Rails app that listens to a particular Slack outgoing wehbook, does something and post an incoming hook back to Slack.
Got the idea from this post: How to Build a Meme Generator Using Twilio MMS, Imgflip and Sinatra.
Clone this repository and set it up on a server somewhere.
Make sure it's accessible from the outside world, because Slack is going to post data to it.
Imgflip lets you generate memes. Simple as that. Sign up, you'll need it.
Put your credentials in .env
IMGFLIP_USERNAME=username
IMGFLIP_PASSWORD=itsasecret
Go to your Slack account and set up an outgoing webhook, and have it point to your server. Use trigger words slackmeme: and slackgame:. Also set up an incoming webhook for the channel you want. Put the incoming webhook URL, trigger words and channel in your .env. You can disable the outgoing hook for testing purposes. The meme list url is added here too because i'm too lazy to handle it in another way.
INCOMING_HOOK=slackurl
MEME_TRIGGER_WORD=slackmeme:
GAME_TRIGGER_WORD=slackgame:
CHANNEL=channel
OUTGOING_HOOK_ENABLED=1
MEME_LIST_URL=http://full.url.to/list
Slack will post to this app, every time the trigger words are used.
Based on the trigger words, the app will either:
slackmeme: give me the list please
This will post the URL to the list view (full url from your .env). The list view gives an overview of the Top 100 memes of the last 30 days from Imgflip, with a name, template image and example how to use it in Slack.
slackmeme: meme-name|line1|line2
This will generate the meme and post the URL into Slack. Slack will autoload the image and fun will be had.
line1 and line2 are optional (e.g. meme-name||line2 or meme-name|line1)
The meme-name is partially matched with the full name from the list (e.g. Ski|line1|line2 matches the full Super Cool Ski Instructor|line1|line2). If more than one name is matched, slackmeme will take the first one.
slackgame: rock-paper-scissors: :hand:
and it will post
SlackGame: I have :v: You win! (<your name> | 12 games | 2 wins | 4 draws)
...
Have fun!