Replace uploaded file content

Interface Description

Replace the complete Markdown content of one uploaded file and optionally move it.

Endpoint

Field	Value
Method	PUT
Path	/openapi/v2/knowledge-bases/{knowledgeBaseId}/source-files/{sourceFileId}/content
Operation ID	replaceSourceFileContent
Authentication	Bearer OpenAPI key

Parameters

Name	Location	Required	Type	Example	Description
knowledgeBaseId	path	Yes	string	knowledge-base-11111111-1111-4111-8111-111111111111	Knowledge-base identifier returned by knowledge-base APIs.
sourceFileId	path	Yes	string	source-file-11111111-1111-4111-8111-111111111111	Uploaded-file identifier returned by upload or uploaded-file list APIs.
Idempotency-Key	header	Yes	string	mutation-2026-07-10-001	Client-generated key for safely retrying the same request. Reuse the same value for retries so duplicate work is not created.
If-Match	header	Yes	string	"1"	Current resourceRevision returned by the API. If the resource changed after it was read, the request returns a conflict instead of overwriting the newer change.
X-Source-Relative-Path	header	No	string	handbook/setup/install.md	Optional new path when replacing and moving the file in one request. The destination directory must already exist.

Request Body

text/markdown

Schema type: string

Complete Markdown content that will replace the current file.

Request Example

curl -X PUT "https://openapi.example.com/openapi/v2/knowledge-bases/knowledge-base-11111111-1111-4111-8111-111111111111/source-files/source-file-11111111-1111-4111-8111-111111111111/content" \
  -H "Authorization: Bearer <openapi-key>" \
  -H "Idempotency-Key: mutation-2026-07-10-001" \
  -H "If-Match: \"1\"" \
  -H "X-Source-Relative-Path: handbook/setup/install.md" \
  -H "Content-Type: text/markdown" \
  --data-binary "# Installation\n\nCurrent installation guidance."

Successful Responses

202

File content replacement accepted for background processing.

Field	Required	Type	Description
operation	Yes	object	File or directory change record returned by the request.

Success Response Example

{
  "operation": {
    "operationId": "source-replace-44444444-4444-4444-8444-444444444444",
    "knowledgeBaseId": "knowledge-base-11111111-1111-4111-8111-111111111111",
    "kind": "source_file_replace",
    "state": "processing",
    "expectedResourceRevision": 1,
    "targetKind": "source_file",
    "targetId": "source-file-11111111-1111-4111-8111-111111111111",
    "candidateRelativePath": "handbook/setup/install.md",
    "result": null,
    "errorCode": null,
    "retryGuidance": "Check this change again after a short delay.",
    "actions": {
      "self": "/openapi/v2/knowledge-bases/knowledge-base-11111111-1111-4111-8111-111111111111/operations/source-replace-44444444-4444-4444-8444-444444444444"
    },
    "createdAt": "2026-06-17T00:00:00.000Z",
    "updatedAt": "2026-06-17T00:00:00.000Z",
    "completedAt": null
  }
}

Error Codes

The table below lists every error response documented for this operation.

HTTP Status	Error Code	Explanation
401	UNAUTHORIZED	The Bearer API key is missing, malformed, unknown, revoked, or deleted.
404	NOT_FOUND	The requested resource was not found.
409	CONFLICT	The request conflicts with the resource's current state.
413	PAYLOAD_TOO_LARGE	The request body or requested file exceeds the size limit for this operation.
422	VALIDATION_ERROR	The request failed validation.
429	RATE_LIMITED	The request exceeded the configured rate limits.
500	INTERNAL_ERROR	The API encountered an internal error.
503	DATABASE_REPOSITORY_UNAVAILABLE	The data required by this operation is temporarily unavailable.

Next Steps

• Get document indexing or resource change