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allwpilib/simulation/halsim_ws_server
Tyler Veness 1705b2d61c Upgrade wpiformat and use clang-format's include sorting (#8350)
This PR also uses the newly added -default-branch flag to generate the list of changed files with respect to the correct branch (2027).
2025-11-11 18:05:12 -08:00
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HAL WebSockets Server

This is an extension that provides a server version of a WebSockets API for transmitting robot hardware interface state over a network. See the Robot Hardware Interface WebSockets API specification for more details on the protocol.

Configuration

The WebSockets server has a number of configuration options available through environment variables.

HALSIMWS_SYSROOT: The local directory to serve non-websocket HTTP content from (e.g. HTML files) starting from /. Defaults to the sim subdirectory of the current working directory.

HALSIMWS_USERROOT: The local directory to serve non-websocket HTTP content from (e.g. HTML files) starting from /user/. Defaults to the sim/user subdirectory of the current working directory.

HALSIMWS_PORT: The port number to listen at. Defaults to 3300.

HALSIMWS_URI: The URI path to use for WebSockets connections. Defaults to "/wpilibws".