Connect to Brex Data in JRuby

JRuby is a high-performance, stable, fully threaded Java implementation of the Ruby programming language. The CData JDBC Driver for Brex makes it easy to integrate connectivity to live Brex data in JRuby. This article shows how to create a simple JRuby app that connects to Brex data, executes a query, and displays the results.

Configure a JDBC Connection to Brex Data

Before creating the app, note the installation location for the JAR file for the JDBC Driver (typically C:\Program Files\CData\CData JDBC Driver for Brex\lib).

JRuby natively supports JDBC, so you can easily connect to Brex and execute SQL queries. Initialize the JDBC connection with the getConnection function of the java.sql.DriverManager class.

Start by setting the Profile connection property to the location of the Brex Profile on disk (e.g. C:\profiles\Brex.apip). Next, set the ProfileSettings connection property to the connection string for Brex (see below).

Brex API Profile Settings

Register your application in the Brex Developer Portal at dashboard.brex.com to obtain a Client ID and Client Secret.

Built-in Connection String Designer

For assistance in constructing the JDBC URL, use the connection string designer built into the Brex JDBC Driver. Either double-click the JAR file or execute the jar file from the command-line.

java -jar cdata.jdbc.api.jar

Fill in the connection properties and copy the connection string to the clipboard.

Below is a typical JDBC connection string for Brex:

jdbc:api:Profile=C:\profiles\Brex.apip;Authscheme=OAuth;OAuthClientId=your_client_id;OAuthClientSecret=your_client_secret;CallbackUrl=your_callback_url;

Create a JRuby App with Connectivity to Brex Data

Create a new Ruby file (for example: APISelect.rb) and open it in a text editor. Copy the following code into your file:

require 'java'
require 'rubygems'
require 'C:/Program Files/CData/CData JDBC Driver for Brex 2018/lib/cdata.jdbc.api.jar'

url = "jdbc:api:Profile=C:\profiles\Brex.apip;Authscheme=OAuth;OAuthClientId=your_client_id;OAuthClientSecret=your_client_secret;CallbackUrl=your_callback_url;"
conn = java.sql.DriverManager.getConnection(url)
stmt = conn.createStatement
rs = stmt.executeQuery("SELECT Id, SourceId FROM AccountingRecords")
while (rs.next) do
  puts rs.getString(1) + ' ' + rs.getString(2)
end

With the file completed, you are ready to display your Brex data with JRuby. To do so, simply run your file from the command line:

jruby -S APISelect.rb

Writing SQL-92 queries to Brex allows you to quickly and easily incorporate Brex data into your own JRuby applications. Download a free trial today!