quickstart.js

// 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';

/**
 * Google Analytics Data API sample quickstart application.
 * This application demonstrates the usage of the Analytics Data API using
 * service account credentials.
 *
 * Before you start the application, please review the comments starting with
 * "TODO(developer)" and update the code to use correct values.
 *
 * Usage:
 * npm install
 * node quickstart.js
 */

function main(propertyId = 'YOUR-GA4-PROPERTY-ID') {
  // [START analyticsdata_quickstart]
  /**
   * TODO(developer): Uncomment this variable and replace with your
   *   Google Analytics 4 property ID before running the sample.
   */
  // propertyId = 'YOUR-GA4-PROPERTY-ID';

  // [START analyticsdata_run_report_initialize]
  // Imports the Google Analytics Data API client library.
  const {BetaAnalyticsDataClient} = require('@google-analytics/data');

  // Using a default constructor instructs the client to use the credentials
  // specified in GOOGLE_APPLICATION_CREDENTIALS environment variable.
  const analyticsDataClient = new BetaAnalyticsDataClient();
  // [END analyticsdata_run_report_initialize]

  // Runs a simple report.
  async function runReport() {
    // [START analyticsdata_run_report]
    const [response] = await analyticsDataClient.runReport({
      property: `properties/${propertyId}`,
      dateRanges: [
        {
          startDate: '2020-03-31',
          endDate: 'today',
        },
      ],
      dimensions: [
        {
          name: 'city',
        },
      ],
      metrics: [
        {
          name: 'activeUsers',
        },
      ],
    });
    // [END analyticsdata_run_report]

    // [START analyticsdata_run_report_response]
    console.log('Report result:');
    response.rows.forEach((row) => {
      console.log(row.dimensionValues[0], row.metricValues[0]);
    });
    // [END analyticsdata_run_report_response]
  }

  runReport();
  // [END analyticsdata_quickstart]
}

process.on('unhandledRejection', (err) => {
  console.error(err.message);
  process.exitCode = 1;
});
main(...process.argv.slice(2));