Bulk create spans
Authentication
Use a dashboard JWT only for dashboard-authenticated endpoints. Respan API-key endpoints use the respanApiKey auth field instead.
Request
Non-empty array of span payloads. Each object uses the same schema as POST /api/request-logs/.
Response
At least one row was accepted. This status is also used for partial success; inspect the response counts and indexed errors.
Item-level failures, keyed by zero-based input index.