# Import our financial data API library
from financialdata import FinancialDataClient

# Initialize client with API key
client = FinancialDataClient(api_key="your_api_key")

# Get real-time quote
quote = client.get_quote(symbol="AAPL")
print(f"AAPL Price: ${quote.price}")

# Get historical data
historical_data = client.get_historical_data(
  symbol="MSFT",
  start_date="2023-01-01",
  end_date="2023-12-31",
  interval="1d"
)

# Get fundamental data
fundamentals = client.get_fundamentals(symbol="TSLA")
print(f"TSLA Market Cap: ${fundamentals.market_cap}")

# WebSocket real-time streaming
def quote_handler(quote_data):
  print(f"Real-time update: {quote_data}")

client.subscribe_quotes(["AAPL", "MSFT", "GOOGL"], quote_handler)