# Lock an issue

From **GitHub v3 REST API**.

`PUT /repos/{owner}/{repo}/issues/{issue_number}/lock`

Users with push access can lock an issue or pull request's conversation.

Note that, if you choose not to pass any parameters, you'll need to set `Content-Length` to zero when calling out to this endpoint. For more information, see "[HTTP verbs](https://docs.github.com/enterprise-server@3.0/rest/overview/resources-in-the-rest-api#http-verbs)."

## Parameters

### `owner`

- Location: path
- Required: true
- Type: `string`

### `repo`

- Location: path
- Required: true
- Type: `string`

### `issue_number`

- Location: path
- Required: true
- Type: `integer`

issue_number parameter

## Request body

- Required: false
### `application/json`

- Type: `object`
- Nullable: true

```json
{"nullable":true,"properties":{"lock_reason":{"description":"The reason for locking the issue or pull request conversation. Lock will fail if you don't use one of these reasons:  \n\\* `off-topic`  \n\\* `too heated`  \n\\* `resolved`  \n\\* `spam`","enum":["off-topic","too heated","resolved","spam"],"type":"string"}},"type":"object"}
```

## Responses

### `204`

Response

### `403`

Forbidden

### `application/json`

- Type: `object`

Basic Error

```json
{"description":"Basic Error","properties":{"documentation_url":{"type":"string"},"message":{"type":"string"},"status":{"type":"string"},"url":{"type":"string"}},"title":"Basic Error","type":"object"}
```

### `404`

Resource not found

### `application/json`

- Type: `object`

Basic Error

```json
{"description":"Basic Error","properties":{"documentation_url":{"type":"string"},"message":{"type":"string"},"status":{"type":"string"},"url":{"type":"string"}},"title":"Basic Error","type":"object"}
```

### `410`

Gone

### `application/json`

- Type: `object`

Basic Error

```json
{"description":"Basic Error","properties":{"documentation_url":{"type":"string"},"message":{"type":"string"},"status":{"type":"string"},"url":{"type":"string"}},"title":"Basic Error","type":"object"}
```

### `422`

Validation failed

### `application/json`

- Type: `object`

Validation Error

```json
{"description":"Validation Error","properties":{"documentation_url":{"type":"string"},"errors":{"items":{"properties":{"code":{"type":"string"},"field":{"type":"string"},"index":{"type":"integer"},"message":{"type":"string"},"resource":{"type":"string"},"value":{"oneOf":[{"nullable":true,"type":"string"},{"nullable":true,"type":"integer"},{"items":{"type":"string"},"nullable":true,"type":"array"}]}},"required":["code"],"type":"object"},"type":"array"},"message":{"type":"string"}},"required":["message","documentation_url"],"title":"Validation Error","type":"object"}
```

## Request examples

### cURL

```shell
curl --request PUT \
  --url {protocol}://{hostname}/api/v3/repos/{owner}/{repo}/issues/{issue_number}/lock \
  --header 'content-type: application/json' \
  --data '{
  "lock_reason": "string"
}'
```