Again, not necessarily the best solution but ..
Note: Some of the code here is in Java, so you will need to do some
digging/translation
Modifying the akka.http.marshallers.jackson.Jackson (Scala)
(possibly creating your own copy with the modifications)
Adding the following
def jsonAsString(): Unmarshaller[String] =
UnmarshallerImpl[String] { (_ec, _flowMaterializer) ⇒
implicit val ec = _ec
implicit val mat = _flowMaterializer
unmarshalling.Unmarshaller.messageUnmarshallerFromEntityUnmarshaller { //
isn't implicitly inferred for unknown reasons
unmarshalling.Unmarshaller.stringUnmarshaller
.forContentTypes(`application/json`)
}
}(ClassTag(classOf[String]))
You can then use the RequestVal (java)
RequestVal<String> jsonStringExtractor =
RequestVals.entityAs(MyJackson.jsonAsString());
To extract the JSON String
@Override
public Route createRoute() {
return route(
pathPrefix("jsontest").route(
post(handleWith(stringParser, (ctx, theRequest) -> {
System.out.println("JSON String :: "+theRequest);
return ctx.complete(createHttpResponse("OK"));
})))
);
Hope this helps, feedback is more than welcome
--
Mohamed
On Friday, January 16, 2015 at 3:26:48 PM UTC+2, Robin Bakkerus wrote:
>
> Can some one help me with (I think) a very simply question, but one I
> could not figure out myself yet.
>
> It is about how extract the (json) string out of the RequestEntity, inside
> a HttpRequest
>
> From the command line I give a command like this:
> curl -i -H "Accept: application/json" -H "Content-Type:application/json"
> -X POST --data '{"value":{"id":1}' http://localhost:8000/saveTsta
>
> And this should be handled by an Akka-http server like this:
>
> def requestHandler(req: HttpRequest): Future[HttpResponse] = req match {
> case HttpRequest(POST, Uri.Path("/saveTsta"), _, _, _) =>
> saveTsta(req)
> case _: HttpRequest =>
> unknownReq(req)
> }
>
>
> def saveTsta(req: HttpRequest): Future[HttpResponse] = {
> val entity:RequestEntity = req.entity
>
> val json:String = how_do_get_the_json_data_out_of(entity) ???
> }
>
> Txs in advance
>
--
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