[Feature]: Decrease overall bundle size

[AdiRishi]

Current stats - Total Upload: 89.19 KiB / gzip: 25.73 KiB

Decreasing bundle size has a meaningful impact on performance in Cloudflare Workers. (Serverless runtimes in general)

How can we do this?

• Remove / replace Zod
• Remove / replace Hono

[AdiRishi]

This is the current makup of the bundle.

Treemap:

Sunburst Chart:

Flame Chart:

[ItsWendell]

Saw this issue in my feed, something relatively easy to reduce the bundle size could be to use hono/tiny (https://hono.dev/docs/api/presets#hono-tiny) and replacing Zod with Valibot (https://valibot.dev/guides/comparison/#comparison-with-zod), which also has a validator for Hono.

Edit: P.s. what tool did you use to annalyze bundle size here?

[ItsWendell]

I ran this through bundlejs.com - includes config / results? and got result of Bundle size is 32.4 kB -> 11.2 kB (gzip), which is already more than 50/60% decrease. I think the we can decrease this indeed even more by removing hono / vlalibot and writing simple parser / routers ourselves but we'll lose the benefit of readability / maintainability.

[AdiRishi]

Hey @ItsWendell , thank you for the PR!

Edit: P.s. what tool did you use to annalyze bundle size here?
I ran esbuild manually to bundle the worker (this is what wrangler does internally). I then uploaded the metafile into esbuild's bundle size analyzer

esbuild src/index.ts --bundle --outfile=out/index.js --minify --external:cloudflare:workers --metafile=out/meta.json

I think your PR is a great first step. Switching zod to Valibot is a great choice, I was thinking the same.

hono/tiny is a good intermediate step. I was actually thinking of switching to itty-router - https://itty.dev/
Feels more condusive to a small bundle size. Although I'm still trying to evaluate if this is a good decision. We can skip this for now.

Did you want to take the PR through all the way to completion? Very happy to review it and work with you. If not, let me know and I can take over.

[ItsWendell]

@AdiRishiHappy to help you bring the PR through completion. Glad you were eyeing valibot too! I don't have a lot of experience with itty-router, but at first glance, the DX of hono feels a lot cleaner. Honestly, not sure if switching and rewriting a huge chunk of your code to shave off even more bytes is worth it.