code: @POST
      @Path("/_search")
      public Response searchWithPost()
              throws IOException {
          return execute(getResourceRequest(RequestTypeEnum.POST, RestOperationTypeEnum.SEARCH_TYPE));
      }
docs: Search the resource type based on some filter criteria
  
  @return the response
  @see <a href="https://www.hl7.org/fhir/http.html#search">https://www.hl7.org/fhir/http.html#search</a>