akka-http+spray-json客户端json封送

Question

我可以找到许多例子，说明如何让akka-http服务器轻松封送由case类表示的响应实体，只需混合使用SprayJSONSupport/DefaultJSONProtocol，在隐式作用域中提供jsonFormat并在路由DSL中使用complete指令。整齐！

(Source.single(request -> context)
.via(clientFlow)
.runWith(Sink.head).flatMap {
  case (Success(r: HttpResponse), c: T) => Future.successful(r)
  case (Failure(f), c: T) => Future.failed(f)
}, context)

HttpRequest(
        method = HttpMethods.POST,
        uri = "/uri",
        entity = HttpEntity(contentType, """{"iWish":"i was an object"}"""))

complete(StatusCodes.BadRequest, SomeCaseClass(iWish = "i was an object"))

Answer 1

您可以有如下内容（如果format在范围内）

Marshal(yourObject).to[RequestEntity].map { entity =>
  HttpRequest(
    method = HttpMethods.POST,
    uri = "/uri",
    entity = entity)
}

（此处进一步阅读）