---
title: "Changes to Confirm that an attachment has been uploaded to S3"
method: POST
path: "/v1/attachments/{attachmentId}/confirm"
---

# Changes to Confirm that an attachment has been uploaded to S3

`POST /v1/attachments/{attachmentId}/confirm`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 87 revisions.

- **2026-10-25** `8d368659667e`: 8 breaking, 8 info

## Changes

- **2026-10-25** `8d368659667e`: 8 breaking, 8 info
  - the response property `attachment/blur_hash` became nullable for the status `200`
  - the response property `attachment/external_url` became nullable for the status `200`
  - the response property `attachment/message_id` became nullable for the status `200`
  - the response property `attachment/post_id` became nullable for the status `200`
  - the response property `attachment/s3_key` became nullable for the status `200`
  - the response property `attachment/thumbnail_url` became nullable for the status `200`
  - the response property `attachment/uploaded_at` became nullable for the status `200`
  - the response property `attachment/url` became nullable for the status `200`
  - response property `attachment/blur_hash` list-of-types was narrowed by removing types `null` from media type `application/json` of response `200`
  - response property `attachment/external_url` list-of-types was narrowed by removing types `null` from media type `application/json` of response `200`
  - response property `attachment/message_id` list-of-types was narrowed by removing types `null` from media type `application/json` of response `200`
  - response property `attachment/post_id` list-of-types was narrowed by removing types `null` from media type `application/json` of response `200`
  - response property `attachment/s3_key` list-of-types was narrowed by removing types `null` from media type `application/json` of response `200`
  - response property `attachment/thumbnail_url` list-of-types was narrowed by removing types `null` from media type `application/json` of response `200`
  - response property `attachment/uploaded_at` list-of-types was narrowed by removing types `null` from media type `application/json` of response `200`
  - response property `attachment/url` list-of-types was narrowed by removing types `null` from media type `application/json` of response `200`

---

[Operation](https://skmtc.dev/legend/apis/legend-api/docs/v1/attachments/:attachmentId/confirm/post.md) - [API](https://skmtc.dev/legend/apis/legend-api.md) - [Page](https://skmtc.dev/legend/apis/legend-api/changes/v1/attachments/:attachmentId/confirm/post)