This ruby script connects to the Platform161 API. I've used this functionality to extract data from Platform161

Platform161-API.rb

##############################################################################
#
#    Author: Egbert Pot | WebOak | www.weboak.nl
# 
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU Affero General Public License as
#    published by the Free Software Foundation, either version 3 of the
#    License, or (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU Affero General Public License for more details.
#
#    You should have received a copy of the GNU Affero General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
##############################################################################

require "net/https"
require "uri"
require "json"

@token = nil

# This method handles all communication with the API
def post_to_api(action, parameters, token = nil)
	uri = URI.parse("https://api.platform161.com/api/v2/#{action}")
	http = Net::HTTP.new(uri.host, uri.port)
	http.set_debug_output $stderr
	http.use_ssl = true
	http.verify_mode = OpenSSL::SSL::VERIFY_NONE

	request = Net::HTTP::Post.new(uri.request_uri)
	request.add_field 'Content-Type', 'application/json'
	request.add_field('Content-Length', parameters.length)
	if token != nil
		request.add_field('PFM161-API-AccessToken', token)
	end
	request.body = parameters
	response = http.request(request)
end

# This method gets the token from Platform161. This token is needed
# for every API request
def authenticate
	action = "access_tokens"
	credentials = {
		"user" => "YourUsername",
		"password" => "YourPassword",
		"client_id" => "YourClientID",
		"client_secret" => "YourSecretKey"		
	}
	credentials = credentials.to_json

	resp_for_token = post_to_api(action, credentials)
	resp_for_token = JSON.parse(resp_for_token.body)
	@token = resp_for_token["token"]
end

# Call this method everytime you would like to request data from Platform161
# This method checks if the authenticaton token is already present. If not, it 
# will first authenticate using the credentials above
def data_from_api(action, parameters)
	authenticate unless @token != nil
	post_to_api(action, parameters, @token)
end

action = "advertiser_reports"
parameters = '{"advertiser_report":{"interval":"daily","period":"last_30_days","groupings":["campaign"],"measures":["impressions","clicks","conversions","ctr"]}}'
response = data_from_api(action, parameters)
puts response.inspect