> For the complete documentation index, see [llms.txt](https://dev.vulos.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dev.vulos.io/reference/identity-javascript-sdk/the-backend-auth-package/codeverifier.md).

# CodeVerifier

## Members

### `codeChallenge : string`

The OpenID code challenge.

### `codeChallengeMethod : string`

The OpenID code challenge method - defaults to `"S256"`.

### `codeVerifier : string`

The OpenID code verifier.

## Methods

### `constructor()`

Create a new code verifier.

```javascript
const verifier = new CodeVerifier()
```