# AuthGrantType

The OAuth2 grant type Google uses to guide the user to sign in to your App's web service.

| Enums ||
|---|---|
| `AUTH_GRANT_TYPE_UNSPECIFIED` | Unspecified. |
| `AUTH_CODE` | Authorization code grant. Requires you to provide both authentication URL and access token URL. |
| `IMPLICIT` | Implicit code grant. Only requires you to provide authentication URL. |