57 lines
1.8 KiB
Python
57 lines
1.8 KiB
Python
"""See `KrakenDepoFetcher` for documentation."""
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import datetime
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import logging
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from decimal import Decimal
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import fin_defs
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import krakenex
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from .data import Depo, DepoFetcher, DepoSingle
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logger = logging.getLogger(__name__)
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class KrakenDepoFetcher(DepoFetcher):
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"""Depository fetcher for [Kraken](https://www.kraken.com), the online crypto currency exchange.
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Requirements for use:
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- Account on [Kraken](https://www.kraken.com).
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- Have performed Know Your Customer (KYC) for your account.
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- Created API key from [Kraken Pro
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settings](https://pro.kraken.com/app/settings/api).
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API key must have the **Query Funds Permission**, and **should not have
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any additional permissions**. Employ principle of least priviledge.
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- Install [`krakenex`](https://pypi.org/project/krakenex/) library.
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Depository structure: A `DepoSingle`. No nesting.
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"""
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def __init__(self, kraken_key: str, kraken_secret: str):
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self.assert_param('kraken_key', str, kraken_key)
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self.assert_param('kraken_secret', str, kraken_secret)
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self.client = krakenex.API(
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kraken_key,
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kraken_secret,
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)
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def get_depo(self) -> Depo:
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now = datetime.datetime.now(tz=datetime.UTC)
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result = self.client.query_private('Balance')
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assets: dict[fin_defs.Asset, Decimal] = {}
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for account_raw, balance_str in result['result'].items():
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account = account_raw.removesuffix('.HOLD')
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asset = fin_defs.WELL_KNOWN_SYMBOLS[account]
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balance = Decimal(balance_str)
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if balance != 0:
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assets[asset] = assets.get(asset, Decimal(0)) + balance
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del account, account_raw, balance_str, asset, balance
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return DepoSingle(
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name='Kraken',
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_assets=assets,
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updated_time=now,
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)
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