---
title: "Changes to Create dataset"
method: POST
path: "/workspaces/{workspaceId}/datasets"
---

# Changes to Create dataset

`POST /workspaces/{workspaceId}/datasets`

> Every recorded change to this operation, newest first.
> 19 revisions in range; 1 not diffed.

## Timeline

Changed in 3 of 19 revisions.

- **2026-09-28** `24f327d93421`: 5 breaking
- **2026-04-20** `b2b5cc41d473`: 2 info
- **2026-01-20** `98d6b538c88e`: 5 breaking, 12 info

## Changes

- **2026-09-28** `24f327d93421`: 5 breaking
  - the response property `dataset/labels` became nullable for the status `200`
  - the response property `dataset/lastUpdatedBy/avatar` became nullable for the status `200`
  - the response property `dataset/mediaType` became nullable for the status `200`
  - the response property `dataset/runsInfo/lastUsed` became nullable for the status `200`
  - the response property `dataset/user/avatar` became nullable for the status `200`
- **2026-04-20** `b2b5cc41d473`: 2 info
  - added the new optional request property `sourceType`
  - added the optional property `dataset/sourceType` to the response with the `200` status
- **2026-01-20** `98d6b538c88e`: 5 breaking, 12 info
  - the response property `dataset/name` became optional for the status `200`
  - the `dataset/description` response property's maxLength was unset from `1000` for the response status `200`
  - the `dataset/id` response property's maxLength was unset from `22` for the response status `200`
  - the `dataset/mediaType` response property's maxLength was unset from `80` for the response status `200`
  - the `dataset/name` response property's maxLength was unset from `100` for the response status `200`
  - added the optional property `dataset/hidden` to the response with the `200` status
  - added the optional property `dataset/labels` to the response with the `200` status
  - added the optional property `dataset/lastUpdatedBy` to the response with the `200` status
  - added the optional property `dataset/organizationId` to the response with the `200` status
  - added the optional property `dataset/runsInfo` to the response with the `200` status
  - added the optional property `dataset/user` to the response with the `200` status
  - added the optional property `dataset/version` to the response with the `200` status
  - added the optional property `dataset/workspaceId` to the response with the `200` status
  - the response optional property `dataset/dateCreated` became not read-only for the status `200`
  - the response optional property `dataset/deleted` became not read-only for the status `200`
  - the response optional property `dataset/lastUpdated` became not read-only for the status `200`
  - the `dataset/name` response's property pattern `^[a-zA-Z\d](?:[a-zA-Z\d]|[-_](?=[a-zA-Z\d])){1,98}$` was removed for the status `200`

---

[Operation](https://skmtc.dev/seqeralabs/apis/seqera-api/docs/workspaces/:workspaceId/datasets/post.md) - [API](https://skmtc.dev/seqeralabs/apis/seqera-api.md) - [Page](https://skmtc.dev/seqeralabs/apis/seqera-api/changes/workspaces/:workspaceId/datasets/post)