REST API create order POST /V1/orders

[bibiseb]

Preconditions

1. Magento 2.2.4
2. PHP 7.0.18

Steps to reproduce

POST http://magento2.test/index.php/rest/V1/orders

{ "entity": { "base_grand_total" : 100, "customer_email" : "user@domain.tld", "grand_total" : 100, "items" : [ { "sku" : "TESTSEB" } ] } }

Expected result

An order should have been created

Actual result

I received this json:

{ "messages": { "error": [ { "code": 500, "message": "Server internal error. See details in report api/487380499411" } ] } }

And in the report file I get this error:

Fatal Error: 'Uncaught TypeError: Argument 1 passed to Magento\Paypal\Model\Adminhtml\Express\Interceptor::isOrderAuthorizationAllowed() must be an instance of Magento\Sales\Model\Order\Payment, null given, called in /home/forge/magento2.test/public/vendor/magento/module-paypal/Plugin/OrderCanInvoice.php on line 41 and defined in /home/forge/magento2.infinity-mobile.io/public/generated/code/Magento/Paypal/Model/Adminhtml/Express/Interceptor.php:33
Stack trace:
#0 /home/forge/magento2.test/public/vendor/magento/module-paypal/Plugin/OrderCanInvoice.php(41): Magento\Paypal\Model\Adminhtml\Express\Interceptor->isOrderAuthorizationAllowed(NULL)
#1 /home/forge/magento2.test/public/vendor/magento/framework/Interception/Interceptor.php(146): Magento\Paypal\Plugin\OrderCanInvoice->afterCanInvoice(Object(Magento\Sales\Model\Order\Interceptor), false)
#2 /home/forge/magento2.test/public/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Sales\Model\Order\Interce' in '/home/forge/magento2.test/public/generated/code/Magento/Paypal/Model/Adminhtml/Express/Interceptor.php' on line 33

Hi @bibiseb thank you for your report.
We've acknowledged the issue and added to our backlog.

[magento-engcom-team]

Hi @bibiseb. Thank you for your report.
The issue has been fixed in #15683 by @michielgerritsen in 2.2-develop branch
Related commit(s):

• f1554d42e7824ea9149d20142a0178f7a7d31f90

The fix will be available with the upcoming 2.2.8 release.