Preflight: validate CSV headers against a saved mapping
Documentation Index
Fetch the complete documentation index at: https://docs.gu1.ai/llms.txt
Use this file to discover all available pages before exploring further.
multipart/form-data.
Response: JSON with ok: true or ok: false plus error details (missingCsvColumns, etc.). Uses HTTP 200 even when validation fails β check ok.
| Field | Required | Description |
|---|---|---|
file | Yes | CSV file |
mappingId | Yes | Saved mapping UUID |