require 'aws-sdk'

# This assumes you have ~/.aws/credentials with a profile called production
# granting you read access to the DynamoDB resource.
client = Aws::DynamoDB::Client.new(region: 'us-west-2', profile: 'production')

MC_4501 = %w(
  4fd39d51-07c4-4b26-b5e6-e3f486017580
  0e626b9d-6cd7-4d45-b4d6-ff5c1e1389a7
  cb57c61c-d2f6-4331-aab2-40e9af9d075a
  d963eb66-16e0-4097-8b38-7c715285869b
  5a4c7946-0758-45a7-b26f-39fb0178bffe
  62a80e4f-af6b-47cd-a7ed-b789312cc077
  788b85c0-5fe3-484c-841f-06786ddc7fad
  a1ea63ee-b29e-401b-ac1e-6a227f33c294
  21badd4a-f2ee-4acb-884b-b25b346f8dc5
  f00b752f-80b7-4dd5-b012-3bb9b79ea8c4
  37c88f78-dbd5-4056-9462-f351f3036c60
  ca565d1f-4193-4851-92df-85cd6f30128a
)

MC_4501.each do |z|
  begin
    response =  client.query(
      table_name: "micropush-prod1-tokens",
      select: "ALL_ATTRIBUTES",
      key_condition_expression: "device_guid = :d",
      expression_attribute_values: {
        ":d" => z
      }
    )
    
    # Grab the first token.
    puts "#{z}, #{response.to_h[:items].first['token']}"
  rescue => e
    puts "#{z}, nil"
  end
end