DataHandler is the handler for data @Summary Send data to the server @Description Send data to the server and return the result @Tags Data @Accept json @Produce json @Param data body request.DataRequest true "Data to send" @Success 200 {object} response.ResponseHTTP @Failure 400 {object} response.ResponseHTTP @Failure 429 {object} response.ResponseHTTP @Failure 500 {object} response.ResponseHTTP @Router /data [post].