Connect to Cohere Data in JRuby

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

Configure a JDBC Connection to Cohere 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 Cohere\lib).

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

Cohere API Profile Settings

Obtain your API key from your Cohere account at dashboard.cohere.com by navigating to the API Keys section.

Built-in Connection String Designer

For assistance in constructing the JDBC URL, use the connection string designer built into the Cohere 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 Cohere:

jdbc:api:Profile=C:\profiles\Cohere.apip;ProfileSettings='APIKey=your_api_key';

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

url = "jdbc:api:Profile=C:\profiles\Cohere.apip;ProfileSettings='APIKey=your_api_key';"
conn = java.sql.DriverManager.getConnection(url)
stmt = conn.createStatement
rs = stmt.executeQuery("SELECT Id, ConversationId FROM ChatMessages")
while (rs.next) do
  puts rs.getString(1) + ' ' + rs.getString(2)
end

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

jruby -S APISelect.rb

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