public static void UseExceptionTransformer(this IApplicationBuilder builder)
{
ExceptionTransformerFactory factory = builder
.ApplicationServices.GetService <ExceptionTransformerFactory>();
List <IExceptionTransformer> transformers = builder.ApplicationServices.GetServices <IExceptionTransformer>().ToList();
foreach (var transformer in transformers)
{
factory.AddTransformer(transformer);
}
builder.UseMiddleware <ExceptionTransformerMiddleware>();
}
public override void OnException(ExceptionContext context)
{
ExceptionTransformerFactory factory = context.HttpContext.RequestServices.
GetService(typeof(ExceptionTransformerFactory)) as ExceptionTransformerFactory;
Exception ex = context.Exception;
Console.Error.WriteLine(ex);
IExceptionTransformer transformer = factory.GetExceptionTransformer(ex.GetType());
transformer.EditContext(context.HttpContext, ex);
ErrorResponseModel error = transformer.BuildErrorModel(ex);
context.Result = new ObjectResult(error)
{
StatusCode = error.StatusCode
};
}
public ExceptionTransformerMiddleware(RequestDelegate nextDelegate, ExceptionTransformerFactory factory)
{
this.nextDelegate = nextDelegate;
this.factory = factory;
}
