Query Open Exchange Rates Data as a MySQL Database in Node.js

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Execute MySQL queries against Open Exchange Rates data from Node.js.

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

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

Create a Virtual MySQL Database for Open Exchange Rates Data

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

  1. Login to Connect Cloud and click Databases.
  2. Select "Open Exchange Rates" from Available Data Sources.
  3. Enter the necessary authentication properties to connect to Open Exchange Rates.

    The Open Exchange Rates API supports basic authentication with an App Id. After you register, your App Id is displayed in your account dashboard. Set this to the AppId connection property.

  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 Open Exchange Rates data from any MySQL client.

Query Open Exchange Rates from Node.js

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

  • Host name, or address, and port: The address of your instance of the Connect Cloud (myinstance.cdatacloud.net) and the port (3306)
  • Username and password: The username and password of a user you authorized on Connect Cloud
  • Database name: The database you configured for Open Exchange Rates (openexchangeratesdb)

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

connection.end();