Function run

src/py/reactpy/reactpy/backend/utils.py:26–48

Run a component with a development server

(
    component: RootComponentConstructor,
    host: str = "127.0.0.1",
    port: int | None = None,
    implementation: BackendType[Any] | None = None,
)

def run(
    component: RootComponentConstructor,
    host: str = "127.0.0.1",
    port: int | None = None,
    implementation: BackendType[Any] | None = None,
) -> None:
    """Run a component with a development server"""
    logger.warning(_DEVELOPMENT_RUN_FUNC_WARNING)

    implementation = implementation or import_module("reactpy.backend.default")
    app = implementation.create_development_app()
    implementation.configure(app, component)
    port = port or find_available_port(host)
    app_cls = type(app)

    logger.info(
        "ReactPy is running with '%s.%s' at http://%s:%s",
        app_cls.__module__,
        app_cls.__name__,
        host,
        port,
    )
    asyncio.run(implementation.serve_development_app(app, host, port))


def find_available_port(host: str, port_min: int = 8000, port_max: int = 9000) -> int: