curl $UPSTASH_VECTOR_REST_URL/upsert \ -X POST \ -H "Authorization: Bearer $UPSTASH_VECTOR_REST_TOKEN" \ -d '[ { "id": "id-0", "vector": [0.1, 0.2], "metadata": { "link": "upstash.com" } }, { "id": "id-1", "vector": [0.2, 0.3] } ]'curl $UPSTASH_VECTOR_REST_URL/upsert/ns \ -X POST \ -H "Authorization: Bearer $UPSTASH_VECTOR_REST_TOKEN" \ -d '{ "id": "id-2", "vector": [0.1, 0.2], "metadata": { "link": "upstash.com" } }'