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[Ruby Meditation #22] Building Slack Apps with ...
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Kirill Shevchenko
May 19, 2018
Programming
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[Ruby Meditation #22] Building Slack Apps with Ruby
Kirill Shevchenko
May 19, 2018
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Transcript
Building Slack Building Slack Apps with Apps with Ruby Ruby
Integrations Overview Integrations Overview Slash Commands Custom Integrations Bot Users
Incoming Webhooks
Incoming webhooks Incoming webhooks A way to send messages to
Slack https://slack.com/apps/A0F7XDUAZ-incoming-webhooks
Incoming webhooks Incoming webhooks require 'slack/incoming/webhooks' slack = Slack::Incoming::Webhooks.new( 'WEBHOOK_URL'
) slack.post 'Useful information' https://github.com/shoyan/slack-incoming-webhooks
Example Example
Slash commands Slash commands A way to add /slash commands
Creating a new Slack App Command request authorization Command validation and response
Creating a Slack App Creating a Slack App https://api.slack.com/apps
Response Permission Response Permission
Adding a command Adding a command
Local HTTPS-Proxy Local HTTPS-Proxy ./ngrok http 9292
Response Sample Response Sample require 'sinatra' post '/' do 'OK'
end
None
Legacy custom integrations Legacy custom integrations Custom integrations Custom integrations
https://api.slack.com/custom-integrations/legacy-tokens
Bot users Bot users
Authentication Authentication
{ "access_token": "xoxp-XXXXXXXX-XXXXXXXX-XXXXX", "scope": "commands,bot", "team_name": "Team Installing Your Bot",
"team_id": "XXXXXXXXXX", "bot":{ "bot_user_id":"UTTTTTTTTTTR", "bot_access_token":"xoxb-XXXXXXXXXXXX-TTTTTTTTTTTTTT" } } Response Response
Tools Tools https://github.com/slack-ruby (not affiliated with Slack) slack-ruby-bot slack-ruby-bot Provides
DSL for building text commands. slack-ruby-client slack-ruby-client A Ruby and command-line client for the Slack Web and Real Time Messaging APIs.
slack-ruby-bot slack-ruby-bot require 'slack-ruby-bot' class PongBot < SlackRubyBot::Bot command 'ping'
do |client, data, match| client.say(text: 'pong', channel: data.channel) end end PongBot.run A Minimal Bot SLACK_API_TOKEN=... bundle exec ruby pongbot.rb
Slack Web API Slack Web API The Web API is
a collection of , all with URLs in the form: HTTP RPC-style methods https://slack.com/api/FAMILY_METHOD.method
slack-ruby-client slack-ruby-client client = Slack::Web::Client.new( token: 'SLACK_BOT_TOKEN' ) client.chat_postMessage( channel:
'#general', text: 'Hello World' ) https://api.slack.com/methods/chat.postMessage
Web API rate limit Web API rate limit https://api.slack.com/methods/chat.update
Interactive messages Interactive messages https://api.slack.com/interactive-messages
Message Formatting Message Formatting https://api.slack.com/docs/messages/builder
Walkie Bot Walkie Bot Prototyping Tool for Slack Bots https://github.com/FoundersAS/walkiebot
None
Slack RTM Slack RTM The Real Time Messaging API is
a WebSocket-based API that allows you to receive from Slack in real time. events
rtm.connect rtm.connect Workspace https://api.slack.com/methods/rtm.connect wss://slack-msgs.com/websocket/uid These URLs are only valid
for 30 seconds, so connect quickly!
client = Slack::RealTime::Client.new( token: 'SLACK_BOT_TOKEN' ) client.on :message do |data|
client.message( channel: data.channel, text: "Hi <@#{data.user}>!" ) end client.start!
Ruby Websocket Clients Ruby Websocket Clients Faye::Websocket websocket-client-simple
Multiple connections Multiple connections Workspace 1 Workspace 2 Workspace N
wss://slack-msgs.com/websocket/uid wss://slack-msgs.com/websocket/uid wss://slack-msgs.com/websocket/uid
Concurrent Processing Concurrent Processing eventmachine celluloid concurrent-ruby
slack-ruby-client slack-ruby-client Slack::RealTime.configure do |config| config.concurrency = Slack::RealTime::Concurrency::Celluloid # config.concurrency
= Slack::RealTime::Concurrency::Eventmachine end
None
Alternatives Alternatives https://github.com/slackapi/node-slack-sdk https://github.com/BlakeWilliams/Elixir-Slack
None
Testing? Testing?
API Updates API Updates https://slack.com/apps/A0F81R7U7-rss
Community Community https://community.botkit.ai
Thanks! Thanks! kirillshevch kirillshevch @kirill_shevch @kirill_shevch @kirill_shevch @kirill_shevch