The type 'System.Object' is not a supported dictionary key using converter of type 'System.Text.Json.Serialization.Converters.DefaultObjectConverter' #8695

5 Answer(s)

• 

  0

  liangshiwei created one year ago

  Fullstack Developer

  Hi,

  We will check it

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  0

  liangshiwei created one year ago

  Fullstack Developer

  Hi,

  I can't reproduce the problem

  public class TestAppService : Test8688AppService
  {
      
      public string Test()
      {
          var ex = new UserFriendlyException("test");
          ex.Data["Test"] = new object();
          JsonSerializer.Serialize(ex);   
          throw ex;
      }
  }
  

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  rahul.patel@parsus.com created one year ago

  Try setting the dictionary key to ‘new object()’ just like the snapshot debugger is doing. Example:

              var ex = new UserFriendlyException("UserFriendlyException on purpose");
              ex.Data[new object()] = "foobar";
  

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  rahul.patel@parsus.com created one year ago

  Workaround that seems to resolve the issue

      [Dependency(ReplaceServices = true)]
      public class CustomExceptionToErrorInfoConverter : DefaultExceptionToErrorInfoConverter
      {
          public CustomExceptionToErrorInfoConverter(
              IOptions<AbpExceptionLocalizationOptions> localizationOptions, 
              IStringLocalizerFactory stringLocalizerFactory, 
              IStringLocalizer<AbpExceptionHandlingResource> stringLocalizer, IServiceProvider serviceProvider) 
              : base(localizationOptions, stringLocalizerFactory, stringLocalizer, serviceProvider)
          {
          }
  
          protected override RemoteServiceErrorInfo CreateErrorInfoWithoutCode(Exception exception, AbpExceptionHandlingOptions options)
          {
              var result = base.CreateErrorInfoWithoutCode(exception, options);
              MakeSerializationSafe(result);
              return result;
          }
  
          protected virtual void MakeSerializationSafe(RemoteServiceErrorInfo info)
          {
              var oldData = info.Data;
  
              // Create new dictionary so we're not attached to original Exception.Data which 
              // can be manipulated by Application Insights Snapshot Debugger
              info.Data = new Dictionary<object, object>();
  
              // Copy any existing values, converting object keys to string
              if (oldData != null)
              {
                  foreach (var key in oldData.Keys)
                  {
                      var newKey = key;
                      if (key.GetType() == typeof(object))
                      {
                          // Key is of type object which can't be serialized
  
                          // Convert to string
                          newKey = key.ToString();
  
                          if (info.Data.Contains(newKey))
                          {
                              // Dictionary already contains this new key, appending Guid to make it unique
                              newKey = $"{newKey}_{Guid.NewGuid()}";
                          }
                      }
  
                      info.Data[newKey] = oldData[key];
                  }
              }            
          }
      }
  

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  0

  liangshiwei created one year ago

  Fullstack Developer

  Hi,

  Try setting the dictionary key to ‘new object()’ just like the snapshot debugger is doing. Example:

  I will check if it is a bug of ABP.

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