public async Task Put(ReleyViewModel model)
        {
            var relay = await set.FirstOrDefaultAsync(r => r.id == model.Id);

            relay.Name          = model.Name ?? relay.Name;
            relay.Value         = model.Value ?? relay.Value;
            relay.TmpSensorId   = model.TmpSensorId ?? relay.TmpSensorId;
            relay.LightSensorId = model.LightSensorId ?? relay.LightSensorId;
            await _context.SaveChangesAsync();
        }
 public async Task Post(ReleyViewModel model)
 {
     set.Add(new Reley
     {
         Value         = model.Value.Value,
         LightSensorId = model.LightSensorId,
         Name          = model.Name,
         TmpSensorId   = model.TmpSensorId
     });
     await _context.SaveChangesAsync();
 }