[Spray Client]: Facebook graph API returning wrong contentype

Question

Staring with the Spray Library I tried to make a request to the Facebook Graph API:

val responseF: Future[HttpResponse] = pipeline(Get("http://graph.facebook.com/v2.1/facebook/picture?redirect=false"))


def receive = {
    case _ =>
      val originalSender = sender()
      responseF onComplete{
        case Success(response) =>
            log.info(response.toString)
            originalSender ! response.toString
          log.info(  """|Response for GET request
                       |status : {}
                       |headers: {}
                       |body   : {}""".stripMargin,
            response.status.value, response.headers.mkString("\n  ", "\n  ", ""), response.entity.asString)
        case Failure(error) =>
          log.error(error, "Could not get Facebook stuff")
          originalSender ! "not working"
      }

  }

The main problem is that the contentype of the response is Content-Type: text/javascript; charset=UTF-8 instead of the expected application/json

What exactly is wrong with my request?

As Spray relies heavily on the content-type for parsing etc.

Answer 1

The simple solution was to just add an acceptance header, but I couldn't figure out how:

pipeline( 
    Get("http://graph.facebook.com/v2.1/facebook/picture?redirect=false").withHeaders(Accept(MediaTypes.`application/json`)) 
  ) 

Thank to a quick answer on the goolge group I finally get now the correct content type.