You have this error? More trace is at the end of the post.
The properties of your Entity need to be protected.
// WRONG. class SlotExtensionEntity extends Entity { use EntityIdTrait; private int $slotId; private int $ticketsBeforeWaitlist; private SlotEntity $slot; // [...] }
// Correct. class SlotExtensionEntity extends Entity { use EntityIdTrait; protected int $slotId; protected int $ticketsBeforeWaitlist; protected SlotEntity $slot; // [...] }
"errors": [
{
"code": "0",
"status": "500",
"title": "Internal Server Error",
"detail": "Cannot access private property WinkelwagenEvents\\Entities\\Slot\\SlotExtensionEntity::$slot",
"meta": {
"trace": [
{
"file": "/var/www/html/vendor/shopware/core/Framework/DataAbstractionLayer/Entity.php",
"line": 82,
"function": "__get",
"class": "Shopware\\Core\\Framework\\DataAbstractionLayer\\Entity",
"type": "->",
"args": [
"slot"
]
},
{
"file": "/var/www/html/vendor/shopware/core/Framework/Api/Serializer/JsonApiEncoder.php",
"line": 89,
"function": "get",
"class": "Shopware\\Core\\Framework\\DataAbstractionLayer\\Entity",
"type": "->",
"args": [
"slot"
]
},
[...]