public async Task <IActionResult> AddDemand([FromBody] AppDemand model)
        {
            if (ModelState.IsValid)
            {
                try
                {
                    logger.LogInformation("Adding Demand in the Repository");
                    var addedDemand = await demandRepo.AddProductDemand(model);

                    if (addedDemand != null)
                    {
                        return(Ok(addedDemand));
                    }
                    else
                    {
                        return(NotFound());
                    }
                }
                catch (Exception excp)
                {
                    logger.LogError("Error in adding Demand in the Repository " + excp.Message);

                    return(BadRequest(excp));
                }
            }

            return(BadRequest());
        }