---
title: "Preview File Type Values"
method: GET
path: "/backfills/preview-file-type-values"
tags: ["internal"]
---

# Preview File Type Values

`GET /backfills/preview-file-type-values`

Fetch all distinct file_type values across the entire files table and
attempt to resolve each to a valid DocumentTypeEnum slug.

Useful for auditing the file_type column before running a normalization
backfill. Values that cannot be resolved are listed prominently under
``unresolved`` — those will need either a manual mapping or a new
DocumentTypeEnum member before the backfill can proceed.

## Response `200`

Successful Response

- object

---

[API](https://skmtc.dev/kobaltlabs/apis/fastapi.md) · [All operations](https://skmtc.dev/kobaltlabs/apis/fastapi/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/kobaltlabs/fastapi/revisions/3ff4c0bd276b/schema)