export json

 public static string ExportPrisonersByCells(SoftJailDbContext context, int[] ids)
        {
            var prisoners = context.Prisoners.Where(x => ids.Any(i => i == x.Id))
                .ToArray()
                .Select(p => new
                {
                    Id= p.Id,
                    Name = p.FullName,
                    CellNumber = p.Cell.CellNumber,

                    Officers = p.PrisonerOfficers.Select(o =>new ExportOfficerDto
                    {
                        OfficerName=o.Officer.FullName,
                        Department=o.Officer.Department.Name

                    }).OrderBy(o=>o.OfficerName)
                    .ToArray(),

                    TotalOfficerSalary=Math.Round(p.PrisonerOfficers.Sum(o=>o.Officer.Salary),2)

                })
                .OrderBy(p=>p.Name).ThenBy(p=>p.Id)
                .ToArray();

            string result = JsonConvert.SerializeObject(prisoners, Formatting.Indented);

            return result;
        }