Custom ErrorHandler middleware for ASP.Net core API

ExceptionHandler.cs

using System;
using System.Net;
using System.Threading.Tasks;
using Newtonsoft.Json;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Hosting;

namespace thetalentbot.JobSeeker.Exceptions
{
    public class ExceptionHandler
    {
        private readonly RequestDelegate _next;

        public ExceptionHandler(RequestDelegate next)
        {
            this._next = next;
        }

        public async Task Invoke(HttpContext context, IHostingEnvironment env)
        {
            try
            {
                await _next(context);
            }
            catch (Exception ex)
            {
                await HandleExceptionAsync(context, env, ex);
            }
        }

        private static Task HandleExceptionAsync(HttpContext context, IHostingEnvironment env, Exception exception)
        {
            string result;
            var code = HttpStatusCode.InternalServerError;

            if (env.IsDevelopment())
            {
                var errorMessage = new
                {
                    error = exception.Message,
                    stack = exception.StackTrace,
                    innerException = exception.InnerException
                };
                
                result = JsonConvert.SerializeObject(errorMessage);
            }
            else
            {                
                var errorMessage = new
                {
                    error = exception.Message                    
                };
                
                result = JsonConvert.SerializeObject(errorMessage);
            }

            context.Response.ContentType = "application/json";
            context.Response.StatusCode = (int)code;
            return context.Response.WriteAsync(result);
        }

    }
}