Retrieve an app connection

curl --request GET \
  --url https://{defaultHost}/v5/app/app_connections/{id} \
  --header 'Authorization: Bearer <token>'

{
  "id": "<string>",
  "created_at": 123,
  "company_id": "<string>",
  "app_id": "<string>",
  "resource_id": "<string>",
  "resource_type": "<string>",
  "view_type": "customer_product_view"
}