data_fetcher/yfinance_client.py

import yfinance as yf

def fetch_intraday_data(symbol, start_date, end_date):
    """
    Fetches 15-minute intraday stock data for the specified symbol between start_date and end_date.

    Parameters:
    - symbol (str): The stock symbol to fetch data for (e.g., 'AAPL').
    - start_date (str): The start date for the data in 'YYYY-MM-DD' format.
    - end_date (str): The end date for the data in 'YYYY-MM-DD' format.

    Returns:
    - DataFrame: Pandas DataFrame containing the intraday stock data.
    """
    # Define the ticker object
    ticker = yf.Ticker(symbol)
    
    # Fetch the historical market data
    data = ticker.history(interval="15m", start=start_date, end=end_date)
    
    # Return the data
    return data

if __name__ == "__main__":
    # Example usage
    symbol = "AAPL"  # Apple Inc.
    start_date = "2023-01-01"
    end_date = "2023-01-31"
    
    # Fetch the data
    data = fetch_intraday_data(symbol, start_date, end_date)
    
    # Display the first few rows of the data
    print(data.head())