private readonly IDiagnosticContext _diagnosticContext;

        public EmployeesController(ILogger<EmployeesController> logger, IEmployeesRepository employeesRepository, IDiagnosticContext diagnosticContext)
        {
            ...
            _diagnosticContext = diagnosticContext;
        }  
        
        ...

        [HttpGet]
        [Route("[action]")]
        public async Task<IActionResult> Get(Guid employeeId)
        {
            ...
            var employee = await _employeesRepository.GetEmployee(employeeId);

            _diagnosticContext.Set("Employee", employee?.ToString());

            return Ok(employee);
        }