rejectEmptyResponse

Description

Replaces a response with no content with an empty rejection.

The rejectEmptyResponse directive is mostly used with marshalling Optional<T> instances. The value None is usually marshalled to an empty but successful result. In many cases None should instead be handled as 404 Not Found which is the effect of using rejectEmptyResponse.

Example

TODO: Example snippets for JavaDSL are subject to community contributions! Help us complete the docs, read more about it here: write example snippets for Akka HTTP Java DSL #218.