Example of using .NET 8 IExceptionHandler to return 7807 ProblemDetails compliant response to client

GlobalExceptionHandlerProblemDetails.cs

using Microsoft.AspNetCore.Diagnostics;
using Microsoft.AspNetCore.Mvc;
using System.Net;

namespace Samples;

public class GlobalExceptionHandler(ILogger<GlobalExceptionHandler> logger) : IExceptionHandler 
{
    public async ValueTask<bool> TryHandleAsync(
          HttpContext httpContext, 
          Exception exception, 
          CancellationToken cancellationToken)
    {
        var exceptionMessage = exception.Message;
        logger.LogError(exception,
          "Error Message: {exceptionMessage}, Time of occurrence {time}",
          exceptionMessage, DateTime.UtcNow);
        
        // Return RFC 7807 - compliant payload to the client
        httpContext.Response.StatusCode = (int)HttpStatusCode.BadRequest;
        await httpContext.Response.WriteAsJsonAsync(new ProblemDetails
        {
            Title = "An error occurred",
            Detail = exception.Message,
            Type = exception.GetType().Name,
            Status = (int)HttpStatusCode.BadRequest
        }, cancellationToken: cancellationToken);

        // Return false to continue with the default behavior
        // - or - return true to signal that this exception is handled
        return true;
    }
}

//Program.cs ...
//var builder = WebApplication.CreateBuilder(args);
//builder.Services.AddProblemDetails();

//var app = builder.Build();
//app.UseStatusCodePages();

//app.Run();