创建元对象定义

curl --location 'https://zhenghaonan.myshopline.com/admin/openapi/v20260601/metaobject_definition.json' \
--header 'Authorization: Bearer eyJhbGciOiJIUzUxMiIsInR5cCI6IkpXVCJ9.eyJhcHBJZCI6MCwiYXBwS2V5IjoiNzJiODI1NDQzNzg0ZjIwMGRlZTI3MzM4MDA3ZWQ3MDYyNmM3NzBhZSIsImV4cCI6MTg2MDgwNzQ2NywiaXNzIjoieXNvdWwiLCJzZWxsZXJJZCI6IjI0MDczMzE4NjIiLCJzdG9yZUlkIjoiMTczNjQxNjA5MDAzMyIsInRpbWVzdGFtcCI6MTc2NjExMzA2NzQyMiwidmVyc2lvbiI6IlYyIn0.ZbMED6-ll35NSPOxQg55TreKpqGIHLq-NbJg3L9vSU4AuXIZ7TTuEjsqkRwmbcGSR_pyX3k77ka8b04_BnM46Q' \
--header 'Content-Type: application/json' \
--data '{
    "metaobject_definition": {
        "name": "商品规格",
        "description": "用于定义商品规格信息",
        "type": "product_specification424",
        "display_name_key": "title",
        "field_definitions": [
            {
                "name": "标题1",
                "description": "规格标题",
                "key": "title2121",
                "type": "single_line_text_field"
            },
            {
                "name": "描述1",
                "description": "规格描述",
                "key": "description",
                "type": "multi_line_text_field"
            },
            {
                "name": "描述2",
                "description": "规格描述2",
                "key": "description2",
                "type": "multi_line_text_field"
            }
        ],
        "access": {
            "admin": "PUBLIC_READ"
        }
    }
}'