binance.py

#!/usr/bin/env python3
"""
MIT License
Copyright 2021 Racterub <root@racterub.me>

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 requests
import hmac
import time
from hashlib import sha256
from urllib.parse import urlencode



class Binance:
    def __init__(self, api_key, api_secret):
        self._api_url = "http://api.binance.com"
        self._api_key = api_key
        self._api_secret = api_secret

    def _gen_sig(self, params):
        return hmac.new(self._api_secret.encode(), urlencode(params).encode(), sha256).hexdigest()

    def _create_request(self, api, params, use_sig=True, use_timestamp=True):
        headers = {
            "Accept": "application/json"
        }
        headers["X-MBX-APIKEY"] = self._api_key
        if use_timestamp:
            params["timestamp"] = int(time.time()*1000)
        if use_sig:
            params["signature"] = self._gen_sig(params)
        return requests.get(api, params=params, headers=headers)
    
    def check_connection(self):
        api = f"{self._api_url}/sapi/v1/system/status"
        return self._create_request(api, {}, use_sig=False).json()

    def get_deposit_record(self):
        api = f"{self._api_url}/sapi/v1/capital/deposit/hisrec"
        return self._create_request(api, {}).json()

    def get_tx_history(self, pair, **kwargs):
        """Get transaction history for pair

        Args:
            pair (String): coin/base pair

        Returns:
            List: List of transaction history
        """
        api = f"{self._api_url}/api/v3/myTrades"
        param = {"symbol": pair}
        for k,v in kwargs.items():
            param[k] = v
        return self._create_request(api, param).json()
    
    def get_current_price(self, pair):
        """Get current price for pair

        Args:
            pair (String): coin/base pair

        Returns:
            float: Current price for pair
        """
        api = f"{self._api_url}/api/v3/ticker/price"
        param = {"symbol": pair}
        return float(self._create_request(api, param, use_sig=False, use_timestamp=False).json()["price"])
    
    def get_history_price(self, pair, start_time):
        """Get Binance history price

        Args:
            pair (String): code/base prir
            start_time (Long): UNIX timestamp

        Returns:
            float: History price at start_time for pair
        """
        api = f"{self._api_url}/api/v3/klines "
        param = {
            "symbol": pair,
            "interval": "1m",
            "limit": 1,
            "startTime": start_time
        }
        req = _create_request(api, param).json()
        return (float(req[0][2]) + float(req[0][3])) / 2

    def check_account_status(self):
        """Check Binance account status

        Returns:
            Boolean: account status
        """
        api = f"{self._api_url}/sapi/v1/account/status"
        return self._create_request(api, {}).json()["data"] == "Normal"

    def get_deposit_record(self):
        """Get deposit record

        Returns:
            json: Deposit records
        """
        api = f"{self._api_url}/sapi/v1/capital/deposit/hisrec"
        return self._create_request(api, {}).json()