# Update a role

```{raw} html
<div class="mo-api-page-show-toc" aria-hidden="true"></div>
```

Update a specified role's name and description. Only a role that remains editable can be updated.

```text
PATCH https://moi.matrixorigin.cn/newmoi/workspaces/{workspace_id}/iam/roles/{role_id}
```

## Preparation before calling

First [select the role](list-roles.md#select-a-role), confirm that it remains editable, and prepare the update using its current state in the list. Prepare a personal access token with the required permission in the target workspace and the [target workspace ID](../../../../../guides/ai-studio/resource-center/workspace.md#copy-a-workspace-id).

## Request parameters

:::::::{div} mo-api-tabs
::::::{tab-set}
:::::{tab-item} Input example

```bash
curl -X PATCH "https://moi.matrixorigin.cn/newmoi/workspaces/$WORKSPACE_ID/iam/roles/$ROLE_ID" \
  -H "X-API-Key: $AI_STUDIO_API_KEY" \
  -H "X-Workspace-ID: $WORKSPACE_ID" \
  -H "Content-Type: application/json" \
  -d '{"request_id":"req-001","name":"Data analyst","description":"Responsible for viewing analytical data","expected_lifecycle_version":1}'
```

:::::
:::::{tab-item} Parameter description

### Path parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| workspace_id | string | Yes | Target workspace ID. |
| role_id | string | Yes | Target role ID. |

### Request body

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| request_id | string | Yes | Request ID. |
| name | string | Yes | Role name. |
| description | string | No | Updated role description. Omit it to store an empty string. |
| expected_lifecycle_version | integer | Yes | Expected role lifecycle version. Must be greater than `0`. |

:::::
::::::
:::::::

## Successful response

On success, returns the updated role summary and new lifecycle version. Replaying the same request ID with the same content does not apply the update again.

:::::::{div} mo-api-tabs mo-api-response-tabs
::::::{tab-set}
:::::{tab-item} Response example

```json
{"code":"OK","msg":"OK","data":{"role":{"workspace_id":"workspace-001","role_id":"role-001","role_name":"analyst","description":"Data analysis role","lifecycle_state":"active","lifecycle_version":4,"system_role":false},"idempotent_replay":false}}
```

:::::
:::::{tab-item} Field details

| Field | Type | Description |
| --- | --- | --- |
| code | string | `OK` on success. |
| msg | string | `OK` on success. |
| data.role | object | Updated role summary. |
| data.role.lifecycle_version | integer | Updated role lifecycle version. |
| data.idempotent_replay | boolean | Whether this is an idempotent replay of the same request. |

:::::
::::::
:::::::

## Error response

:::::::{div} mo-api-tabs mo-api-response-tabs
::::::{tab-set}
:::::{tab-item} Response example

```json
{"code":"ErrParamInvalid","msg":"请求参数无效","data":null}
```

:::::
:::::{tab-item} Field details

| Field | Type | Description |
| --- | --- | --- |
| code | string | Error code. |
| msg | string | Error message. |
| data | null | — |

:::::
::::::
:::::::