Internal Server Error in /V1/carts/mine/items API Endpoint

[mlf20]

Preconditions and environment

• Magento version 2.4

Steps to reproduce

1. Retrieve auth token from the admin endpoint /V1/integration/admin/
2. Request endpoint:

curl -H 'Content-Type: application/json' -H 'Authorization: Bearer' <AUTH TOKEN> -d '{"cartItem": ""}' -X POST http://<MAGENTO_URL>/pub/rest/default/V1/carts/mine/items

Expected result

Returns a 400 error as the request is malformed.

Actual result

Returns a 500 status code from a null TypeError .

Additional information

output of var/log/system.log:

	[2022-08-10T14:35:35.712804+00:00] main.CRITICAL: TypeError: array_key_exists(): Argument #2 ($array) must be of type array, string given in /magento/vendor/magento/module-webapi/Controller/Rest/ParamsOverrider.php:122
	Stack trace:
	#0 /magento/vendor/magento/module-webapi/Controller/Rest/ParamsOverrider.php(122): array_key_exists()
	#1 /magento/vendor/magento/module-webapi/Controller/Rest/ParamsOverrider.php(68): Magento\Webapi\Controller\Rest\ParamsOverrider->setNestedArrayValue()
	#2 /magento/vendor/magento/module-webapi/Controller/Rest/InputParamsResolver.php(146): Magento\Webapi\Controller\Rest\ParamsOverrider->override()
	#3 /magento/generated/code/Magento/Webapi/Controller/Rest/InputParamsResolver/Interceptor.php(32): Magento\Webapi\Controller\Rest\InputParamsResolver->getInputData()
	#4 /magento/vendor/magento/module-webapi/Controller/Rest/InputParamsResolver.php(115): Magento\Webapi\Controller\Rest\InputParamsResolver\Interceptor->getInputData()
	#5 /magento/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Webapi\Controller\Rest\InputParamsResolver->resolve()
	#6 /magento/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Webapi\Controller\Rest\InputParamsResolver\Interceptor->___callParent()
	#7 /magento/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Webapi\Controller\Rest\InputParamsResolver\Interceptor->Magento\Framework\Interception\{closure}()
	#8 /magento/generated/code/Magento/Webapi/Controller/Rest/InputParamsResolver/Interceptor.php(23): Magento\Webapi\Controller\Rest\InputParamsResolver\Interceptor->___callPlugins()
	#9 /magento/vendor/magento/module-webapi/Controller/Rest/SynchronousRequestProcessor.php(85): Magento\Webapi\Controller\Rest\InputParamsResolver\Interceptor->resolve()
	#10 /magento/vendor/magento/module-webapi/Controller/Rest.php(188): Magento\Webapi\Controller\Rest\SynchronousRequestProcessor->process()
	#11 /magento/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Webapi\Controller\Rest->dispatch()
	#12 /magento/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Webapi\Controller\Rest\Interceptor->___callParent()
	#13 /magento/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Webapi\Controller\Rest\Interceptor->Magento\Framework\Interception\{closure}()
	#14 /magento/generated/code/Magento/Webapi/Controller/Rest/Interceptor.php(23): Magento\Webapi\Controller\Rest\Interceptor->___callPlugins()
	#15 /magento/vendor/magento/framework/App/Http.php(116): Magento\Webapi\Controller\Rest\Interceptor->dispatch()
	#16 /magento/generated/code/Magento/Framework/App/Http/Interceptor.php(23): Magento\Framework\App\Http->launch()
	#17 /magento/vendor/magento/framework/App/Bootstrap.php(264): Magento\Framework\App\Http\Interceptor->launch()
	#18 /magento/pub/index.php(30): Magento\Framework\App\Bootstrap->run()
	#19 {main} [] []

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]

Hi @mlf20. Thank you for your report.
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[m2-assistant]

Hi @engcom-November. Thank you for working on this issue.
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[engcom-November]

Hi @mlf20 ,
Thank you for reporting and collaboration. The exception mentioned in all the below issues reported by you is the similar error/ issue which is not reproducible on 2.4-develop branch. Can we close all the other issues and track in a single bug: #35934
Similar issues having same kind of exception:
#35934
#35937
#35936
#35933

We are getting a 400 error only as the request is malformed.
Kindly check Magento system requirements and 3rd party exntensions / modules enabled is causing this issue.
Kindly recheck the issue on Magento 2.4-develop branch and provide missing steps if any if you are still facing any issues.
Thank you

[mlf20]

Hi @engcom-November

My apologies, I have gone over my logs and the payload in the body should be '{"cartItem": ""}'.

This reproduces the issue as shown below:

[engcom-November]

Thanks for the update @mlf20 ,
Verified the issue again on Magento 2.4-develop branch and the issue is reproducible. Hence confirming the issue.
Exception log:

[2022-08-16T13:15:44.603949+00:00] main.CRITICAL: TypeError: array_key_exists(): Argument #2 ($array) must be of type array, string given in /var/www/html/mg24ce/magento2ce/app/code/Magento/Webapi/Controller/Rest/ParamsOverrider.php:122
Stack trace:
#0 /var/www/html/mg24ce/magento2ce/app/code/Magento/Webapi/Controller/Rest/ParamsOverrider.php(122): array_key_exists()
#1 /var/www/html/mg24ce/magento2ce/app/code/Magento/Webapi/Controller/Rest/ParamsOverrider.php(68): Magento\Webapi\Controller\Rest\ParamsOverrider->setNestedArrayValue()
#2 /var/www/html/mg24ce/magento2ce/lib/internal/Magento/Framework/Interception/Interceptor.php(58): Magento\Webapi\Controller\Rest\ParamsOverrider->override()
#3 /var/www/html/mg24ce/magento2ce/lib/internal/Magento/Framework/Interception/Interceptor.php(138): Magento\Webapi\Controller\Rest\ParamsOverrider\Interceptor->___callParent()
#4 /var/www/html/mg24ce/magento2ce/lib/internal/Magento/Framework/Interception/Interceptor.php(153): Magento\Webapi\Controller\Rest\ParamsOverrider\Interceptor->Magento\Framework\Interception\{closure}()
#5 /var/www/html/mg24ce/magento2ce/generated/code/Magento/Webapi/Controller/Rest/ParamsOverrider/Interceptor.php(23): Magento\Webapi\Controller\Rest\ParamsOverrider\Interceptor->___callPlugins()
#6 /var/www/html/mg24ce/magento2ce/app/code/Magento/Webapi/Controller/Rest/InputParamsResolver.php(146): Magento\Webapi\Controller\Rest\ParamsOverrider\Interceptor->override()
#7 /var/www/html/mg24ce/magento2ce/app/code/Magento/Webapi/Controller/Rest/InputParamsResolver.php(115): Magento\Webapi\Controller\Rest\InputParamsResolver->getInputData()
#8 /var/www/html/mg24ce/magento2ce/lib/internal/Magento/Framework/Interception/Interceptor.php(58): Magento\Webapi\Controller\Rest\InputParamsResolver->resolve()
#9 /var/www/html/mg24ce/magento2ce/lib/internal/Magento/Framework/Interception/Interceptor.php(138): Magento\Webapi\Controller\Rest\InputParamsResolver\Interceptor->___callParent()
#10 /var/www/html/mg24ce/magento2ce/lib/internal/Magento/Framework/Interception/Interceptor.php(153): Magento\Webapi\Controller\Rest\InputParamsResolver\Interceptor->Magento\Framework\Interception\{closure}()
#11 /var/www/html/mg24ce/magento2ce/generated/code/Magento/Webapi/Controller/Rest/InputParamsResolver/Interceptor.php(23): Magento\Webapi\Controller\Rest\InputParamsResolver\Interceptor->___callPlugins()
#12 /var/www/html/mg24ce/magento2ce/app/code/Magento/Webapi/Controller/Rest/SynchronousRequestProcessor.php(85): Magento\Webapi\Controller\Rest\InputParamsResolver\Interceptor->resolve()
#13 /var/www/html/mg24ce/magento2ce/app/code/Magento/Webapi/Controller/Rest.php(195): Magento\Webapi\Controller\Rest\SynchronousRequestProcessor->process()
#14 /var/www/html/mg24ce/magento2ce/lib/internal/Magento/Framework/Interception/Interceptor.php(58): Magento\Webapi\Controller\Rest->dispatch()
#15 /var/www/html/mg24ce/magento2ce/lib/internal/Magento/Framework/Interception/Interceptor.php(138): Magento\Webapi\Controller\Rest\Interceptor->___callParent()
#16 /var/www/html/mg24ce/magento2ce/lib/internal/Magento/Framework/Interception/Interceptor.php(153): Magento\Webapi\Controller\Rest\Interceptor->Magento\Framework\Interception\{closure}()
#17 /var/www/html/mg24ce/magento2ce/generated/code/Magento/Webapi/Controller/Rest/Interceptor.php(23): Magento\Webapi\Controller\Rest\Interceptor->___callPlugins()
#18 /var/www/html/mg24ce/magento2ce/lib/internal/Magento/Framework/App/Http.php(116): Magento\Webapi\Controller\Rest\Interceptor->dispatch()
#19 /var/www/html/mg24ce/magento2ce/lib/internal/Magento/Framework/App/Bootstrap.php(264): Magento\Framework\App\Http->launch()
#20 /var/www/html/mg24ce/magento2ce/pub/index.php(30): Magento\Framework\App\Bootstrap->run()
#21 {main} [] []