[2.4.5] Incorrect carrier/method code on selected shipping method in GraphQL

[DuckThom]

Preconditions and environment

• Magento 2.4.5
• GraphQL modules are enabled

Steps to reproduce

1. Set a shipping address on the cart which has an available shipping method with an underscore in the carrier (ie. sendcloud_checkout)
2. Set the shipping method on the cart
3. Compare the carrier and method codes in available_shipping_methods and selected_shipping_method on the cart.shipping_addresses[0] object returned by GraphQL

GraphQL query:

query {
    cart(cart_id: "<cart_id>") {
        shipping_addresses {
            selected_shipping_method {
                carrier_code
                method_code
            }
            available_shipping_methods {
                carrier_code
                method_code
            }
        }
    }
}

Expected result

The returned selected_shipping_method matches with one of the available_shipping_methods carrier and method codes.

Result based on above query:

{
    "data": {
        "cart": {
            "shipping_addresses": [
                {
                    "selected_shipping_method": {
                        "carrier_code": "sendcloud_checkout",
                        "method_code": "ddc961a8-1824-40ab-88a9-392f2f58e3b5"
                    },
                    "available_shipping_methods": [
                        {
                            "carrier_code": "sendcloud_checkout",
                            "method_code": "ddc961a8-1824-40ab-88a9-392f2f58e3b5"
                        }
                    ]
                }
            ]
        }
    }
}

Actual result

There is a mismatch between the carrier/method codes in the selectedShippingMethod and availableShippingMethods.

Result based on above query:

{
    "data": {
        "cart": {
            "shipping_addresses": [
                {
                    "selected_shipping_method": {
                        "carrier_code": "sendcloud",
                        "method_code": "checkout_ddc961a8-1824-40ab-88a9-392f2f58e3b5"
                    },
                    "available_shipping_methods": [
                        {
                            "carrier_code": "sendcloud_checkout",
                            "method_code": "ddc961a8-1824-40ab-88a9-392f2f58e3b5"
                        }
                    ]
                }
            ]
        }
    }
}

Additional information

The shipping method is saved on the quote as method.carrierCode + '_' + method.methodCode

In the resolver for the selected_shipping_method field, the following line is present:

magento2/app/code/Magento/QuoteGraphQl/Model/Resolver/ShippingAddress/SelectedShippingMethod.php

Line 53 in ea0cf63

list($carrierCode, $methodCode) = explode('_', $address->getShippingMethod(), 2);

This will split on the first underscore, which is not correct.

Possible solution:

diff --git a/vendor/magento/module-quote-graph-ql/Model/Resolver/ShippingAddress/SelectedShippingMethod.php b/vendor/magento/module-quote-graph-ql/Model/Resolver/ShippingAddress/SelectedShippingMethod.php
--- a/vendor/magento/module-quote-graph-ql/Model/Resolver/ShippingAddress/SelectedShippingMethod.php	
+++ b/vendor/magento/module-quote-graph-ql/Model/Resolver/ShippingAddress/SelectedShippingMethod.php
@@ -38,11 +38,11 @@
             return null;
         }
 
-        list($carrierCode, $methodCode) = explode('_', $address->getShippingMethod(), 2);
-
         /** @var Rate $rate */
         foreach ($rates as $rate) {
             if ($rate->getCode() == $address->getShippingMethod()) {
+                $carrierCode = $rate->getCarrier();
+                $methodCode = $rate->getMethod();
                 $carrierTitle = $rate->getCarrierTitle();
                 $methodTitle = $rate->getMethodTitle();
                 break;

Release note

No response

Triage and priority

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.

[m2-assistant]

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[m2-assistant]

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[engcom-November]

Hi @DuckThom ,
Thank you for reporting and collaboration. As per Magento devdocs , Graphql supports only below shipping methods by default.
and none of the shipping methods have underscore in carrier code to reproduce the issue. Also sendcloud is a 3rd party package and code of the extension is not part of Magento git repository. Community cannot able to provide fix for it in this repository. All questions, issue reports and fix for them should be addressed to the corresponding extension owners(support) on the Magento Market place page. Kindly recheck the issue on Magento 2.4-develop instance with Graphql supported shipping methods and provide missing steps if the issue is still reproducible.
Thank you.

[DuckThom]

I agree that the built-in carriers do not use underscores in the codes, however, it's not mentioned anywhere what the allowed characters are for custom carriers.

IMO, it would be better if it was either mentioned in the dev docs what the allowed characters are or if some validation is added perhaps. As right now, it can lead to cases such as this one where unexpected data is returned.

[engcom-November]

Hi @DuckThom ,
Verified the issue again on Magento 2.4-develop instance using custom shipping method using both with / without underscore in carrier code and the issue is reproducible. Hence updating the description and confirming the issue.
Scenario 1: Custom shipping method created without underscore in carrier code. No issue. Graphql response retrieved as expected. Method displayed in "available_shipping_methods" and "selected_shipping_method"

Scenario 2: Custom shipping method created with underscore in carrier code. Issue: Underscore is missing in Graphql response and the method is not displayed in "available_shipping_methods".

[github-jira-sync-bot]

✅ Jira issue https://jira.corp.adobe.com/browse/AC-7550 is successfully created for this GitHub issue.

[m2-assistant]

✅ Confirmed by @engcom-November. Thank you for verifying the issue.
Issue Available: @engcom-November, You will be automatically unassigned. Contributors/Maintainers can claim this issue to continue. To reclaim and continue work, reassign the ticket to yourself.

[github-jira-sync-bot]

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[Vasudev-22]

@magento I am working on this

[engcom-November]

Hi @DuckThom ,
Development team is currently working on this issue.
Thank you.

[engcom-Hotel]

Hello,

As I can see this issue got fixed in the scope of the internal Jira ticket AC-7550 by the internal team
Related commits: https://github.com/magento/magento2/search?q=AC-7550&type=commits

Based on the Jira ticket, the target version is 2.4.7-beta1.

Thanks

[hostep]

@engcom-Hotel: either you made a typo, or the info from Jira is incorrect, because those fixes are not included in Magento 2.4.6? It's probably going to be included in 2.4.7(-beta1)?

[engcom-Hotel]

Hello @hostep,

That was a typo, I corrected it.

Thanks