Live.start

Start the session.

A client can only be started once, and after a successful connection is made by calling Live.subscribe.

A client can be gracefully stopped by calling Live.stop or forcefully using Live.terminate

When iterating records with Live.__iter__ or Live.__aiter__ it is not necessary to call Live.start and doing so before iterating will raise a ValueError.

Info

A session cannot be started more than once.

API method 
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Live.start() -> None
Example usage 
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import databento as db

# Create a live client
client = db.Live(key="$YOUR_API_KEY")

# Subscribe to the trades schema for all ES futures
client.subscribe(
    dataset="GLBX.MDP3",
    schema="trades",
    stype_in="parent",
    symbols="ES.FUT",
)

# Print records as they arrive
client.add_callback(print)

# Start the streaming session
client.start()

# Block until disconnection
client.block_for_close()