web_update_config.py

def updateConfig(project_id, region, registry_id, device_id, data):
    """Push the data to the given device as configuration."""
    config_data_json = json.dumps(data)
    body = {
        'version_to_update': 0,
        'binary_data': base64.b64encode(
                config_data_json.encode('utf-8')).decode('ascii')
    }

    device_name = ('projects/{}/locations/{}/registries/{}/'
                   'devices/{}'.format(
                       project_id,
                       region,
                       registry_id,
                       device_id))

    request = service.projects().locations().registries().devices(
    ).modifyCloudToDeviceConfig(name=device_name, body=body)

    update_config_mutex.acquire()
    try:
        request.execute()
    except HttpError as e:
        print('Error executing ModifyCloudToDeviceConfig: {}'.format(e))
    finally:
        update_config_mutex.release()