gistfile1.rb

client = Google::APIClient.new
path_to_key_file = 'xxxx-privatekey.p12'
passphrase = 'xxxx'
key = Google::APIClient::PKCS12.load_key(path_to_key_file, passphrase)
asserter = Google::APIClient::JWTAsserter.new(
        '[email protected]',
        'https://www.googleapis.com/auth/calendar.readonly',
        key)
client.authorization = asserter.authorize("[email protected]")

service = client.discovered_api('calendar', 'v3')

page_token = nil
timeMin = Time.now.strftime("%Y-%m-%dT%H:%I:%M%z")
timeMax = (Time.now + 86400).strftime("%Y-%m-%dT%H:%I:%M%z")
parameters = {'calendarId' => '[email protected]',  'timeMin' => timeMin, 'timeMax' => timeMax}
output = []
begin
    result = client.execute(:api_method => service.events.list, :parameters => parameters)
    result.data.items.each do |e|
    #Convert to hash
        output << JSON.parse(e.to_json)
    end
end until (parameters['pageToken'] = result.data.next_page_token).nil?
test = { events: output }
puts test