test_api.rb

#!/usr/bin/env ruby

require 'json'

CLIENT_ID="eCGgvaJ3hKHD4kmPazSQrWVHGyZEsbSi"
CLIENT_SECRET="qGQ3sssbcEV5Ihmh"
res = `curl -s https://dnc-test.apigee.net/oauth/client_credential/accesstoken?grant_type=client_credentials -X POST -d "client_id=#{CLIENT_ID}&client_secret=#{CLIENT_SECRET}"`
p = JSON.parse(res)
puts p

# output =>
# {
#   "issued_at" : "1390408642776",
#   "application_name" : "fd72dc91-06cc-4929-8765-e627c05a6ea2",
#   "scope" : "",
#   "status" : "approved",
#   "api_product_list" : "[cloudflow]",
#   "expires_in" : "3599",
#   "developer.email" : "[email protected]",
#   "organization_id" : "0",
#   "token_type" : "BearerToken",
#   "client_id" : "eCGgvaJ3hKHD4kmPazSQrWVHGyZEsbSi",
#   "access_token" : "UvpBdlcHjdESSjNgyYSrA76os8UT",
#   "organization_name" : "dnc",
#   "refresh_token_expires_in" : "0",
#   "refresh_count" : "0"
# }%

token = p["access_token"]

# Using access token from before

fail_call = `curl -s https://dnc-test.apigee.net/v1/oauth/ -X GET`
puts "Fail call:"
puts fail_call
ok_call = `curl -s https://dnc-test.apigee.net/v1/oauth/ -X GET --header "Authentication: Bearer #{token}"`
puts "OK call:"
puts ok_call