public class FinalNewAddUpload extends AbstractJavaSamplerClient {
    private static final Logger LOG = LoggerFactory.getLogger(NewAddUploadRequest.class);

    @Override
    public Arguments getDefaultParameters() {
        Arguments params = new Arguments();
        params.addArgument("x", "");
        return params;
    }

    @Override
    public void setupTest(JavaSamplerContext arg0) {
    }

    @Override
    public SampleResult runTest(JavaSamplerContext arg0) {
        SampleResult sr = new SampleResult();
        sr.sampleStart();

        // Create Header Manager
        HeaderManager manager = new HeaderManager();
        manager.add(new Header("Content-Type", "application/json"));
        manager.setName(JMeterUtils.getResString("header_manager_title")); // $NON-NLS-1$

        // HTTPSampler acts as the container for the HTTP request to the site.
        HTTPSamplerProxy sp = new HTTPSamplerProxy();
        sp.setDomain("test.ru");
        sp.setProtocol("https");
        sp.setPath("/path/uploads");
        sp.setMethod("POST");
        sp.addEncodedArgument("body", "{\"file_name\":\"videomessage_50_sec.mp4\",\"file_size\":19682801}", "");

        sr.sampleEnd();
        return sr;
    }

    @Override
    public void teardownTest(JavaSamplerContext arg0) {
    }
}