vertx / io.vertx.rxjava.circuitbreaker / CircuitBreaker / rxExecuteCommandWithFallback

# rxExecuteCommandWithFallback

`open fun <T : Any> rxExecuteCommandWithFallback(command: Handler<Future<T>>, fallback: Function<Throwable, T>): Single<T>`

Same as `io.vertx.rxjava.circuitbreaker.CircuitBreaker#executeWithFallback` but using a callback.

### Parameters

`command` - the operation

`fallback` - the fallback

Return