Method callback

dash/dash.py:1489–1510

Normally used as a decorator, `@app.callback` provides a server-side callback relating the values of one or more `Output` items to one or more `Input` items which will trigger the callback when they change, and optionally `State` items which provide additional inform

(self, *_args, **_kwargs)

        )

    def callback(self, *_args, **_kwargs) -> Callable[..., Any]:
        """
        Normally used as a decorator, `@app.callback` provides a server-side
        callback relating the values of one or more `Output` items to one or
        more `Input` items which will trigger the callback when they change,
        and optionally `State` items which provide additional information but
        do not trigger the callback directly.

        The last, optional argument `prevent_initial_call` causes the callback
        not to fire when its outputs are first added to the page. Defaults to
        `False` unless `prevent_initial_callbacks=True` at the app level.


        """
        return _callback.callback(
            *_args,
            config_prevent_initial_callbacks=self.config.prevent_initial_callbacks,
            callback_list=self._callback_list,
            callback_map=self.callback_map,
            callback_api_paths=self.callback_api_paths,
            **_kwargs,
        )

    def _inputs_to_vals(self, inputs):
        return inputs_to_vals(inputs)