Learn CLOUDFLARE-WORKERS with Real Code Examples

Sign up for Cloudflare account

Install Wrangler CLI (`npm install -g wrangler`)

Authenticate Wrangler with Cloudflare account

Create a new project via `wrangler generate`

Deploy function via `wrangler publish`

Install Node.js and npm

Install Wrangler CLI

Sign in to Cloudflare account

Configure project with `wrangler.toml`

Deploy worker via `wrangler publish`

wrangler.toml - project configuration

package.json - dependencies for JS/TS projects

src/ - function source code

dist/ - compiled output

tests/ - test files

wrangler generate -> create project

wrangler dev -> run locally

wrangler publish -> deploy globally

wrangler kv:namespace create -> KV setup

wrangler secret put -> store secrets

Supports UTF-8 payloads

Localized responses handled in code

Globally distributed edge nodes for international users

Integration with external i18n services possible

Flexible for multi-language apps

Accessible via HTTP globally

Supports CORS for APIs

Works on all Cloudflare edge locations

Secrets and KV access controlled via Cloudflare

CLI and API access for developers

Not handled directly - backend/edge framework

Serve static assets via Workers Sites integration

Return JSON or HTML for frontend consumption

Integrate with frontend frameworks

Optional template rendering via Workers Sites

Ephemeral stateless by default

Persistent state via KV or Durable Objects

Secrets stored via Wrangler secret management

Global consistency via Durable Objects

No local server state required

Process JSON, HTML, and binary payloads

Read/write to KV or Durable Objects

Integrate with external APIs

Log via Cloudflare analytics and console

Perform lightweight transformations at edge