nopsolutions / paypalexpress-plugin-for-nopcommerce

nopCommerce plugin for PayPal Express (payments)

nopCommerce PayPal Express plugin

nopCommerce site: https://www.nopcommerce.com

Listing on nopCommerce "extensions and themes" catalog: https://www.nopcommerce.com/paypal-express-payment-plugin

PayPal site: https://www.paypal.com

PayPal Express: Express Checkout API Getting Started Guide

paypalexpress-plugin-for-nopcommerce's Issues

IPNHandler 403 Forbidden

Hi,
This a going on problem in the PaypalExpressCheckout and PaypalStandart plugins.
You can see this link about issue: https://www.nopcommerce.com/boards/t/32372/paypal-standard-live-mode-ipn-pdt-verification-return-403-forbidden.aspx#131933

Country restrictioms are ignored

if PayPal Express checkout is restricted (on the payment method restrictions page – check all countries) it shows up anyway and can be used.

Source: http://www.nopcommerce.com/p/1149/paypal-express-payment-plugin-nopcommerce-team.aspx (reviews)

Terms of services can be ignored when checking out if on cart and it does not show up on the confirm page.

Currency Conversion Error

Hi there,
My shop current Currency is GBP. All product prices put with gbp, but when i use paypal sandbox i have problem. For example my item price 270gbp, when i change my shop curreny to usd its changed via 353usd but when i order via paypal express its reduced to 270usd.

And if i order with still in GBP currecy, paypal express is reduced to 206usd.

So PayPal express plugin always exchange price usd->gbp, but finall currecy is usd.
CAn you help me please?

Can i use it for develop branc?

nopSolutions/nopCommerce@09c24ae
Can i use that plugin with 4.30 develop branch?

Checkout Validation is not present

Clicking the Paypal button at the bottom of the Cart page, initiates a number of steps, but it does not run the code from _shoppingCartService.GetShoppingCartWarnings.

It validates the Terms of Service link was clicked from an Onclick function, but by ignoring Checkout Attribute requirements, it fails to complete the checkout as it later validates the order but the required items are not available to edit and you can not move forward.

Has anyone incorporated the checkout validation into their own code?

Anonymous checkout allowed” and “Require registration for downloadable products” issue

If “Anonymous checkout allowed” is checked on AND “Require registration for downloadable products” is checked on and you add a downloadable product to the cart you can check out anonymously with Paypl Exress

Source: http://www.nopcommerce.com/p/1149/paypal-express-payment-plugin-nopcommerce-team.aspx (reviews)

"Index was out of range" error

If you have two tabs open and are logged in for both, then add to cart and go to cart. On the second tab logout. Now on the cart click the paypal express....... Boom chicka Boom it crashes Nopcommerce.
Short Error: (I can give you the long one if you want). "Index was ouSystem.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index"

Source: http://www.nopcommerce.com/p/1149/paypal-express-payment-plugin-nopcommerce-team.aspx (reviews)

Bug when using currency other than primary currency

When checking out using any currency other than the primary currency, the primary currency value is sent to PayPal with the currency that the user checked out in. So the user can checkout in GBP for example (with EUR the base currency). The EUR value is sent to PayPal but the currency sent is GBP.

For example, one product might cost €1.00 or £0.88. If I checkout in GBP £1.00GBP is sent to PayPal instead of £0.88GBP. This bug renders the plugin unusable on multi-currency website.

Bug exists on nopCommerce 3.5 (may exist on other versions too).

Empty Cart with Chrome

If using Chrome, unless the customer is signed in, when the customer returns to the checkout confirm page, the shopping cart is empty and customer cannot complete purchase.

Using IE and Microsoft Edge, and no issue. Just in Chrome does this behavior occur. Only when customer has not logged into storefront as well.

Remove deprecated values from the DoCapture API calls

Later this month, we will be deprecating three values from the DoCapture API calls. These three values will no longer be returned in the API response:

TAXAMT
TRANSACTIONTYPE
RECEIPTID

Could you please look into your logic for the Express Checkout module to determine if you are doing anything with these values from the DoCapture response? If so, let’s sync up to discuss action plan.

For details, see the NVP 9https://developer.paypal.com/docs/classic/api/merchant/DoCapture_API_Operation_NVP/) and SOAP (https://developer.paypal.com/docs/classic/api/merchant/DoCapture_API_Operation_SOAP/) documentation.

JS error allows multiple orders

The following line needs to be updated to <script asp-location="Footer"> to fix the disabling of the confirmation button on submit.

paypalexpress-plugin-for-nopcommerce/Nop.Plugin.Payments.PayPalExpressCheckout/Views/Confirm.cshtml

Line 16 in 177450a

<script type="text/javascript">

This client side issue also highlights an issue with the PayPalExpressCheckoutService IsMinimumOrderPlacementIntervalValidAsync method that should be checking for duplicate orders. When debugging locally I can see that the SearchOrdersAsync is not returning the first order during the PlaceOrder for the second order. I can't work out why, maybe caching or async has stopped it working as it was originally intended?

NopCommerce Version - 4.40.4
PayPalExpress plugin version - 1.36

Repro steps (before fixing the js)

1. Proceed through the PayPal Express checkout process including the PayPal sandbox.
2. When PayPal returns you to the nop checkout, go to the Confirm page
3. Click the Confirm button multiple times quickly

PayPal Express plugin. Refunds with different currency codes

Same issue as in Smart Buttons.

Specifically, we should send the RefundTransactionReq to PayPal with the store's default currency, not the order's currency. This occurs here.

Please update for nopCommerce 3.80

Curious as to why this plug-in was not updated for the 3.80 release. Any word on when that will be?

error

error ubuntu 19.04

Redis is not supported

Paypal express will not work correctly on a Cluster Server with Redis. It crashes Nopcommerce when trying to confirm order.
Short Error: (I can give you the long one if you want). "Type 'System.Xml.XmlElement' in Assembly 'System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' is not marked as serializable."

Source: http://www.nopcommerce.com/p/1149/paypal-express-payment-plugin-nopcommerce-team.aspx (reviews)

Object Reference Not Set Error When Product Attribute is Present

PaypalExpressCheckout .RequiresShipping() method calls (there are 3 in the project) should pass .RequiresShipping(_productService, _productAttributeParser) from nopcommerce 4.0 instead of passing nothing.

If nothing is passed, an object reference exception is called in ShoppingCartItemExtensions.IsShipEnabled because it does not check _productService if null but uses it. This happens if a product has attributes. This error happens after logging in Paypal and continuing to pay to redirect it back to the website to confirm.

This bug happens in the CheckMoneyOrder Plugin as well as it calls the same method without passing anything.

Amounts are invalid

nopCommerce version: 4.6

An error occurred setting up your cart for PayPal.

Error passing cart to PayPal
Full message
10401: Order total is invalid., 10426: Item total is invalid., 10427: Shipping total is invalid., 10429: Tax total is invalid., 10431: Item amount is invalid.

GetUnitPrice and Product attribute is not found

Hi there your plugin is not work because this commit is changed IPriceCalculationService.cs and
Libraries\Nop.Core\Domain\Orders\ShoppingCartItem.cs is changed:
nopSolutions/nopCommerce@f021d40#diff-e8597244943333e21392f60732ef172aL72

please fix it with latest commit on original nopCommerce.

Best Regards

Paypal express check out plugin not working nopcommerce version 4.4

I configured Paypal Express in Sandbox mode (incl. Sandbox Account) and get the following error message during checkout:

1. Log Entry:
   Short: SetExpressCheckoutResponseType returned - Part 1 of 1
   Full:
   {"Token":null,"Timestamp":"2020-11-17T21:06:25Z","TimestampSpecified":true,"Ack":1,"CorrelationID":"6ed6591ef27b","Errors":[{"ShortMessage":"Transaction refused because of an invalid argument. See additional error messages for details.","LongMessage":"Order total is invalid.","ErrorCode":"10401","SeverityCode":1,"ErrorParameters":null},{"ShortMessage":"Transaction refused because of an invalid argument. See additional error messages for details.","LongMessage":"Item total is invalid.","ErrorCode":"10426","SeverityCode":1,"ErrorParameters":null},{"ShortMessage":"Transaction refused because of an invalid argument. See additional error messages for details.","LongMessage":"Shipping total is invalid.","ErrorCode":"10427","SeverityCode":1,"ErrorParameters":null},{"ShortMessage":"Transaction refused because of an invalid argument. See additional error messages for details.","LongMessage":"Tax total is invalid.","ErrorCode":"10429","SeverityCode":1,"ErrorParameters":null},{"ShortMessage":"Transaction refused because of an invalid argument. See additional error messages for details.","LongMessage":"Item amount is invalid.","ErrorCode":"10431","SeverityCode":1,"ErrorParameters":null}],"Version":"98.0","Build":"55058010","Any":null}

2. Log Entry:
   Short: Error passing cart to PayPal
   Full: 10401: Order total is invalid., 10426: Item total is invalid., 10427: Shipping total is invalid., 10429: Tax total is invalid., 10431: Item amount is invalid.

Error code 10486 not returning to PayPal

when user selects a different address on PayPal then what he selected in checkout on website, or if card gets declined, PayPal will issue a 10486 Error and we need to reroute the customer back to his paypal account where he can see exactly what went wrong and fix, as of now it doesnt reroute the customer back to paypal.

https://developer.paypal.com/docs/classic/express-checkout/ht_ec_fundingfailure10486/

this is the error that we get from PayPal
Error while placing order. Error 1: Payment error: LongMessage: This transaction couldn't be completed. Please redirect your customer to PayPal. ShortMessage: This transaction couldn't be completed. ErrorCode: 10486 . Error 2: Payment error: .

Error on PayPal Express plugin

Log level: Warning
Short message: Value cannot be null. Parameter name: value
Full message: System.ArgumentNullException: Value cannot be null.
Parameter name: value
at Microsoft.AspNetCore.Session.DistributedSession.Set(String key, Byte[] value)at Nop.Plugin.Payments.PayPalExpressCheckout.Services.PayPalExpressCheckoutPlaceOrderService.PlaceOrder()

source: https://www.nopcommerce.com/boards/t/50822/paypal-express-by-nopcommerce-plugin-error.aspx

Duplicate orders issue, orders are paid by Paypal express

Hi,
I found an issue related to checkout. For example, if customers open two tabs of same checkout page, and click confirm order in both tabs (btw, orders are paid by PayPal express plugin) almost at the same time, Nopcommerce will create two orders which are duplicated, and both two orders would be marked as Paid in Nopcommerce, but actually based on the response message received from Paypal, first order will receive both success and error responses, the second order does not have any Paypal message.

The success message is understandable, and the error message shows
..."Errors":[{"ShortMessage":"Duplicate Request","LongMessage":"A successful transaction has already been completed for this token.","ErrorCode":"11607"...

I know the possibility of this case maybe very small, but it has happened several times on our store. I dont know how the customer caused this problem exactly, but in the way I described above, I can reproduce this issue.

My question is how to prevent this issue? Is this a case would be improved in the future?

Thanks.

Moved from nopSolutions/nopCommerce#5131

Paypal express states that the method used in this plugin is now discontinued

Paypal express states that the method used in this plugin is now discontinued. https://developer.paypal.com/docs/integration/direct/express-checkout/integration-jsv4/

https://developer.paypal.com/docs/archive/nvp-soap-api/#express-checkout

PayPal Express Plugin problem

I have admin area > configuration > settings > shipping settings configured and all warehouses have address setup. Yet, I am seeing the following error when I try to use Express checkout. I can checkout just fine with all other payment methods.

"An error occurred setting up your cart for PayPal."

I find the following error messages in the Log:
SetExpressCheckoutResponseType returned - Part 1 of 1
Error passing cart to PayPal
Shipping (USPS (US Postal Service)). Shipping address is not set
Shipping (FedEx). Shipping address is not set

Originally posted at nopSolutions/nopCommerce#2765