Extracts the unmatched path from the request context.
extractUnmatchedPath directive extracts the remaining path that was not yet matched by any of the PathDirectives (or any custom ones that change the unmatched path field of the request context). You can use it for building directives that handle complete suffixes of paths (like the
getFromDirectory directives and similar ones).
mapUnmatchedPath to change the value of the unmatched path.
See also extractMatchedPath to see similar directive for matched path.
import static akka.http.javadsl.server.Directives.complete; import static akka.http.javadsl.server.Directives.extractUnmatchedPath; final Route route = pathPrefix("abc", () -> extractUnmatchedPath(remaining -> complete("Unmatched: '" + remaining + "'") ) ); // tests: testRoute(route).run(HttpRequest.GET("/abc")) .assertEntity("Unmatched: ''"); testRoute(route).run(HttpRequest.GET("/abc/456")) .assertEntity("Unmatched: '/456'");