This will break when someone changes something. Won't maintain this one-shot piece of spaghetti.
- Go to slackemojis.com, run scrape.js in console, copy pasta json to emojis.json
- mkdir dl;node dl.js
- Flowdock doesn't seem to support PNG or there was something weird, so
- mkdir converted
- sips (mac) or convert (linux) dl/_ -> converted/_.gif, mv dl/*.gif converted
- sips crashes for five or so pngs, just delete them and retry
- Upload single emoji manually, extract CSRF-token, session-cookie and organization id and put them in ul.sh
- node ul.js (forks 3,5k curls sequentally, takes a good while)