Reason hello world for Cloudflare Workers
Your Reason code in Demo.re, running on Cloudflare Workers
In addition to Wrangler you will need to install BuckleScript using npm or Yarn.
Wrangler
To generate using wrangler
wrangler generate projectname https://github.com/cloudflare/reason-worker-hello-world
Further documentation for Wrangler can be found here.
BuckleScript
After installing BuckleScript per the linked instructions above,
cd projectname
# assuming you installed BuckleScript globally, need to run this once
npm link bs-platform
npm run build
That will compile your code into src/Demo.bs.js, after which you can run wrangler publish to push it to Cloudflare.
If you just want to check for errors during development, npm run start will watch for filesystem changes and recompile.
For more information on how BuckleScript translates Reason and Ocaml to JavaScript, see the docs.