@Test
  public void chunkPost() throws Exception {
    final AtomicReference<String> body = new AtomicReference<String>();
    final AtomicReference<String> encoding = new AtomicReference<String>();
    handler = new RequestHandler() {

      @Override
      public void handle(Request request, HttpServletResponse response) {
        body.set(new String(read()));
        response.setStatus(HTTP_OK);
        encoding.set(request.getHeader("Transfer-Encoding"));
      }
    };
    String data = "hello";
    int code = post(url).chunk(2).send(data).code();
    assertEquals(HTTP_OK, code);
    assertEquals(data, body.get());
    assertEquals("chunked", encoding.get());
  }
Make a post in chunked mode

@throws Exception
lib/src/test/java/com/github/kevinsawicki/http/HttpRequestTest.java