LoadingService.cs

        public async Task AddAllAsync(PostedJsonData data)
        {
            try
            {
                
                //refactor for async enumerables
                foreach (var t in data.Triggers)
                {
                    t.Device = _context.Devices.FirstOrDefault(x => x.Serial.Equals(t.Device.Serial)) ?? t.Device;
                    t.DeviceAssignment.Unit = _context.Units.FirstOrDefault(x => x.SummaryDataUnitID.Equals(t.DeviceAssignment.Unit.SummaryDataUnitID)) ?? t.DeviceAssignment.Unit;
                    _context.Triggers.Add(t);
                    _context.SaveChanges();
                }
            } catch (Exception e)
            {
                //TO DO: Handle this later.
                Console.WriteLine(e);
            }
        }