server/src/Admin/Models/LogModel.cs

using System.Collections.Generic;
using Microsoft.Azure.Documents;
using Newtonsoft.Json.Linq;

namespace Bit.Admin.Models
{
    public class LogModel : Resource
    {
        public long EventIdHash { get; set; }
        public string Level { get; set; }
        public string Message { get; set; }
        public string MessageTruncated => Message.Length > 200 ? $"{Message.Substring(0, 200)}..." : Message;
        public string MessageTemplate { get; set; }
        public IDictionary<string, object> Properties { get; set; }
        public string Project => Properties?.ContainsKey("Project") ?? false ? Properties["Project"].ToString() : null;
    }

    public class LogDetailsModel : LogModel
    {
        public JObject Exception { get; set; }

        public string ExceptionToString(JObject e)
        {
            if(e == null)
            {
                return null;
            }

            var val = string.Empty;
            if(e["Message"] != null && e["Message"].ToObject<string>() != null)
            {
                val += "Message:\n";
                val += e["Message"] + "\n";
            }

            if(e["StackTrace"] != null && e["StackTrace"].ToObject<string>() != null)
            {
                val += "\nStack Trace:\n";
                val += e["StackTrace"];
            }
            else if(e["StackTraceString"] != null && e["StackTraceString"].ToObject<string>() != null)
            {
                val += "\nStack Trace String:\n";
                val += e["StackTraceString"];
            }

            if(e["InnerException"] != null && e["InnerException"].ToObject<JObject>() != null)
            {
                val += "\n\n=== Inner Exception ===\n\n";
                val += ExceptionToString(e["InnerException"].ToObject<JObject>());
            }

            return val;
        }
    }
}