---
title: "Changes to Generate presigned upload URL for vault file"
method: POST
path: "/vault/{id}/upload"
---

# Changes to Generate presigned upload URL for vault file

`POST /vault/{id}/upload`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 54 revisions.

- **2026-10-16** `a21d188f4b21`: 2 breaking, 8 info

## Changes

- **2026-10-16** `a21d188f4b21`: 2 breaking, 8 info
  - the response property `instructions` became nullable for the status `200`
  - the response property `uploadUrl` became nullable for the status `200`
  - added the new optional `header` request parameter `Idempotency-Key`
  - added the new optional request property `file_origin`
  - added the new optional request property `is_ai_generated`
  - the `sizeBytes` request property's min was decreased from `1.00` to `0.00`
  - added the non-success response with the status `409`
  - added the optional property `alreadyUploaded` to the response with the `200` status
  - added the optional property `file_origin` to the response with the `200` status
  - added the optional property `is_ai_generated` to the response with the `200` status

---

[Operation](https://skmtc.dev/casemark/apis/case-dev-api/docs/vault/:id/upload/post.md) - [API](https://skmtc.dev/casemark/apis/case-dev-api.md) - [Page](https://skmtc.dev/casemark/apis/case-dev-api/changes/vault/:id/upload/post)