Real-Time Web Application Development by Rami Vemula

Author:Rami Vemula
Language: eng
Format: epub
Publisher: Apress, Berkeley, CA

Create a class named CustomExceptionFilter in the Filters folder of the ASC.Web project. Inherit the class from ExceptionFilterAttribute , as shown in Listing 8-18. The ILogger instance is injected through the constructor that is used in the OnExceptionAsync method to log the exception details to Azure Table storage. Once an exception has been logged, a custom error view will be presented to the user. IModelMetadataProvider is also required to initiate ViewDataDictionary for the Error view.

public class CustomExceptionFilter : ExceptionFilterAttribute

{

private readonly ILogger<CustomExceptionFilter> _logger;

private readonly IModelMetadataProvider _modelMetadataProvider;

public CustomExceptionFilter(ILogger<CustomExceptionFilter> logger, IModelMetadataProvider modelMetadataProvider)

{

_logger = logger;

_modelMetadataProvider = modelMetadataProvider;

}

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