喷雾解压缩HttpResponse [英] Spray Unzip HttpResponse

问题描述

我正在使用Spray API(spray客户端)访问外部URL，并且压缩了HttpResponse.如何解压缩此HttpResponse以获取其实体(在我的情况下为json)?

I'm using Spray API(spray-client) to hit an external URL and I'm getting gzipped HttpResponse. How do I unzip this HttpResponse to get its entity(json, in my case)?

val future: Future[HttpResponse] = (IO(Http) ? Get(uri)).mapTo[HttpResponse]
val response = Await.result(future, Duration.inf)
val json = response.entity

在这里，将json压缩.如何解压缩?

Here, json is gzipped. How do I unzip it?

推荐答案

您需要使用流水线和decode指令.就像在这个示例中一样.

You need to use pipelining and the decode directive. Like in this example.

修改该示例，您的代码将如下所示:

Modifying that example your code would look something like this:

val pipeline: HttpRequest => Future[String] = (
  sendReceive
  ~> decode(Gzip)
  ~> unmarshal[String]
)
val response: Future[String] =
  pipeline(Get(uri))

如果您不希望期货带来任何好处，则可以对响应进行等待".

You can then do Await on the response if you don't want the benefits of Futures.

在旁注中，您可以使用 spray-json 并为您的响应创建一个对象，然后解组http响应直接进入案例类，而无需处理json.

On a side note you can use spray-json and create an object for your response and then unmarshal the http response directly into a case class without having to deal with the json.

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