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POST
/
datasets
/
{dataset_id}
/
documents
/
{document_id}
/
segments
/
{segment_id}
Update Chunk
curl --request POST \
  --url https://{api_base_url}/datasets/{dataset_id}/documents/{document_id}/segments/{segment_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "segment": {
    "content": "<string>",
    "answer": "<string>",
    "keywords": [
      "<string>"
    ],
    "enabled": true,
    "regenerate_child_chunks": false,
    "attachment_ids": [
      "<string>"
    ],
    "summary": "<string>"
  }
}
'
{
  "data": {
    "id": "f3d1c7be-9f3a-40d8-8eb8-3a1ef9c3f2c1",
    "position": 1,
    "document_id": "a8e0e5b5-78c6-4130-a5ce-25feb0e0b4ac",
    "content": "Dify is an open-source LLM app development platform.",
    "sign_content": "",
    "answer": "",
    "word_count": 9,
    "tokens": 12,
    "keywords": [
      "dify",
      "platform",
      "llm"
    ],
    "index_node_id": "a1b2c3d4-e5f6-7890-abcd-000000000001",
    "index_node_hash": "abc123def456",
    "hit_count": 0,
    "enabled": true,
    "disabled_at": null,
    "disabled_by": null,
    "status": "completed",
    "created_by": "ad313dd6-ef04-4dd1-a5b0-c0f0b9e2e7e4",
    "created_at": 1741267200,
    "updated_at": 1741267200,
    "updated_by": "ad313dd6-ef04-4dd1-a5b0-c0f0b9e2e7e4",
    "indexing_at": 1741267200,
    "completed_at": 1741267200,
    "error": null,
    "stopped_at": null,
    "child_chunks": [],
    "attachments": [],
    "summary": null
  },
  "doc_form": "text_model"
}

Authorizations

​
Authorization
string
header
required

API Key authentication. For all API requests, include your API Key in the Authorization HTTP Header, prefixed with Bearer. Example: Authorization: Bearer {API_KEY}. Strongly recommend storing your API Key on the server-side, not shared or stored on the client-side, to avoid possible API-Key leakage that can lead to serious consequences.

Path Parameters

​
dataset_id
string<uuid>
required

Knowledge base ID.

​
document_id
string<uuid>
required

Document ID.

​
segment_id
string<uuid>
required

Chunk ID.

Body

application/json
​
segment
object
required

Chunk data to update.

Response

200 - application/json

Chunk updated successfully.

​
data
object
​
doc_form
string

Document chunking mode used by this document.