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index.cs

@using Microsoft.AspNetCore.Mvc.RazorPages
@using Microsoft.AspNetCore.Routing


public class IndexModel : PageModel
{
    private readonly IEnumerable<EndpointDataSource> _endpointSources;
    public IEnumerable<RouteEndpoint> EndpointSources { get; set; }
    public IndexModel(IEnumerable<EndpointDataSource> endpointSources)
    {
        _endpointSources = endpointSources;
        EndpointSources = _endpointSources
            .SelectMany(x => x.Endpoints)
            .OfType<RouteEndpoint>();
    }

    public void OnGet()
    {
        foreach (RouteEndpoint rep in EndpointSources)
        {
            Log.Information("{P1} {P2}", rep.RoutePattern.RawText, rep.DisplayName);
        }
    }
}

Program.cs

public class Program
{
    public static void Main(string[] args)
    {
        var builder = WebApplication.CreateBuilder(args);

        SetupLogging.Development();

        builder.Services.AddRazorPages(op =>
        {
            op.Conventions.AddFolderRouteModelConvention("/", model =>
            {
                foreach (var selector in model.Selectors)
                {
                    var pageName = selector.AttributeRouteModel.Template.ToString();
                    Log.Information("'{P1}'", pageName);
                }
            });
        });
  ...       
}        

SetupLogging.cs

using Serilog;
using SeriLogLibrary;
using static System.DateTime;

namespace WebApplication1.Classes;

public class SetupLogging
{
    public static void Development()
    {

        Log.Logger = new LoggerConfiguration()
            .MinimumLevel.Verbose()
            .WriteTo.Console(theme: SeriLogCustomThemes.Theme3())
            .WriteTo.File(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "LogFiles", $"{Now.Year}-{Now.Month}-{Now.Day}", "Log.txt"),
                rollingInterval: RollingInterval.Infinite,
                outputTemplate: "[{Timestamp:yyyy-MM-dd HH:mm:ss.fff} [{Level}] {Message}{NewLine}{Exception}")
            .CreateLogger();
    }
}