02 - Your First Cloudflare Worker: Fetch Handler, Wrangler and Deploy

A step-by-step guide to create, test and deploy a Cloudflare Worker from scratch: from the fetch handler to wrangler deploy, including environment variables, secrets, and advanced routing.

What you'll learn

• Setup dell'ambiente di sviluppo con Wrangler CLI e TypeScript
• Struttura del file wrangler.toml e tutti i campi principali
• Il fetch handler: request, env, ExecutionContext in dettaglio
• Routing manuale e con itty-router per URL patterns complessi
• Variabili d'ambiente, secrets e come accederli in TypeScript type-safe

This article is part of the Edge Computing series on federicocalo.dev.

Read the full article

The complete article (12 min read) with code examples, diagrams, and practical exercises is available here:

➡️ 02 - Your First Cloudflare Worker: Fetch Handler, Wrangler and Deploy

https://federicocalo.dev/en/blog/first-cloudflare-worker-fetch-handler-deploy

By Federico Calò — Software Developer & Technical Writer