atlantic.net describe instances in Ruby

script.rb

## Lampros Chaidas
## 01/01/2015
## Sample code to list instances from Atlantic.net using Ruby

# tested with Ruby 1.9.3
require 'rest_client'
require 'digest'
require 'uuidtools'

# replace with your access key
ACSAccessKeyId = "replace-with-your-access-key"

# replace with your private key
api_private_key = "replace-with-your-private-key"

# get the current time in unix epoch i.e. 1420184854
current_time = Time.now.to_i

# get a GUID
Rndguid = UUIDTools::UUID.random_create.to_s

# concatenate the random GUID to the end of the timestamp - the result should look like this:
string_to_sign = current_time.to_s + Rndguid

# Use the api private key to create a SHA256 hash and Base64 encode the whole thing
signature = Digest::HMAC.base64digest(string_to_sign, api_private_key, Digest::SHA256)

# set the action you want to use
action = "list-instances"

# got the URI from http://kb.atlantic.net/api-methods-php-example/
uri = "https://cloudapi.atlantic.net/api.php"

response = RestClient.post( 
           uri,
           'Version' => '2010-12-30',
           'ACSAccessKeyId' => ACSAccessKeyId,
           'Format' => 'json',
           'Timestamp' => current_time,
           'Rndguid' => Rndguid,
           'Signature' => signature,
           'Action' => action)

puts response
puts response.code