> For the complete documentation index, see [llms.txt](https://guardian.hedera.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guardian.hedera.com/schemas/schema-related-apis-for-asynchronous-execution/publishing-schema.md).

# Publishing Schema

**`PUT /schemas/push/{schemaId}/publish`**

Publishes the specified schema onto IPFS asynchronously, sending a message with its IPFS CID to the corresponding Hedera topic. Returns a task ID immediately; poll `GET /tasks/{taskId}` for the result.

**Authentication:** Bearer token required (`Authorization: Bearer <token>`)

**Permission:** `Permissions.SCHEMAS_SCHEMA_REVIEW`

***

## Request

### Path Parameters

| Parameter  | Type   | Required | Description                                                       |
| ---------- | ------ | -------- | ----------------------------------------------------------------- |
| `schemaId` | string | Yes      | The schema ID (MongoDB ObjectId, e.g. `63e3e5e8a01b3c001234abcd`) |

### Request Body

```json
{
  "version": "1.0.0"
}
```

| Field     | Type   | Required | Description                                                         |
| --------- | ------ | -------- | ------------------------------------------------------------------- |
| `version` | string | Yes      | The version string to assign to the published schema (e.g. `1.0.0`) |

***

## Response

### Success Response

**Status:** `202 Accepted`

```json
{
  "taskId": "63e3e5e8a01b3c001234abcd",
  "expectation": "Publish schema"
}
```

Poll `GET /tasks/{taskId}` to retrieve the result.

### Error Responses

| Status                      | Description                                              |
| --------------------------- | -------------------------------------------------------- |
| `401 Unauthorized`          | Missing or invalid token                                 |
| `403 Forbidden`             | Insufficient permissions or schema owned by another user |
| `404 Not Found`             | Schema not found                                         |
| `422 Unprocessable Entity`  | Schema is already published or version already exists    |
| `500 Internal Server Error` | Unexpected server failure                                |


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://guardian.hedera.com/schemas/schema-related-apis-for-asynchronous-execution/publishing-schema.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.