Simplified Metafield Querying
API
Effective January 01, 2023
As of the 2023-01 Admin API release, you can optionally supply the key argument to metafield queries on resources in the format of namespace.key to simplify your queries on the metafield field. You will also be able to optionally supply the keys argument to the metafields connection as a list of strings in the same format. The key returned will also be in the format of namespace.key.