我正在尝试使用
spray-client和
spray-httpx,我无法弄清楚如何将’set-cookie’标头从HttpResponse转换为我想在HttpRequest上设置的’cookie’标头
val responseSetCookieHeaders = response.headers filter { _.name == "Set-Cookie" } ... val requestCookieHeader:HttpHeader = ??? ... addHeader(requestCookieHeader) ~> sendReceive ~> { response => ??? }
我确实看到了spray.http.HttpHeaders.Cookie,但我看不到从HttpHeader的实例转换为HttpCookie的方法……
解决方法
HttpHeaders.Cookie是一个带有unapply方法的case类.所以你可以通过一个简单的函数从响应中提取它:
def getCookie(name: String): HttpHeader => Option[HttpCookie] = { case Cookie(cookies) => cookies.find(_.name == name) }
我会用以下方式做到这一点:
// some example response with cookie val httpResponse = HttpResponse(headers = List(`Set-Cookie`(HttpCookie("a","b")))) // extracting HttpCookie val httpCookie: List[HttpCookie] = httpResponse.headers.collect { case `Set-Cookie`(hc) => hc } // adding to client pipeline val pipeline = addHeader(Cookie(httpCookie)) ~> sendReceive
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