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

(0 评论) (0 反应) (0 负责人)Scala (1,311 star) (598 fork)batch import

1 - triagedhelp wantedt:routing

描述

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

贡献者指南

技术栈: scala
领域: backendapi
议题类型: feature
难度: 3
预计时间: 1-3 hours
活动状态: stale
清晰度: clear
前置要求: Scala knowledgeAkka HTTP routing basics
新手友好度: 60
研究方向: 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.