Provide Segments path directive that matches 0 to n segments regardless of leading slashes · akka/akka-http#879

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1 - triagedhelp wantedt:routing

説明

The existing Segments PathMatcher is mostly useful when trailing slashes are enforced everywhere. When no trailing slashes it is a bit more complicated right now to get a list of segments.

The implementation can be basically this:

def pathSegments: Directive1[List[String]] = (Slash ~ Segment).repeat(0, 128, PathMatchers.Neutral) ~ PathEnd // or PathEndOrSingleSlash?

It would allow to use

pathPrefix("tree") {
  pathSegments { segments =>
    ...
  }
}

which would match all of

/tree
/tree/abc
/tree/abc/def

but not

/tree/
/tree/abc/

/cc @lihaoyi

コントリビューターガイド

技術スタック: scala
領域: backendapi
Issue 種別: feature
難度: 3
推定時間: 1-3 hours
活動状況: stale
明確さ: clear
前提条件: Scala knowledgeAkka HTTP routing basics
初心者向け度: 60
調査方針: The issue proposes adding a `pathSegments` directive to Akka HTTP's PathMatcher. The contributor should examine the existing `Segments` PathMatcher implementation in the source code (likely in `akka http core/src/main/scala/akka/http/scaladsl/server/directives/PathDirectives.scala` or similar). The suggested implementation is `(Slash ~ Segment).repeat(0, 128, PathMatchers.Neutral) ~ PathEnd`. The contributor should verify the behavior with and without trailing slashes, and consider whether to use `PathEnd` or `PathEndOrSingleSlash`. Additionally, they should write tests and update documentation. Since the issue is old, it's advisable to check if the maintainers still want this feature or if there are any changes in the current codebase.