List Extra Option Metafields
API operation: Open the endpoint in Scalar
Use GET /business/{business_id}/extras/{extra_id}/options/{option_id}/metafields to list the metafields attached to an extra option. The operation is ExtraOptionMetafield.findAll.
The operation requires administrator or business-manager authentication. The controller verifies that option_id belongs to extra_id and that the extra belongs to business_id, then returns metafields with pagination metadata.
See Find an extra option metafield, Create an extra option metafield, and Extra attributes (Metafields).