nonAppliedPostJob.cs

 [Authorize(Roles = DbConstants.Role_JobSeeker)]
        // To get all non applied posted jobs
        [HttpGet(DbConstants.Route_PostJobList + "/" + DbConstants.Route_GetNonAppliedJob)]
        public async Task<List<PostJobResponseDTO>> GetNonAppliedPostJobs([FromQuery] SieveModel sieveModel)
        {
            var user_id = _controllerService.GetUserId(HttpContext);
            var appliedJobs = await _mapper.ProjectTo<AppliedJobResponseDTO>(_context.Users.AsNoTracking().Where(u => u.Id == user_id && !u.isDeleted)
                                                                                                     .SelectMany(j => j.AppliedJobs)
                                                                                                     .OrderByDescending(j => j.AppliedJobId))
                                                     .ToListAsync();
            var postJobList = _context.PostJobDetails.AsNoTracking().Where(j => j.isDeleted == false);
            postJobList = _sieveProcessor.Apply(sieveModel, postJobList);
            var temp_postjobs = _mapper.Map<List<PostJobResponseDTO>>(postJobList);

            List<int> appliedPostJobId = new List<int>();
            foreach (var appliedJob in appliedJobs)
            {
                appliedPostJobId.Add(appliedJob.PostJobId);
            }

            temp_postjobs.ForEach(val =>
            {
                if (!appliedPostJobId.Contains(val.PostJobDetailId))
                {
                    var employerProfile = _context.EmployerProfiles.Find(val.EmployerId);
                    var profilePicture = _context.ProfilePictures.Find(val.EmployerId);
                    if (employerProfile != null && profilePicture != null && !employerProfile.isDeleted)
                    {
                        val.CompanyName = employerProfile.CompanyName!;
                        val.CompanyProfilePicture = profilePicture.ImagePath;
                        _postJobsResponse.Add(val);
                    }
}
            }
            );
            return await Task.FromResult(_postJobsResponse);
        }