Use this tool to finalize a file upload and create the asset on monday.com. Call it after uploading the file to the presigned URL returned by get_asset_upload_url. It automatically attaches the uploaded asset to the specified file or doc column on an item and returns the created asset_id.

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This tool runs against the monday.com dev (preview) API schema (complete_upload). The underlying API is subject to change until it is promoted to a stable API version.

This is the final step of the upload flow:

get_asset_upload_url — Get an upload_id and upload_url.
Upload the file — PUT the file to upload_url and capture the ETag response header.
finalize_asset_upload ← You are here — Complete the upload and attach the asset.

Parameters

Parameter	Type	Required	Description
uploadId	`string`	Yes	The `upload_id` returned by get_asset_upload_url.
etag	`string`	Yes	The `ETag` header value from the `PUT` response when uploading to the presigned URL.
boardId	`string`	Yes	The board's unique identifier.
itemId	`string`	Yes	The item's unique identifier.
columnId	`string`	Yes	The file or doc column's unique identifier to attach the uploaded asset to.

Example

Finalize an upload and attach the file to an item's file column:

{
  "uploadId": "upl_abc123",
  "etag": "\"d41d8cd98f00b204e9800998ecf8427e\"",
  "boardId": "1234567890",
  "itemId": "987654321",
  "columnId": "files"
}

The tool returns the created asset's asset_id, filename, content_type, file_size, url, and filelink.

Programmatic equivalent

This tool maps to the complete_upload mutation on the monday.com dev (preview) API schema, followed by a change_column_value mutation to attach the asset. There is no stable public GraphQL equivalent for complete_upload yet. For working with files on the stable API, see Assets.