curl -X GET 'https://app.memorylake.cn/openapi/memorylake/api/v3/db-connections/dbconn-7c1e9a4b2d6f4a8e9b3c5d7f1a2b4c6d' \
  -H 'Authorization: Bearer sk_xxxxxx'

curl -X GET 'https://app.memorylake.cn/openapi/memorylake/api/v3/db-connections/sales-warehouse?by_custom_id=true' \
  -H 'Authorization: Bearer sk_xxxxxx'

{
  "success": true,
  "data": {
    "id": "dbconn-7c1e9a4b2d6f4a8e9b3c5d7f1a2b4c6d",
    "name": "Sales warehouse",
    "description": "Read-only replica of the sales database",
    "host": "pg.internal.example.com",
    "port": 5432,
    "username": "analytics_ro",
    "database": "sales",
    "custom_id": "sales-warehouse",
    "datasource_count": 1,
    "created_at": "2026-09-18T07:42:17.139Z",
    "updated_at": "2026-09-18T07:42:17.139Z"
  }
}