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# ADBC Snowflake Driver

This driver provides an interface to
[BigQuery](https://cloud.google.com/bigquery) using ADBC.

## Building

See [CONTRIBUTING.md](../../CONTRIBUTING.md) for details.

## Testing

BigQuery credentials and project ID are required.

### Environment Variables
#### Project ID
Set `BIGQUERY_PROJECT_ID` to the project ID.

#### Authentication
Set either one following environment variables for authentication:

##### BIGQUERY_JSON_CREDENTIAL_FILE
Path to the JSON credential file. This file can be generated using `gcloud`:

```sh
gcloud auth application-default login
```

And the default location of the generated JSON credential file is located at

```sh
$HOME/.config/gcloud/application_default_credentials.json
```

##### BIGQUERY_JSON_CREDENTIAL_STRING
Store the whole JSON credential content, something like

```json
{
  "account": "",
  "client_id": "123456789012-1234567890abcdefabcdefabcdefabcd.apps.googleusercontent.com",
  "client_secret": "d-SECRETSECRETSECRETSECR",
  "refresh_token": "1//1234567890abcdefabcdefabcdef-abcdefabcd-abcdefabcdefabcdefabcdefab-abcdefabcdefabcdefabcdefabcdef-ab",
  "type": "authorized_user",
  "universe_domain": "googleapis.com"
}
```