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Connect to Greenhouse Data in Ruby
Connect to Greenhouse data in Ruby with ruby-dbi, dbd-odbc, and ruby-odbc.
The CData ODBC Driver for Greenhouse makes it easy to integrate connectivity to live Greenhouse data in Ruby. This article shows how to create a simple Ruby app that connects to Greenhouse data, executes a query, and displays the results.
Create an ODBC Connection to Greenhouse Data
If you have not already, first specify connection properties in an ODBC DSN (data source name). This is the last step of the driver installation. You can use the Microsoft ODBC Data Source Administrator to create and configure ODBC DSNs.
You need an API key to connect to Greenhouse. To create an API key, follow the steps below:
- Click the Configure icon in the navigation bar and locate Dev Center on the left.
- Select API Credential Management.
- Click Create New API Key.
- Set "API Type" to Harvest.
- Set "Partner" to custom.
- Optionally, provide a description.
- Proceed to Manage permissions and select the appropriate permissions based on the resources you want to access through the driver.
- Copy the created key and set APIKey to that value.
Installing Ruby and Necessary Gems
If you do not have Ruby installed, refer to the Ruby installation page. With Ruby installed, you will need to install the ruby-dbi, dbd-odbc, and ruby-odbc gems:
gem install dbi
gem install dbd-odbc
gem install ruby-odbc
Create a Ruby App with Connectivity to Greenhouse Data
Create a new Ruby file (for example: GreenhouseSelect.rb) and open it in a text editor. Copy the following code into your file:
#connect to the DSN
require 'DBI'
cnxn = DBI.connect('DBI:ODBC:CData Greenhouse Source','','')
#execute a SELECT query and store the result set
resultSet = cnxn.execute("SELECT Id, CandidateId FROM Applications WHERE Status = 'Active'")
#display the names of the columns
resultSet.column_names.each do |name|
print name, "\t"
end
puts
#display the results
while row = resultSet.fetch do
(0..resultSet.column_names.size - 1).each do |n|
print row[n], "\t"
end
puts
end
resultSet.finish
#close the connection
cnxn.disconnect if cnxn
With the file completed, you are ready to display your Greenhouse data with Ruby. To do so, simply run your file from the command line:
ruby GreenhouseSelect.rb
Writing SQL-92 queries to Greenhouse allows you to quickly and easily incorporate Greenhouse data into your own Ruby applications. Download a free trial today!
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Greenhouse ODBC Driver
The Greenhouse ODBC Driver is a powerful tool that allows you to connect with live data from Greenhouse, directly from any applications that support ODBC connectivity.
Access Greenhouse data like you would a database - read, write, and update Greenhouse 0, etc. through a standard ODBC Driver interface.
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