esa-update.rb

require 'esa'

access_token = 'アクセストークン'
team = 'チーム名'
old_bucket_name = '旧バケット名'
new_bucket_name = '新バケット名'

client = Esa::Client.new(access_token: access_token, current_team: team)

page = 1
while true
  posts = client.posts(q: old_bucket_name, page: page)
  body = posts.body

  body['posts'].each do |post|
    new_body = post['body_md'].gsub(old_bucket_name, new_bucket_name)
    client.update_post(post['number'], name: post['name'], body_md: new_body, updated_by: 'esa_bot')
    puts "UPDATED: #{post['number']}"
    sleep 1
  end

  break unless body['next_page']
  page += 1
end