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Query Google Contacts Data as a MySQL Database in Node.js

Execute MySQL queries against Google Contacts data from Node.js.

You can use the CData Cloud Hub to query Google Contacts data through a MySQL interface. Follow the procedure below to create a virtual database for Google Contacts in the Cloud Hub and start querying using Node.js.

The CData Cloud Hub provides a pure MySQL, cloud-to-cloud interface for Google Contacts, allowing you to easily query live Google Contacts data in Node.js — without replicating the data to a natively supported database. As you query data in Node.js, the CData Cloud Hub pushes all supported SQL operations (filters, JOINs, etc) directly to Google Contacts, leveraging server-side processing to quickly return Google Contacts data.

Create a Virtual MySQL Database for Google Contacts Data

CData Cloud Hub uses a straightforward, point-and-click interface to connect to data sources and generate APIs.

  1. Login to Cloud Hub and click Databases.
  2. Select "Google Contacts" from Available Data Sources.
  3. Enter the necessary authentication properties to connect to Google Contacts.

    You can connect to Google APIs on behalf of individual users or on behalf of a domain. Google uses the OAuth authentication standard. See the "Getting Started" section of the help documentation for a guide.

  4. Click Test Database.
  5. Click Privileges -> Add and add the new user (or an existing user) with the appropriate permissions.

With the virtual database created, you are ready to connect to Google Contacts data from any MySQL client.

Query Google Contacts from Node.js

The following example shows how to define a connection and execute queries to Google Contacts with the MySQL module. You will need the following information:

  • Host name, or address, and port: The address of your instance of the Cloud Hub (myinstance.cdatacloud.net) and the port (3306)
  • Username and password: The username and password of a user you authorized on the Cloud Hub
  • Database name: The database you configured for Google Contacts (googlecontactsdb)

Connect to Google Contacts data and start executing queries with the code below:

var mysql      = require('mysql');
var fs         = require('fs');
var connection = mysql.createConnection({
  host     : 'myinstance.cdatacloud.net',
  database : 'googlecontactsdb',
  port	   : '3306',
  user     : 'admin',
  password : 'password',
  ssl      : {
    ca : fs.readFileSync('C:/certs/myCA.pem')
  }
});
connection.connect();
connection.query('SELECT * FROM Friends', function(err, rows, fields) {
  if (err) throw err;
  console.log(rows);
});

connection.end();