# Logoff

The `logoff()` function sends an endsesion request to the OIDC server, if it is available, or the check session has not sent a changed event.

```typescript
logout() {
   this.oidcSecurityService.logoff();
}

```

The `logoffAndRevokeTokens()` function revokes the access token and the refresh token if using a refresh flow, and then logoff like above.

```typescript
logoffAndRevokeTokens() {
   this.oidcSecurityService.logoffAndRevokeTokens()
      .subscribe((result) => console.log(result));
}
```

The `logoffLocal()` function is used to reset you local session in the browser, but not sending anything to the server.

```typescript
logoutLocal() {
   this.oidcSecurityService.logoffLocal();
}
```