vertx / io.vertx.ext.web.api.contract / RouterFactoryOptions / setMountNotImplementedHandler

# setMountNotImplementedHandler

`open fun setMountNotImplementedHandler(mountOperationsWithoutHandler: Boolean): RouterFactoryOptions`

Automatic mount handlers that return HTTP 501 status code for operations where you didn't specify an handler.

### Parameters

`mountOperationsWithoutHandler` -

Return
this object