curl --location --request POST 'https://api.get.systems/projects/abcdef01-2345-6789-abcd-ef0123456789/product-lists/abcdef01-2345-6789-abcd-ef0123456789/products//set-default-variant' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data-raw '{
"newDefaultVariantExternalId": "string"
}'{}