Function refreshAccessToken

refreshAccessToken(
    clientId: string,
    clientSecret: string,
    refreshToken: string,
    signal?: AbortSignal,
): Promise<AniListTokenResponse>
Exchanges a refresh token for a new access token using the refresh-token grant.
Parameters
- clientId: string
  The client ID of your AniList API application.
- clientSecret: string
  The client secret of your AniList API application.
- refreshToken: string
  The refresh token from a previous token response.
- Optionalsignal: AbortSignal
  Optional AbortSignal to cancel the refresh while it is in flight.
Returns Promise<AniListTokenResponse>
A promise that resolves to the token response containing a new access_token. The refresh_token field may be absent when AniList does not rotate it.
Throws
An AniLinkApiError when AniList rejects the refresh, for example when the refresh token is invalid or revoked, or an AniLinkNetworkError on transport failure. Errors never include the request body, so the client secret and refresh token are not leaked.
Example
```
const { access_token } = await refreshAccessToken("1234", "secret", "stored-refresh-token");
const aniLink = new AniLink(access_token);
```
- Defined in apis/graphql/anilist/auth.ts:231