**Note**: The `closed_by` attribute was [introduced in GitLab 10.6][ce-17042]. This value will only be present for issues which were closed after GitLab 10.6 and when the user account that closed the issue still exists.
## Bulk update issues
> [Introduced](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/21368) in GitLab 11.9.
Update multiple issues using a single API call. Returns the number of successfully updated issues.
```
PUT /projects/:id/issues/bulk_update
```
| Attribute | Type | Required | Description **** |
| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user. |
| `issuable_ids` | Array[integer] | yes | The IDs of issues to be updated. |
| `assignee_ids` | Array[integer] | no | The ID of the user(s) to assign the issue to. Set to `0` or provide an empty value to unassign all assignees. |
| `milestone_id` | integer | no | The global ID of a milestone to assign the issue to. Set to `0` or provide an empty value to unassign a milestone.|
| `add_label_ids` | Array[integer] | no | Comma-separated label IDs to be added. |
| `remove_label_ids` | Array[integer] | no | Comma-separated label IDs to be added. |
| `state_event` | string | no | The state event of an issue. Set `close` to close the issue and `reopen` to reopen it. |
| `subscription_event` | string | no | The subscription_event event of an issue. Set `subscribe` to subscribe to the issue and `unsubscribe` to unsubscribe from it. |
```bash
curl --request PUT --header"PRIVATE-TOKEN: <your_access_token>" https://gitlab.example.com/api/v4/projects/4/issues/bulk_update?issuable_ids[]=1&issuable_ids[]=2&state_event=close
```
Example response:
```json
{"message":"2 issues updated"}
```
## Delete an issue
Only for admins and project owners. Soft deletes the issue in question.
| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user. |
| `issuable_ids` | Array[integer] | yes | The IDs of merge requests to be updated. |
| `assignee_ids` | Array[integer] | no | The ID of the user(s) to assign the issue to. Set to `0` or provide an empty value to unassign all assignees. |
| `milestone_id` | integer | no | The global ID of a milestone to assign the issue to. Set to `0` or provide an empty value to unassign a milestone.|
| `add_label_ids` | Array[integer] | no | Comma-separated label IDs to be added. |
| `remove_label_ids` | Array[integer] | no | Comma-separated label IDs to be added. |
| `state_event` | string | no | The state event of an issue. Set `close` to close the issue and `reopen` to reopen it. |
| `subscription_event` | string | no | The subscription_event event of an issue. Set `subscribe` to subscribe to the issue and `unsubscribe` to unsubscribe from it. |
```bash
curl --request PUT --header"PRIVATE-TOKEN: <your_access_token>" https://gitlab.example.com/api/v4/projects/4/merge_requests/bulk_update?issuable_ids[]=1&issuable_ids[]=2&state_event=close
```
Example response:
```json
{"message":"2 merge_requests updated"}
```
## Delete a merge request
Only for admins and project owners. Soft deletes the merge request in question.