Internal Server Error in /V1/products/special-price 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. Send post request to below endpoints with the payload:
   Payload:
   {"prices": "[]"}

or
{"prices": ""}

API's effected with above payload:

1. POST request to http://yourstore/rest/default/V1/products/special-price
2. /V1/products/base-prices
3. /V1/products/cost
4. /V1/products/special-price-delete
5. /V1/products/tier-prices-delete
6. /V1/products/tier-prices
7. /V1/inventory/is-product-salable-for-requested-qty/{sku}/{stockId}/{requestedQty}

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:

	[2022-08-01T13:05:39.434987+00:00] main.CRITICAL: TypeError: Magento\Catalog\Model\Product\Price\SpecialPriceStorage::update(): Argument #1 ($prices) must be of type array, null given in /magento/vendor/magento/module-catalog/Model/Product/Price/SpecialPriceStorage.php:125
	Stack trace:
	#0 [internal function]: Magento\Catalog\Model\Product\Price\SpecialPriceStorage->update()
	#1 /magento/vendor/magento/module-webapi/Controller/Rest/SynchronousRequestProcessor.php(95): call_user_func_array()
	#2 /magento/vendor/magento/module-webapi/Controller/Rest.php(188): Magento\Webapi\Controller\Rest\SynchronousRequestProcessor->process()
	#3 /magento/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Webapi\Controller\Rest->dispatch()
	#4 /magento/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Webapi\Controller\Rest\Interceptor->___callParent()
	#5 /magento/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Webapi\Controller\Rest\Interceptor->Magento\Framework\Interception\{closure}()
	#6 /magento/generated/code/Magento/Webapi/Controller/Rest/Interceptor.php(23): Magento\Webapi\Controller\Rest\Interceptor->___callPlugins()
	#7 /magento/vendor/magento/framework/App/Http.php(116): Magento\Webapi\Controller\Rest\Interceptor->dispatch()
	#8 /magento/generated/code/Magento/Framework/App/Http/Interceptor.php(23): Magento\Framework\App\Http->launch()
	#9 /magento/vendor/magento/framework/App/Bootstrap.php(264): Magento\Framework\App\Http\Interceptor->launch()
	#10 /magento/pub/index.php(30): Magento\Framework\App\Bootstrap->run()
	#11 {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]

@magento give me 2.4-develop instance

[magento-deployment-service]

Hi @engcom-November. Thank you for your request. I'm working on Magento instance for you.

[magento-deployment-service]

Hi @engcom-November, here is your Magento Instance: https://334b8526e05c78ff6198b9cb88e71670.instances.magento-community.engineering
Admin access: https://334b8526e05c78ff6198b9cb88e71670.instances.magento-community.engineering/admin_ca39
Login: 21eb774a
Password: 412515e8a617

[engcom-November]

Hi @mlf20 ,
Verified the issue on Magento 2.4-develop branch but could not reproduce the issue.


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,

Thanks for looking at this, I believe the reason you are unable to reproduce this is due to the use of the 'prices' in the reequest body.

In my original issue the body of the request malformed, being set to: '{"prices": "\"[]\""}'.
I believe if you set the body of the request to the same as this you will be able to reproduce the error.

Many thanks

[engcom-November]

Hi @mlf20 Getting expected result: 400 bad request error on 2.4-develop branch

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