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RubyでSlackの絵文字(emoji)を一括エクスポート

Last updated at Posted at 2019-06-27

はじめに

  • タイトルの通りです。
  • Slackのワークスペースを引っ越しするというイベントがございました。
  • すでに諸先輩方に書いていただいたものをRubyで書いてみただけです。

Special Thanks

こちらでSlackのAPI(emoji.list)をお試しいただけます

作品

require 'open-uri'
require 'json'
require 'pathname'

# https://api.slack.com/apps
# |> Create New App
# |> Add features and functionality
# |> Permissions
# |> Scopes
# |> emoji:read
# |> xoxp-****
# |> replace TOKEN
TOKEN = 'とーくん'
URL = "https://slack.com/api/emoji.list?token=#{TOKEN}"
IMAGES_DIR = Pathname('images')

IMAGES_DIR.mkpath

body = open(URL, &:read)
emojis = JSON.parse(body)['emoji']

f = ->(_, url) { url.start_with?('alias') }
size = emojis.reject(&f).size

emojis.reject(&f).each.with_index(1) do |(key, url), i|
  #puts "#{key} => #{url}"
  extention = url.split('.').last

  filepath = IMAGES_DIR + "#{key}.#{extention}"
  filepath.binwrite open(url, &:read)

  print "%3d %%\e[G" % (i*100/size)
end

動作確認環境

$ ruby -v
ruby 2.6.1p33 (2019-01-30 revision 66950) [x86_64-darwin18]
  • MacBook Pro(13-inch,2017,Two Thunderbolt 3 ports)
  • macOS Mojave バージョン 10.14.5
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