Embedded Technologies

Hello,

I am using Java 8 ME Embedded and I would like to add a Json object in the body of an http request.

I would like to do something like :

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     HttpClientBuilder clientBuilder = HttpClientBuilder.getInstance();

        HttpClient client = clientBuilder.build();

        HttpRequestBuilder requestBuilder = client.build("my_URI");
        requestBuilder.setHeader(HttpHeader.ACCEPT, "text/plain");

[...]

        requestBuilder.setMethod(HttpMethod.POST);

        HttpRequest request = requestBuilder.build();

//creating the Json object to be sent in the http request body
      JsonObject myJsonObj= Json.createObjectBuilder()
     .add("firstname", "John")
     .add("lastname", "XXX")
     .build();

//This part, I am a bit confused : how to get the OutputStream in which I should put the Json object?

JsonWriter jsonWriter = Json.createWriter(java.io.OutputStream out);

jsonWriter.writeObject(myJsonObj);

jsonWriter.close();

     //invoking the http request

      HttpResponse response = request.invoke();

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Do you have any tip, please ?
Thanks in advance.

Bruno