Android Java - OkHttp Post Enqueue

 /*
    import com.squareup.okhttp.Callback;
    import com.squareup.okhttp.MultipartBuilder;
    import com.squareup.okhttp.OkHttpClient;
    import com.squareup.okhttp.Request;
    import com.squareup.okhttp.RequestBody;
    import com.squareup.okhttp.Response;
*/
 
 OkHttpClient client = new OkHttpClient();

        RequestBody requestBody = new MultipartBuilder()
                .type(MultipartBuilder.FORM)
                .addFormDataPart("key", "Value")
                .build();
        Request request = new Request.Builder()
                .url("http://www.")
                .post(requestBody)
                .build();


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

            }

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

            }
        });