binance_api/yfinanceclient.py

import yfinance as yf
import pandas as pd

class YFinanceClient:
    def __init__(self, ticker):
        """
        Initializes the YFinanceClient with a stock ticker.

        Args:
            ticker (str): The stock ticker symbol.
        """
        self.ticker = ticker
        self.stock = yf.Ticker(ticker)

    def fetch_historical_prices(self, period='1mo', interval='1h'):
        """
        Fetches historical stock prices for the specified period and interval.

        Args:
            period (str): The period over which to fetch historical data (e.g., '1mo' for one month).
            interval (str): The data interval (e.g., '1h' for hourly data).

        Returns:
            pd.DataFrame: A DataFrame containing the historical stock prices.
        """
        hist = self.stock.history(period=period, interval=interval)
        hist.reset_index(inplace=True)
        # Ensure the DataFrame is in a consistent format with expected column names
        hist.rename(columns={'Datetime': 'date', 'Open': 'open', 'High': 'high', 'Low': 'low', 'Close': 'close', 'Volume': 'volume'}, inplace=True)
        return hist

# Example usage:
# client = YFinanceClient('AAPL')
# data = client.fetch_historical_prices(period='1mo', interval='1h')