Doodle Clone

I built a scheduling poll application inspired by Doodle using Cloudflare Workers. You can try it out at doodle.elliotplant.com or check out the source code.

Why did I build this?

Coordinating meetings with multiple people is always a pain. You either send around a bunch of "what about Tuesday?" messages or create a complex spreadsheet that nobody wants to fill out. Doodle solved this problem elegantly, but I wanted to understand how to build something similar and experiment with Cloudflare Workers' capabilities.

What does it do?

The app lets you create scheduling polls with multiple date and time options using an interactive calendar. Participants can then vote Yes/Maybe/No for each time slot, and you get real-time results showing vote counts and participant names.

Key features include:

• Interactive poll creation with calendar interface
• Simple Yes/Maybe/No voting for each time slot
• Real-time results showing all votes
• Clean responsive UI that works on desktop and mobile
• No database required - uses Cloudflare Workers with in-memory storage

How did I build it?

The entire application runs on Cloudflare Workers using a modern tech stack:

• Hono - Lightweight web framework for the API
• chanfana - OpenAPI 3.1 integration for automatic API documentation
• Zod - Schema validation for type safety
• TypeScript - End-to-end type safety

The architecture is surprisingly simple. Poll data is stored in Cloudflare's key-value storage, and the UI is server-rendered HTML with vanilla JavaScript for interactivity. No complex frontend framework needed.

What's next?

This was a great experiment in building with Cloudflare Workers. The serverless model makes deployment incredibly simple, and the global edge network means the app is fast anywhere in the world.

I might add features like email notifications when polls are created or voted on, or integration with calendar applications to automatically schedule the winning time slot.