headerValuePF

Description

Calls the specified partial function with the first request header the function is isDefinedAt and extracts the result of calling the function.

The headerValuePF directive is an alternative syntax version of headerValue.

If the function throws an exception the request is rejected with a MalformedHeaderRejection.

If the function is not defined for any header the request is rejected as "NotFound".

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 #20466.