public void OnActionExecuted(ActionExecutedContext context)
{
Exception exceptionResult = null;
object resultObject = null;
Type destinationType = null;
var filterDescriptor = context
.ActionDescriptor
.FilterDescriptors
.SingleOrDefault(d => d.Filter.GetType() == typeof(ExpandResultAttribute));
if (!_expandAllEndpoints)
{
//Cast the filter property to ExpandResultAttribute
var attributeInstance = filterDescriptor?.Filter as ExpandResultAttribute;
//If the attribute is null, i.e. not present, or false, it shouldn't expand and we return here
if (!(attributeInstance?.ShouldExpand ?? false))
{
return;
}
}
if (filterDescriptor != null)
{
destinationType = ((ExpandResultAttribute)filterDescriptor.Filter).DestinationType;
}
var doNotExpandAttribute = context
.ActionDescriptor
.FilterDescriptors
.SingleOrDefault(d => d.Filter.GetType() == typeof(DoNotExpandResultAttribute));
if (doNotExpandAttribute != null)
{
return;
}
// Set the error out of the gate should something have gone wrong coming into Popcorn
if (context.Exception != null)
{
exceptionResult = context.Exception;
if (context.HttpContext.Response.StatusCode == 200)
{
context.HttpContext.Response.StatusCode = 500;
}
context.ExceptionHandled = true; // Setting this so the inspector is still respected
}
else if (context.Result is ObjectResult) // Disect the response if there is something to unfold and no exception
{
resultObject = ((ObjectResult)context.Result).Value;
// Wrap the main work here in a try/catch that we can then pass to our inspector
try
{
if (_expander.WillExpand(resultObject))
{
// see if we can find some include statements
string includes = "[]";
if (context.HttpContext.Request.Query.ContainsKey("include"))
{
includes = context.HttpContext.Request.Query["include"];
}
else if (context.HttpContext.Request.Headers?.ContainsKey("API-INCLUDE") ?? false)
{
includes = context.HttpContext.Request.Headers["API-INCLUDE"];
}
// Use our expander and expand the object
resultObject = _expander.Expand(resultObject, _context, PropertyReference.Parse(includes), destinationTypeHint: destinationType);
}
// Sort should there be anything to sort
if (resultObject != null)
{
// Assign sortDirection where necessary, but default to Ascending if nothing passed in
SortDirection sortDirection = SortDirection.Ascending;
if (context.HttpContext.Request.Query.ContainsKey("sortDirection"))
{
// Assign the proper sort direction, but invalidate an invalid value
try
{
sortDirection = (SortDirection)Enum.Parse(typeof(SortDirection), context.HttpContext.Request.Query["sortDirection"]);
}
catch (ArgumentException)
{
throw new ArgumentException(context.HttpContext.Request.Query["sortDirection"]);
}
}
// Do any sorting as specified
if (context.HttpContext.Request.Query.ContainsKey("sort"))
{
resultObject = _expander.Sort(resultObject, context.HttpContext.Request.Query["sort"], sortDirection);
}
}
}
catch (Exception e)
{
exceptionResult = e;
// Set the response code as appropriate for a caught error
context.HttpContext.Response.StatusCode = 500;
}
}
else
{
return;
}
// Apply our inspector to the expanded content
if (_inspector != null)
{
resultObject = _inspector(resultObject, _context, exceptionResult);
}
else if (exceptionResult != null) // Have to rethrow the error if there is no inspector set so as to not return false positives
{
throw exceptionResult;
}
context.Result = new JsonResult(resultObject, _jsonOptions);
}
public override void OnActionExecuted(ActionExecutedContext context)
{
Exception exceptionResult = null;
object resultObject = null;
// Set the error out of the gate should something have gone wrong coming into Popcorn
if (context.Exception != null)
{
exceptionResult = context.Exception;
if (context.HttpContext.Response.StatusCode == 200)
{
context.HttpContext.Response.StatusCode = 500;
}
context.ExceptionHandled = true; // Setting this so the inspector is still respected
}
else if (context.Result is ObjectResult) // Disect the response if there is something to unfold and no exception
{
resultObject = ((ObjectResult)context.Result).Value;
// Wrap the main work here in a try/catch that we can then pass to our inspector
try
{
if (_expander.WillExpand(resultObject))
{
// see if we can find some include statements
string includes = "[]";
if (context.HttpContext.Request.Query.ContainsKey("include"))
{
includes = context.HttpContext.Request.Query["include"];
}
else if (context.HttpContext.Request.Headers?.ContainsKey("API-INCLUDE") ?? false)
{
includes = context.HttpContext.Request.Headers["API-INCLUDE"];
}
// Use our expander and expand the object
resultObject = _expander.Expand(resultObject, _context, PropertyReference.Parse(includes));
}
// Sort should there be anything to sort
if (resultObject != null)
{
// Assign sortDirection where necessary, but default to Ascending if nothing passed in
SortDirection sortDirection = SortDirection.Ascending;
if (context.HttpContext.Request.Query.ContainsKey("sortDirection"))
{
// Assign the proper sort direction, but invalidate an invalid value
try
{
sortDirection = (SortDirection)Enum.Parse(typeof(SortDirection), context.HttpContext.Request.Query["sortDirection"]);
}
catch (ArgumentException)
{
throw new ArgumentException(context.HttpContext.Request.Query["sortDirection"]);
}
}
// Do any sorting as specified
if (context.HttpContext.Request.Query.ContainsKey("sort"))
{
resultObject = _expander.Sort(resultObject, context.HttpContext.Request.Query["sort"], sortDirection);
}
}
} catch (Exception e)
{
exceptionResult = e;
// Set the response code as appropriate for a caught error
context.HttpContext.Response.StatusCode = 500;
}
}
// Apply our inspector to the expanded content
if (_inspector != null)
{
resultObject = _inspector(resultObject, _context, exceptionResult);
}
else if (exceptionResult != null) // Have to rethrow the error if there is no inspector set so as to not return false positives
{
throw exceptionResult;
}
context.Result = new JsonResult(resultObject,
new JsonSerializerSettings
{
NullValueHandling = NullValueHandling.Ignore
});
base.OnActionExecuted(context);
}
