---
title: "Replace a document's file"
method: PUT
path: "/org/kb/nodes/{id}/file"
tags: ["Knowledge Base"]
---

# Replace a document's file

`PUT /org/kb/nodes/{id}/file`

## Request

- Base URL: `https://apiv2.senso.ai/api/v1`
- URL: `https://apiv2.senso.ai/api/v1/org/kb/nodes/{id}/file`
- Auth: API key in header `X-API-Key`

Replaces a file-backed document with a new file and re-ingests it. Returns the per-file registration result — PUT the file bytes to the returned `upload_url` to start ingestion. Markdown content must use the raw-text endpoint instead.

## Path parameters

- `id` string, uuid, required

## Request body

- IngestionUpdateRequest
  - `file` IngestionUploadFileItem, required: One file's metadata. The bytes are uploaded separately to the returned presigned URL.
    - `filename` string, required
    - `file_size_bytes` integer, required
    - `content_type` string, required: The file's MIME type (e.g. `application/pdf`).
    - `content_hash_md5` string, required: The file's MD5 hash, 32 hex characters.

## Response `200`

The file registration result (PUT bytes to `upload_url`).

- IngestionUploadResultItem: The ingestion-registration result for one file.
  - `filename` string, required
  - `status` string, required: `upload_pending` (accepted — PUT the bytes to `upload_url`), `conflict` (an active run is already processing this content), `duplicate` (the same file appears twice in the request), `invalid` (failed metadata validation), or `markdown_requires_raw_ingestion` (a `.md`/`.markdown` file was supplied — create markdown documents via the raw-text endpoint instead).
  - `ingestion_run_id` string, uuid
  - `content_id` string, uuid
  - `kb_node_id` string, uuid: The created/replaced document node. Absent on skipped items (any status other than `upload_pending`).
  - `upload_url` string: Presigned URL to PUT the file bytes to (accepted items only).
  - `expires_in` integer: Seconds until `upload_url` expires.
  - `error` string: Why the file was skipped (skipped items only).
  - `existing_content_id` string, uuid: The already-processing content's id (`conflict` items only).

## Other responses

- `400`: The request body was invalid — either it failed field validation (`ValidationErrorResponse`) or was otherwise malformed (`ErrorResponse`).
- `401`: Missing or invalid credentials — supply a valid org API key in the `X-API-Key` header.
- `402`: The organization is out of credits or has reached its spending limit.
- `403`: The API key is authenticated but not permitted to access this resource.
- `404`: The requested resource does not exist or is not visible to this key.
- `409`: The request conflicts with the current state (e.g. a duplicate).

---

[API](https://skmtc.dev/senso/apis/senso-org-api.md) - [All operations](https://skmtc.dev/senso/apis/senso-org-api/llms.txt) - [OpenAPI document](https://skmtc.dev/senso/apis/senso-org-api/revisions/d789b4fcbe84?raw)