admin/Azaion.Api/BusinessExceptionHandler.cs

using Microsoft.AspNetCore.Diagnostics;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;

namespace Azaion.Common;

public class BusinessExceptionHandler(ILogger<BusinessExceptionHandler> logger) : IExceptionHandler
{
    public async ValueTask<bool> TryHandleAsync(HttpContext httpContext, Exception exception, CancellationToken cancellationToken)
    {
        if (exception is not BusinessException ex)
            return false;

        logger.LogWarning(exception, ex.Message);
        httpContext.Response.StatusCode = StatusCodes.Status409Conflict;
        httpContext.Response.ContentType = "application/json";

        var err = JsonConvert.SerializeObject(new
        {
            ErrorCode = ex.ExceptionEnum,
            ex.Message
        });
        await httpContext.Response.WriteAsync(err, cancellationToken).ConfigureAwait(false);
        return true;
    }
}