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Query MariaDB Data as a MySQL Database in Node.js

Execute MySQL queries against MariaDB data from Node.js.

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

The CData Cloud Hub provides a pure MySQL, cloud-to-cloud interface for MariaDB, allowing you to easily query live MariaDB 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 MariaDB, leveraging server-side processing to quickly return MariaDB data.

Create a Virtual MySQL Database for MariaDB 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 "MariaDB" from Available Data Sources.
  3. Enter the necessary authentication properties to connect to MariaDB.

    The Server and Port properties must be set to a MariaDB server. If IntegratedSecurity is set to false, then User and Password must be set to valid user credentials. Optionally, Database can be set to connect to a specific database. If not set, the tables from all databases are reported.

  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 MariaDB data from any MySQL client.

Query MariaDB from Node.js

The following example shows how to define a connection and execute queries to MariaDB 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 MariaDB (mariadbdb)

Connect to MariaDB 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 : 'mariadbdb',
  port	   : '3306',
  user     : 'admin',
  password : 'password',
  ssl      : {
    ca : fs.readFileSync('C:/certs/myCA.pem')
  }
});
connection.connect();
connection.query('SELECT * FROM Orders', function(err, rows, fields) {
  if (err) throw err;
  console.log(rows);
});

connection.end();