---
title: "Changes to Create a new user-defined block."
method: POST
path: "/api/blocks"
---

# Changes to Create a new user-defined block.

`POST /api/blocks`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 3 of 53 revisions.

- **2026-05-19** `e0c3a47f5b18`: 2 info
- **2026-05-12** `9f9b59a3085d`: 1 breaking, 1 info
- **2026-04-07** `1e67862a080e`: 1 breaking, 2 warning, 1 info

## Changes

- **2026-05-19** `e0c3a47f5b18`: 2 info
  - added the new optional request property `exposed_properties/items/persist`
  - added the optional property `block/exposed_properties/items/persist` to the response with the `201` status
- **2026-05-12** `9f9b59a3085d`: 1 breaking, 1 info
  - added `subschema #9` to the `block/exposed_properties/items/property_type` response property `oneOf` list for the response status `201`
  - added `subschema #9` to the `exposed_properties/items/property_type` request property `oneOf` list
- **2026-04-07** `1e67862a080e`: 1 breaking, 2 warning, 1 info
  - removed `subschema #9` from the `exposed_properties/items/property_type` request property `oneOf` list
  - removed the request property `exposed_properties/items/persist`
  - removed the optional property `block/exposed_properties/items/persist` from the response with the `201` status
  - removed `subschema #9` from the `block/exposed_properties/items/property_type` response property `oneOf` list for the response status `201`

---

[Operation](https://skmtc.dev/eyevinn/apis/strom-api/docs/api/blocks/post.md) - [API](https://skmtc.dev/eyevinn/apis/strom-api.md) - [Page](https://skmtc.dev/eyevinn/apis/strom-api/changes/api/blocks/post)