vertx / io.vertx.rxjava.ext.web.api.contract.openapi3 / OpenAPI3RouterFactory / setValidationFailureHandler

# setValidationFailureHandler

`open fun setValidationFailureHandler(handler: Handler<RoutingContext>): DesignDrivenRouterFactory<Any>`

Overrides DesignDrivenRouterFactory.setValidationFailureHandler

Set default validation failure handler. You can disable this feature from

### Parameters

`handler` -

Return