public Task HandleAsync(ExceptionContext context)
{
var category = _exceptionCategorizer.Categorizer(context.Exception);
dynamic response = new ExpandoObject();
response.System = new Dictionary<string, string>();
response.System["Tracking Id"] = Guid.NewGuid().ToString();
response.System["Timestamp"] = DateTimeOffset.Now.ToString();
response.System["Message"] = category.ErrorMessage;
response.System["Execution"] = "Global";
if(context.Context.Request != null)
{
response.System["Execution"] = "Request";
response.Developer = new Dictionary<string, string>();
response.Developer["RequestMethod"] = context.Context.Request.Method;
response.Developer["Uri"] = $"{context.Context.Request.Scheme}:{context.Context.Request.Host}{context.Context.Request.Path}";
response.Developer["ExceptionType"] = context.Exception.GetType().FullName;
response.Developer["StackTrace"] = context.Exception.StackTrace.Trim();
}
context.Context.Items["exception.category"] = category;
context.Context.Items["exception.response"] = response;
return Task.FromResult(0);
}
/// <summary>
/// Intercepts the specified context.
/// </summary>
/// <param name="context">The context.</param>
/// <returns></returns>
/// <exception cref="System.AggregateException"></exception>
async Task IExceptionInterceptManager.InterceptAsync(HttpContext context)
{
var feature = context.Features.Get<IExceptionHandlerFeature>();
var exceptionContext = new ExceptionContext(context, feature?.Error);
var handlerExecutionExceptions = new List<Exception>();
try
{
foreach (var handlers in _exceptionIntercepts)
{
try
{
await handlers.HandleAsync(exceptionContext);
}
catch (Exception ex)
{
handlerExecutionExceptions.Add(ex);
}
}
}
catch(Exception ex)
{
handlerExecutionExceptions.Add(ex);
}
finally
{
if (handlerExecutionExceptions.Any())
{
throw new AggregateException(handlerExecutionExceptions);
}
}
}
public async Task HandleAsync(ExceptionContext context)
{
var category = (ExceptionCategory)context.Context.Items["exception.category"];
dynamic response = context.Context.Items["exception.response"];
dynamic finalResponse = category.DeveloperMode ? response : response.System;
context.Context.Response.StatusCode = (int)category.HttpStatus;
context.Context.Response.ContentType = "application/json";
await context.Context.Response.WriteAsync((string)JsonConvert.SerializeObject(finalResponse));
}
public Task HandleAsync(ExceptionContext context)
{
var category = (ExceptionCategory)context.Context.Items["exception.category"];
if (category.Category == ExceptionCategoryType.Unhandled)
{
dynamic response = context.Context.Items["exception.response"];
// log whatever to the JIRA for production issue tracking
}
return Task.FromResult(0);
}
public Task HandleAsync(ExceptionContext context)
{
var category = (ExceptionCategory)context.Context.Items["exception.category"];
if (category.Category == ExceptionCategoryType.Unhandled)
{
dynamic response = context.Context.Items["exception.response"];
// log whatever to the Database
// Note: Application Insights may be a more attractive analytical logger than rolling your own.
}
return Task.FromResult(0);
}
public async Task HandleAsync(ExceptionContext context)
{
// sample response
var response = new
{
TicketId = Guid.NewGuid(),
Timestamp = DateTime.UtcNow.ToString(),
Message = "You are unauthorized to access this resource."
};
context.Context.Response.StatusCode = (int)HttpStatusCode.Forbidden;
context.Context.Response.ContentType = "application/json";
await context.Context.Response.WriteAsync(JsonConvert.SerializeObject(response));
}
public Task HandleAsync(ExceptionContext context)
{
_logger.LogDebug($"Logging '{context.Exception?.Message}' from '{this.GetType().FullName}'.");
return Task.FromResult(0);
}
public Task HandleAsync(ExceptionContext context)
{
return Task.FromResult(0);
}