SignalRClient

class fastf1.livetiming.client.SignalRClient(filename, filemode='w', debug=False, timeout=60, logger=None, no_auth=False)

A client for receiving and saving F1 timing data which is streamed live over the SignalR protocol.

During an F1 session, timing data and telemetry data are streamed live using the SignalR protocol. This class can be used to connect to the stream and save the received data into a file.

The data will be saved in a raw text format without any postprocessing. It is not possible to use this data during a session. Instead, the data can be processed after the session by calling fastf1.core.Session.load() and providing a LiveTimingData object.

Parameters:

• filename (str) – filename (opt. with path) for the output file

• filemode (str) – one of ‘w’ or ‘a’; append to or overwrite file content it the file already exists. Append-mode may be useful if the client is restarted during a session.

• debug (bool) – When set to true, the complete SignalR message is saved. By default, only the actual data from a message is saved.

• timeout (int) – Number of seconds after which the client will automatically exit when no message data is received. Set to zero to disable.

• logger (Optional) – By default, errors are logged to the console. If you wish to customize logging, you can pass an instance of logging.Logger (see: logging).

• no_auth (bool) – If set to true, the client will attempt to connect without authentication. This may only work for some sessions or may only return empty or partial data.

Methods:

start()

Connect to the data stream and start writing the data to a file.

start()

Connect to the data stream and start writing the data to a file.