quickstart.js

// Copyright 2018 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';

// sample-metadata:
//   title: Quickstart
//   usage: node quickstart.js <instanceId> <tableId>

async function main(
  INSTANCE_ID = 'my-instance', // ID of the Cloud Bigtable instance
  TABLE_ID = 'my-table' // ID of the Cloud Bigtable table
) {
  // [START bigtable_quickstart]
  // Imports the Google Cloud client library
  const {Bigtable} = require('@google-cloud/bigtable');

  const bigtable = new Bigtable();

  async function quickstart() {
    // Connect to an existing instance:my-bigtable-instance
    const instance = bigtable.instance(INSTANCE_ID);

    // Connect to an existing table:my-table
    const table = instance.table(TABLE_ID);

    // Read a row from my-table using a row key
    const [singleRow] = await table.row('r1').get();

    // Print the row key and data (column value, labels, timestamp)
    const rowData = JSON.stringify(singleRow.data, null, 4);
    console.log(`Row key: ${singleRow.id}\nData: ${rowData}`);
  }
  quickstart();
  // [END bigtable_quickstart]
}

const args = process.argv.slice(2);
main(...args).catch(console.error);