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9.0.4 error log has lots of addtocart errors
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Joe Payne2  
#1 Posted : Tuesday, September 7, 2021 3:34:18 PM(UTC)
Joe Payne2

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There seems to be no way to track down this sort of MVC error. Logging the error itself is pretty much worthless. Any suggestions?

Code:

2021-09-07 15:01:29,102 ERROR AbleCommerce         An error has occured at https://www.lanshack.com/Product/AddToCart
System.ArgumentException: The parameters dictionary contains a null entry for parameter 'productId' of non-nullable type 'System.Int32' for method 'System.Web.Mvc.ActionResult AddToCart(Int32)' in 'AbleCommerce.Controllers.ProductController'. An optional parameter must be a reference type, a nullable type, or be declared as an optional parameter.
Parameter name: parameters
   at System.Web.Mvc.ActionDescriptor.ExtractParameterFromDictionary(ParameterInfo parameterInfo, IDictionary`2 parameters, MethodInfo methodInfo)
   at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
   at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass24_0.<InvokeActionMethodWithFilters>b__0()
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
   at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)
   at System.Web.Mvc.Controller.ExecuteCore()
   at System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext)
   at System.Web.Mvc.Async.AsyncResultWrapper.<>c.<.cctor>b__15_0(IAsyncResult asyncResult, Action action)
   at System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult)
   at System.Web.Mvc.MvcHandler.<>c.<BeginProcessRequest>b__20_1(IAsyncResult asyncResult, ProcessRequestState innerState)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult)
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
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shaharyar  
#2 Posted : Wednesday, September 8, 2021 3:09:35 AM(UTC)
shaharyar

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It seems that this is because some bot picking up the URLs from the page source or script files and requesting without the required parameters.

Otherwise, if there are steps to reproduce then we can track the real issue.
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Joe Payne2  
#3 Posted : Wednesday, September 8, 2021 4:59:27 AM(UTC)
Joe Payne2

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Is there no way to trap more details about the original request with the error message?

This has to be a common problem with all MVC web-based applications. Surely there's a way to get more details so devs can know if it's something that needs addressed.
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shaharyar  
#4 Posted : Wednesday, September 8, 2021 5:05:36 AM(UTC)
shaharyar

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I think there is enough detail in this error message for a developer to know.
The request being sent is without the required parameters and this is what is causing the issue.
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Joe Payne2  
#5 Posted : Wednesday, September 8, 2021 3:17:36 PM(UTC)
Joe Payne2

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Hey I came across this today in MembersController RegisterDialog()

Code:
[HandleAndLogError(typeof(HttpAntiForgeryException))]


Couldn't I build a similar one to handle that System.ArgumentException and slap it on the AddToCart method?
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