Ruby AWS sdk - Dynamo put and get

dynamo.rb

require 'aws-sdk'
require 'securerandom'
require 'pp'

$dynamo = AWS::DynamoDB.new(
  access_key_id: 'blah',
  secret_access_key: 'blah/blah/blah',
  )

$table = $dynamo.tables['some-table-name-here']
$table.load_schema

def create_and_find()
  session_id = SecureRandom.uuid
  puts "creating #{session_id}"
  session = $table.items.create('sid' => session_id)
  puts "created session #{session.attributes['sid']}"

  found_session = $table.items[session_id]
  puts "found_session:"
  pp found_session.attributes.to_hash(consistent_read: true)
end

25.times { create_and_find }