Authentication
This section provides a complete list of the Authentication properties you can configure in the connection string for this provider.
| Property | Description |
| AuthScheme | Specifies the authentication method used to connect to Google Spanner. |
| InstanceId | The id of the Google Spanner instance to which you are connecting. |
| Database | The name of the Google Spanner database to connect to. If not specified, the driver will attempt to expose all databases within the instance as separate catalogs. When accessing multiple databases, ensure the following OAuth scopes are configured: https://www.googleapis.com/auth/spanner.admin and https://www.googleapis.com/auth/spanner.data. |
| DatabaseDialect | The dialect type of the connected database. |
| ProjectId | The id of the project where your Google Spanner instance resides. |