '0.005']
['6175000.0', '0.19701']
['6171980.0', '0.00968682']
['6170150.0', '0.01']
['6170005.0', '0.005']
['6170001.0', '0.015']
['6170000.0', '1.7924149']
['6168200.0', '0.3']
['6168150.0', '0.01']
['6165001.0', '0.005']
['6165000.0', '0.005']
['6164000.0', '0.00501']
['6163200.0', '0.005']
['6162550.0', '0.2']
['6162499.0', '0.01']
['6162010.0', '0.2']
['6161100.0', '0.00697927']
['6161020.0', '0.08115539']
['6161018.0', '0.11184223']
['6160639.0', '0.01043196']
['6160493.0', '0.005']
['6160248.0', '0.0071716']
['6160001.0', '0.02']
['6160000.0', '0.31996184']
['6159780.0', '0.005']
['6159572.0', '0.02435234']
['6158966.0', '0.05']
['6158501.0', '0.05']
['6158000.0', '0.00501']
['6157900.0', '0.0055']
['6156901.0', '0.01']
['6156660.0', '0.05']
['6156510.0', '0.1']
['6155001.0', '0.005']
['6155000.0', '0.005']
['6152086.0', '0.005']
['6151200.0', '0.3']
['6151100.0', '0.00699061']
['6151000.0', '0.05']
['6150500.0', '0.3795']
['6150005.0', '0.005']
['6150001.0', '0.015']
['6150000.0', '0.44018208']
['6149000.0', '0.015']
['6148770.0', '0.2']
['6148567.0', '0.2047595']
['6148021.0', '0.01234465']
['6147600.0', '0.01']
['6146000.0', '0.00501']
['6145001.0', '0.00867047']
['6145000.0', '0.005']
['6143200.0', '0.005']
['6142000.0', '0.01369846']
    情報が取得できました。取得した情報は以下の内容になります。
    asks売り注文の情報
    bids買い注文の情報


    ◆ 3. レート [GET] ◆

    次に取引所の注文を元にレートを算出します。
    パラメータは以下になります。
    *order_type注文のタイプ（"sell" or "buy"）
    *pair取引ペア。現在は "btc_jpy" "etc_jpy" "fct_jpy" "mona_jpy"が利用可能です。
    amount注文での量。（例）0.1
    price注文での金額。（例）28000
    ※priceまたはamountのいずれかをパラメータとして指定する必要があり、両方指定してしまうとエラーになります。

    Pythonプログラムは以下になります。
    pi@raspberrypi:~ $ vi coincheck_rate.py[ENTER]

    
import requests
import json

URL = 'https://coincheck.com/api/exchange/orders/rate'
params = {'order_type': 'sell', 'pair': 'btc_jpy', 'amount': 0.1}
coincheck = requests.get(URL, params=params).json() 
print(coincheck)

params = {'order_type': 'buy', 'pair': 'btc_jpy', 'price': 280000}
coincheck = requests.get(URL, params=params).json() 
print(coincheck)

    実行してみましょう。 
    pi@raspberrypi:~ $ python3 coincheck_rate.py[ENTER]
    {'success': True, 'rate': '6360000.15', 'amount': '0.1', 'price': '636000.015'}
{'success': True, 'rate': '6361560.18172', 'amount': '0.04401436', 'price': '280000.0'}
    情報が取得できました。取得した情報は以下の内容になります。
    売り注文で、取引ペアが「btc_jpy」の数量0.1の場合 金額は636000.015円
    買い注文で、取引ペアが「btc_jpy」の金額280000円の場合 数量は0.04401436ビットコイン

    ◆ 4. 販売レート [GET] ◆

    次に販売所のレートを取得します。※取引所ではありません。

    Pythonプログラムは以下になります。
    pi@raspberrypi:~ $ vi coincheck_rate_pair.py[ENTER]

    
import requests
import json

coins = {'BTC': 'btc_jpy', 'ETH': 'eth_jpy',
         'XEM': 'xem_jpy', 'BCH': 'bch_jpy',
         'MONA': 'mona_jpy'}

URL = 'https://coincheck.com/api/rate/'

for key, item in coins.items():
    coincheck = requests.get(URL+item).json()
    print("%-4s : %-10s" % (key, coincheck['rate']))

    実行してみましょう。 
    pi@raspberrypi:~ $ python3 coincheck_rate.py[ENTER]
    BTC  : 6242660.5
ETH  : 365323.9261125
XEM  : 38.01780549
BCH  : 110598.1036065
MONA : 309.13657272
    情報が取得できました。取得した情報は以下の内容になります。
    ビットコイン金額は6242660.5円
    イーサリアム金額は365323.9261125円
    ネム金額は38.01780549円
    ビットコインキャッシュ金額は110598.1036065円
    モナコイン金額は6242660.5円

    ◆ 5. 仮想通貨の購入 ◆

    次にいよいよ仮想通貨を購入してみます。
    ここまでは認証のいらない「Public API」でしたが、ここからは「Private API」となります。

    また、実際にお金が動きますので、くれぐれも自己責任でお願いします。

    なお、プログラムは、前半のクラスの定義と後半の取引の指示に分かれます。
    また、プログラム中に以下の部分が出てきますので、こちらにご自身のアカウントのAPIキーを入れてください。

      access_key = '取得したアクセスキー'
      secret_key = '取得したシークレットキー'

    例えばアクセスキーが「AAAA」で、シークレットキーが「BBBBBBBB」の場合、以下になります。

      access_key = 'AAAA'
      secret_key = 'BBBBBBBB'


    プログラムでは少額の1000円分のビットコインを成行買い注文を行います。
    「Coincheck」の口座に1000円以上入金して実行してください。

    Pythonプログラムは以下になります。
    pi@raspberrypi:~ $ vi coincheck_privateapi.py[ENTER]

    
import json
import requests
import time
import hmac
import hashlib

class Coincheck:
    def __init__(self, access_key, secret_key, url='https://coincheck.com'):
        self.access_key = access_key
        self.secret_key = secret_key
        self.url = url

    def get(self, path, params=None):
        if params != None:
            params = json.dumps(params)
        else:
            params = ''
        nonce = str(int(time.time()))
        message = nonce + self.url + path + params

        signature = self.getSignature(message)

        return requests.get(
            self.url+path,
            headers=self.getHeader(self.access_key, nonce, signature)
        ).json()

    def post(self, path, params):
        params = json.dumps(params)
        nonce = str(int(time.time()))
        message = nonce + self.url + path + params

        signature = self.getSignature(message)

        return requests.post(
            self.url+path,
            data=params,
            headers=self.getHeader(self.access_key, nonce, signature)
        ).json()

    def delete(self, path):
        nonce = str(int(time.time()))
        message = nonce + self.url + path

        signature = self.getSignature(message)

        return requests.delete(
            self.url+path,
            headers=self.getHeader(self.access_key, nonce, signature)
        ).json()

    def getSignature(self, message):
        signature = hmac.new(
            bytes(self.secret_key.encode('ascii')),
            bytes(message.encode('ascii')),
            hashlib.sha256
        ).hexdigest()

        return signature

    def getHeader(self, access_key, nonce, signature):
        headers = {
            'ACCESS-KEY': access_key,
            'ACCESS-NONCE': nonce,
            'ACCESS-SIGNATURE': signature,
            'Content-Type': 'application/json' # 超重要。
        }

        return headers

access_key = '取得したアクセスキー'
secret_key = '取得したシークレットキー'

# インスタンスを作りましょう。
coincheck = Coincheck(access_key, secret_key)

# 1000円分のビットコインを成行買い注文
path_orders = '/api/exchange/orders'
params = {
    "pair": "btc_jpy",
    "order_type": "market_buy",
    "market_buy_amount": 1000, # 量ではなく金額
}
result = coincheck.post(path_orders, params)
print(result)

    実行してみましょう。 
    pi@raspberrypi:~ $ python3 coincheck_privateapi.py[ENTER]
    {'success': False, 'error': 'Amount 量が最低量(0.005 BTC)を下回っています'}
    エラーになり買えませんでした・・。
    というのも、2021/05/04時点ではビットコインの価格は「624万円」で、1000円分は以下の「Coincheck」がこの時最低量として決めている(0.005 BTC)に遠く及ばないので、エラーとなり取引は成立しませんでした。

    2021/05/04時点のCoincheck取引所、最小注文数量は、以下の通りです。
    (BTC/JPY)0.005BTC以上 かつ 500円(相当額)以上から
    (FCT/JPY)500円(相当額)以上から
    (ETC/JPY)500円(相当額)以上から
    (MONA/JPY)500円(相当額)以上から

    「624万円」の「0.005 BTC」は2万7千円弱です。
    ただの確認にこんな冒険はしたくないので、ここはモナコインを1000円分買うコードに変更します。

      "pair": "btc_jpy",

      ↓以下に変更

      "pair": "mona_jpy",


    Pythonプログラムは以下になります。
    pi@raspberrypi:~ $ vi coincheck_privateapi_mona.py[ENTER]

    
import json
import requests
import time
import hmac
import hashlib

class Coincheck:
    def __init__(self, access_key, secret_key, url='https://coincheck.com'):
        self.access_key = access_key
        self.secret_key = secret_key
        self.url = url

    def get(self, path, params=None):
        if params != None:
            params = json.dumps(params)
        else:
            params = ''
        nonce = str(int(time.time()))
        message = nonce + self.url + path + params

        signature = self.getSignature(message)

        return requests.get(
            self.url+path,
            headers=self.getHeader(self.access_key, nonce, signature)
        ).json()

    def post(self, path, params):
        params = json.dumps(params)
        nonce = str(int(time.time()))
        message = nonce + self.url + path + params

        signature = self.getSignature(message)

        return requests.post(
            self.url+path,
            data=params,
            headers=self.getHeader(self.access_key, nonce, signature)
        ).json()

    def delete(self, path):
        nonce = str(int(time.time()))
        message = nonce + self.url + path

        signature = self.getSignature(message)

        return requests.delete(
            self.url+path,
            headers=self.getHeader(self.access_key, nonce, signature)
        ).json()

    def getSignature(self, message):
        signature = hmac.new(
            bytes(self.secret_key.encode('ascii')),
            bytes(message.encode('ascii')),
            hashlib.sha256
        ).hexdigest()

        return signature

    def getHeader(self, access_key, nonce, signature):
        headers = {
            'ACCESS-KEY': access_key,
            'ACCESS-NONCE': nonce,
            'ACCESS-SIGNATURE': signature,
            'Content-Type': 'application/json' # 超重要。
        }

        return headers

access_key = '取得したアクセスキー'
secret_key = '取得したシークレットキー'

# インスタンスを作りましょう。
coincheck = Coincheck(access_key, secret_key)

# 1000円分のMONAコインを成行買い注文
path_orders = '/api/exchange/orders'
params = {
    "pair": "mona_jpy",
    "order_type": "market_buy",
    "market_buy_amount": 1000, # 量ではなく金額
}
result = coincheck.post(path_orders, params)
print(result)

    実行してみましょう。 
    pi@raspberrypi:~ $ python3 coincheck_privateapi_mona.py[ENTER]
    {'success': True, 'id': NNNNNNNNNN, 'amount': None, 'rate': None, 'order_type': 'market_buy', 'pair': 'mona_jpy', 'created_at': '2021-05-03T16:00:28.000Z', 'market_buy_amount': '1000.0', 'stop_loss_rate': None}
    買えました！
    Coincheckのホームページで確認すると、MONAコインが買えてることが確認できたと思います。

    いかがでしょうか、簡単にプログラムで仮想通貨を買えましたね。しびれますね。