Connect to Hubstaff Data in JRuby

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

Configure a JDBC Connection to Hubstaff 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 Hubstaff\lib).

JRuby natively supports JDBC, so you can easily connect to Hubstaff 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 Hubstaff Profile on disk (e.g. C:\profiles\Hubstaff.apip). Next, set the ProfileSettings connection property to the connection string for Hubstaff (see below).

Hubstaff API Profile Settings

Register an OAuth application at developer.hubstaff.com/apps to obtain your 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 Hubstaff 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 Hubstaff:

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

Create a JRuby App with Connectivity to Hubstaff 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 Hubstaff 2018/lib/cdata.jdbc.api.jar'

url = "jdbc:api:Profile=C:\profiles\Hubstaff.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 OrganizationId, Id FROM AttendanceSchedules")
while (rs.next) do
  puts rs.getString(1) + ' ' + rs.getString(2)
end

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

jruby -S APISelect.rb

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