npm install -g yo generator-botkit
mkdir mybot && cd mybot && yo botkit
When asked for messaging platform, select slack
npm start
If you set it up properly, you would see on consle:
Webhook endpoint online: http://localhost:3000/api/messagesNow,
Create a Slack app (if you don't already have one). Give it a nice name and select the workspace you would like it to be added to:
Once created, you will see the below screen. Select Bots:
Once done, you need to navigate to Basic Information item in the sidebar:
Scroll down to Display Information block and update the display info for the bot:
Scroll up to App Credentials block and copy the Signing Secret to be used later in some place:
Next you need to navigate to OAuth & Permissions item in the sidebar and scroll down to Scopes, add an OAuth Scope i.e channel:history:
Once added, you can scroll up to OAuth Tokens & Redirect URLs and hit the Install App to Workspace button:
Hit Allow in the next screen:
Once you are back to the settings page, copy the Bot User OAuth Access Token to be used later in some place:
Awesome 🎉 Now you have both the CLIENT_SIGNING_SECRET and BOT_TOKEN with you. You also need GIPHY_API_KEY for this bot, about which you can read here
At this point you should go ahead and deploy to Heroku, filling in the details when asked during app creation
You will have access to a publically available url. For example here, we will use https://example.heroku.com/
Once ready, you need to navigate to OAuth & Permissions item in the sidebar and add this url to Redirect URLs:
Next, you need to navigate to Event Subscriptions item in the sidebar, enable events and add your url with /api/messages appended to it. i.e https://example.heroku.com/api/messages :
The URL will be validated so that the bot is up or not.
Next, you need to navigate to Interactivity & Shortcuts item in the sidebar, enable Interactivity and add your url with /api/messages appended to it. i.e https://example.heroku.com/api/messages to both Request URL and Options Load URL:
That should be all. Now code your bot and deploy to heroku. You should be able to interact with it inside Slack.