How to use OKHTTP to make a post request?

Question

I read some examples which are posting jsons to the server.

some one says :

OkHttp is an implementation of the HttpUrlConnection interface p

Answer 1

You can make it like this:

    MediaType JSON = MediaType.parse("application/json; charset=utf-8");
    RequestBody body = RequestBody.create(JSON, "{"jsonExample":"value"}");

    OkHttpClient client = new OkHttpClient();

    Request request = new Request.Builder()
            .url(url)
            .post(body)
            .addHeader("Authorization", "header value") //Notice this request has header if you don't need to send a header just erase this part
            .build();

    Call call = client.newCall(request);

    call.enqueue(new Callback() {
        @Override
        public void onFailure(Request request, IOException e) {

            Log.e("HttpService", "onFailure() Request was: " + request);

            e.printStackTrace();
        }

        @Override
        public void onResponse(Response r) throws IOException {

            response = r.body().string();

            Log.e("response ", "onResponse(): " + response );

        }
    });