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backups-restore.js
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backups-restore.js
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/**
* Copyright 2024 Google LLC
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
async function restoreBackup(instanceId, databaseId, backupId, projectId) {
// [START spanner_restore_backup]
// Imports the Google Cloud client library and precise date library
const {Spanner} = require('@google-cloud/spanner');
const {PreciseDate} = require('@google-cloud/precise-date');
/**
* TODO(developer): Uncomment the following lines before running the sample.
*/
// const projectId = 'my-project-id';
// const instanceId = 'my-instance';
// const databaseId = 'my-database';
// const backupId = 'my-backup';
// Creates a client
const spanner = new Spanner({
projectId: projectId,
});
// Gets a reference to a Cloud Spanner Database Admin Client object
const databaseAdminClient = spanner.getDatabaseAdminClient();
// Restore the database
console.log(
`Restoring database ${databaseAdminClient.databasePath(
projectId,
instanceId,
databaseId
)} from backup ${backupId}.`
);
const [restoreOperation] = await databaseAdminClient.restoreDatabase({
parent: databaseAdminClient.instancePath(projectId, instanceId),
databaseId: databaseId,
backup: databaseAdminClient.backupPath(projectId, instanceId, backupId),
});
// Wait for restore to complete
console.log('Waiting for database restore to complete...');
await restoreOperation.promise();
console.log('Database restored from backup.');
const [metadata] = await databaseAdminClient.getDatabase({
name: databaseAdminClient.databasePath(projectId, instanceId, databaseId),
});
console.log(
`Database ${metadata.restoreInfo.backupInfo.sourceDatabase} was restored ` +
`to ${databaseId} from backup ${metadata.restoreInfo.backupInfo.backup} ` +
'with version time ' +
`${new PreciseDate(
metadata.restoreInfo.backupInfo.versionTime
).toISOString()}.`
);
// [END spanner_restore_backup]
}
module.exports.restoreBackup = restoreBackup;