Paypal Standard PDTHandler Error

Hi,

When paying with PayPal the auto-return URL to the PDTHandler displays an internal error page. However, if I press F5 to refresh the page then the customer confirmation page is displayed.

The error within the logs is the following:
One or more errors occurred. (A task was canceled.)

System.AggregateException: One or more errors occurred. (A task was canceled.) ---> System.Threading.Tasks.TaskCanceledException: A task was canceled.
   --- End of inner exception stack trace ---
   at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
   at Nop.Plugin.Payments.PayPalStandard.PayPalStandardPaymentProcessor.GetPdtDetails(String tx, Dictionary`2& values, String& response)
   at Nop.Plugin.Payments.PayPalStandard.Controllers.PaymentPayPalStandardController.PDTHandler()
   at lambda_method(Closure , Object , Object[] )
   at Microsoft.AspNetCore.Mvc.Internal.ActionMethodExecutor.SyncActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)

I have set up the Paypal Standard plugin, entering the PayPal email and the PDT identity token taken from PayPal.

I have turned on 'Auto return' within PayPal and entered my PDT handler as such: https://www.mysite.co.uk/Plugins/PaymentPayPalStandard/PDTHandler

Payment data transfer has also been set to 'On' within PayPal.

I'm not really sure what the error is or how I should proceed with trying to fix this.

Any help or advice would be greatly appreciated.

Thanks.

What version nopCommerce and what version plugin ?
Was it working and just stopped working
or you are just trying to get it to work for first time ?

Hi Yidna,

PayPal standard is at version 1.55
nopCommerce is at version 4.20

It was working not long ago as I had tested this with live purchases and it was working.

Thanks.

Okay, looks like I found the issue.

The error was being thrown at

var response = await _httpClient.PostAsync(url, requestContent);

Essentially the request was timing out. I had a look at the httpClient and it is set to timeout after 5 seconds.

client.Timeout = TimeSpan.FromMilliseconds(5000);

It would appear that sometimes a timeout would occur and other times not, hence why it worked before and not now.

For now, I have increased the timeout and I'm getting no more errors.

Thanks.

Hi,

It seems I am also facing this problem. I have recently setup a new store and am using paypal standard in sandbox mode. I get the same error as you but I can't find the timeout set in the code?

Where exactly did you change?

Using same version as you also.

Hi. Good find! Having the same issue. Which file exactly did you access to increase the timeout time?

callist wrote:

Have a look at source\Plugins\Nop.Plugin.Payments.PayPalStandard\Services\PayPalStandardHttpClient.cs

Thanks you for this. I am running 3.50.

When I go into the Plugins folder, I see Payments.PayPalStandard. When I go into that folder, there is no "services". There is "Views" (folder) and several files but none are called "PayPalStandardHttpClient.cs"

If I go into the "Views" folder, I see another folder called "PaymentPayPalDirect". There is a "configure" CS file and a PaymentInfo CS file.

There are two files with similar names:
Nop.Plugin.Payments.PayPalDirect.dll
Nop.Plugin.Payments.PayPalDirect.dll.config

Yidna wrote:

Sorry I was refering to the latest source version.
Dont know about v3.5 I cannot see a timout in that code

OK. Thanks again!

Yidna wrote: