shuffle.rb

require 'vermonster'

cheddar = Vermonster::Client.new(:id => client_id, :secret => client_secret)
cheddar.use_token!(user_token)

tasks_id = []
tasks = cheddar.lists.find(1619).tasks

tasks.each do |task|
  tasks_id.push(task['id'])
end
tasks_id.shuffle!
# cheddar.tasks.reorder(1619, tasks_id)
post = ""
tasks_id.each do |id|
  post += "task[]=#{id}&"
end

puts post.chomp