Update README with basics and add Data API quickstart

Author: jradcliff

README.md

@@ -1,2 +1,15 @@
-# nodejs-docs-samples
+# Google Analytics Node.js Samples
+
+Node.js samples for [Google Analytics APIs][ga].
+
+Check out the `README.md` in one of the following directories to get started:
+
+- Admin API: [README.md](google-analytics-admin/README.md)
+- Data API: [README.md](google-analytics-data/README.md)
+
+## Contributing
+
+Contributions welcome! See the [Contributing Guide](CONTRIBUTING.md).
+
+[ga]: https://developers.google.com/analytics
 

google-analytics-data/package.json

@@ -0,0 +1,30 @@
+{
+  "name": "nodejs-analytics-data",
+  "private": true,
+  "license": "Apache-2.0",
+  "author": "Google LLC",
+  "engines": {
+    "node": ">=14.0.0"
+  },
+  "files": [
+    "*.js"
+  ],
+  "scripts": {
+    "test": "c8 mocha --timeout 600000 test/*.js"
+  },
+  "dependencies": {
+    "@google-analytics/data": "^4.0.1",
+    "google-auth-library": "^9.0.0",
+    "google-gax": "^3.0.0",
+    "http": "^0.0.1-security",
+    "lint": "^0.8.0",
+    "open": "^8.0.0",
+    "server-destroy": "^1.0.1",
+    "url": "^0.11.0"
+  },
+  "devDependencies": {
+    "c8": "^7.1.0",
+    "chai": "^4.2.0",
+    "mocha": "^8.0.0"
+  }
+}

google-analytics-data/quickstart.js

@@ -0,0 +1,86 @@
+// 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));