Env Vars

SITE_URL=<localhost or url of wherever you deploy this, e.g. https://super-cool-slackcast.vercel.app>
SLACK_TOKEN=<slack app api token>
SLACK_CHANNEL=<name of the channel>
ALLOWLISTED_FIDS=<comma separated list of fids that can use this action>
AIRSTACK_API_KEY=<if you don't want to use airstack's hub for validation, use another hub and remove from frames.ts>

Testing Locally

Run the frames.js debugger https://framesjs.org/guides/debugger

Run the dev server:

npm run dev

Go to http://localhost:3000/frames/

To the right of debug, impersonate an allowlisted fid and input the hash (not short hash) and fid of a cast.

Example:

hash: 0x76adb7d1152bce3a7c1793db648455c6cd40ae7a
fid: 3

Click 'Debug Install', then 'Run'

Deploy on Vercel

Next.js deployment documentation