INNER CODE UNIT · Python

j1939_status

Chanchaldhiman/CANviz · backend/canviz/cli.py:1022

def j1939_status(
    host: Annotated[str, typer.Option("--host", help="CANviz server host")] = "127.0.0.1",
    port: Annotated[int, typer.Option("--port", help="CANviz server port")] = 8080,
) -> None:
    """
    Show J1939 decoder status from a running CANviz server.

    Displays mode, PGN database size, active nodes, recent BAM messages,
    and active DM1 fault codes. Requires `canviz serve` to be running.

    Example:
      canviz serve --interface slcan --channel COM3 --bitrate 250000 &
      canviz j1939 status
    """
    import urllib.request
    import urllib.error

    url = f"http://{host}:{port}/j1939/status"

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