yes, v2.1 have tenant_id in the URL. because v2.1 compatible with v2 API. And V3 API is totally replaced by v2.1. Just forget v3, v3 doesn't exist anymore
yes, v2.1 have tenant_id in the URL. because v2.1 compatible with v2 API. And V3 API is totally replaced by v2.1. Just forget v3, v3 doesn't exist anymore