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cloudflare-demos

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Minimal Cloudflare product demos

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# cloudflare-demos

Minimal Cloudflare product demos — one small [Hono](https://hono.dev)-based
Worker per product.

**▶ Live site: https://cf-demos.yusuke.run** — browse every chapter's code,
and run eleven of them right in your browser. Each live chapter executes in a
sandboxed [Dynamic Worker](https://developers.cloudflare.com/dynamic-workers/)
with capability-based bindings, fully isolated per session.

[![cf-demos.yusuke.run](https://raw.githubusercontent.com/yusukebe/cloudflare-demos/main/.github/screenshot.png)](https://cf-demos.yusuke.run)

| Chapter                                      | Product          | What it shows                           |
| -------------------------------------------- | ---------------- | --------------------------------------- |
| [hello-hono](./demos/hello-hono)             | Workers          | Smallest Worker + `request.cf` metadata |
| [kv](./demos/kv)                             | Workers KV       | get / put / delete / list + TTL         |
| [d1](./demos/d1)                             | D1               | Migrations + SQL CRUD                   |
| [durable-objects](./demos/durable-objects)   | Durable Objects  | Per-name object, SQLite storage, RPC    |
| [r2](./demos/r2)                             | R2               | Streaming upload / download             |
| [queues](./demos/queues)                     | Queues           | Producer + consumer in one Worker       |
| [workflows](./demos/workflows)               | Workflows        | Durable steps, sleep, auto-retry        |
| [cron](./demos/cron)                         | Cron Triggers    | `scheduled()` handler                   |
| [static-assets](./demos/static-assets)       | Static Assets    | Static files + Worker API routes        |
| [service-bindings](./demos/service-bindings) | Service Bindings | Worker-to-Worker RPC, zero overhead     |
| [rate-limit](./demos/rate-limit)             | Rate Limiting    | Per-key limits on the edge              |
| [workers-ai](./demos/workers-ai)             | Workers AI       | LLM inference with one binding call     |
| [vectorize](./demos/vectorize)               | Vectorize        | Semantic search with embeddings         |
| [browser-run](./demos/browser-run)           | Browser Run      | Headless Chromium screenshot            |
| [images](./demos/images)                     | Images           | Inspect / resize / convert images       |
| [email](./demos/email)                       | Email Service    | Transactional send via `send_email`     |
| [flagship](./demos/flagship)                 | Flagship         | Feature flag evaluation with context    |

## Setup

```sh
pnpm install
```

Each chapter is an independent Worker:

```sh
pnpm -F <chapter> dev
```

See each chapter's README for routes and deploy steps.

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