BasicFetch.rb

#!/usr/bin/env ruby

# Load in the PrimalAccess class
require './PrimalAccess.rb'
require 'rubygems'

# We require this particular gem
#
# To install it:
#   gem install json
#
require 'json'

# Prints things out nicely
require 'pp'

# Constructs the PrimalAccess object so we can talk to Primal
primal = PrimalAccess.new("<your appId>", "<your appKey>",
                          "<your username>", "<your password>")

#
# Call the convenience method that POSTs our topic to Primal and
# then filters the content against the resulting interest network.
#
code, body = primal.postThenFilter("mobiledemo", "@Everything",
                                   "/computing/mobile")

#
# We've made this a separate function because it's going to be
# what we're going to be modifying most often.  The data service
# will return to us, a JSON payload as a regular order of 
# business.  What's going to change is how we manipulate that
# result.  For now, we're starting small
#
def processJSON(json)
  # "Pretty Print" the JSON response
  pp json
end

# If successful
if code == 200
  # Convert the payload to JSON
  json = JSON.parse(body)
  # Process the result
  processJSON(json)
else
  puts "Something went wrong #{code} -- #{body}"
end