handler property
ControllerPlan?
get
handler
How to call the controller (the last function of controllers), read once. Null when the route has no controller function. Throws a StateError when a parameter type is not known.
Implementation
ControllerPlan? get handler {
if (!_handlerRead) {
Function? fn = action;
_handler = fn == null ? null : ControllerPlan.of(fn, this);
_handlerRead = true;
}
return _handler;
}