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// Copyright 2021 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 addJsonColumn(instanceId, databaseId, projectId) {
// [START spanner_add_json_column]
// Imports the Google Cloud client library.
const {Spanner} = require('@google-cloud/spanner');
/**
* TODO(developer): Uncomment the following lines before running the sample.
*/
// const projectId = 'my-project-id';
// const instanceId = 'my-instance';
// const databaseId = 'my-database';
// Creates a client
const spanner = new Spanner({
projectId: projectId,
});
// Gets a reference to a Cloud Spanner instance.
const instance = spanner.instance(instanceId);
const database = instance.database(databaseId);
const request = ['ALTER TABLE Venues ADD COLUMN VenueDetails JSON'];
// Alter existing table to add a column.
const [operation] = await database.updateSchema(request);
console.log(`Waiting for operation on ${databaseId} to complete...`);
await operation.promise();
console.log(
`Added VenueDetails column to Venues table in database ${databaseId}.`,
);
// [END spanner_add_json_column]
}
module.exports.addJsonColumn = addJsonColumn;