Configuração do projeto Worker-Deno
Configure um projeto que combine Deno para desenvolvimento local e Cloudflare Workers para implantação.
Configuração do projeto Worker-Deno é uma aula grátis de Edge Computing with Cloudflare Workers & Deno no CoddyKit. Esta é a aula 2 de 4. Você pode ler a aula completa abaixo gratuitamente — depois pratica ao vivo no navegador com um editor de código integrado e um tutor de IA 24/7. Faz parte do caminho de aprendizado de Edge Computing with Cloudflare Workers & Deno, e seu progresso é sincronizado entre a web e o app CoddyKit. O curso de Edge Computing with Cloudflare Workers & Deno inclui 4 aulas no total.
Partes desta aula ainda não foram traduzidas e aparecem em inglês.
Deno & Workers: Best of Both
Welcome! In this lesson, we'll learn how to set up a project that uses Deno for local development and Cloudflare Workers for deployment to the edge.
This powerful combination lets you leverage the best features of both platforms.
Why Combine Deno & Workers?
Deno offers a fantastic local developer experience with its built-in tools for formatting, linting, and testing. Cloudflare Workers, on the other hand, provide a serverless platform to deploy your code globally, close to your users.
A combined setup allows you to:
- Develop and test locally with Deno's robust tooling.
- Deploy your application to Cloudflare's low-latency edge network.
- Reuse core application logic across both environments.
Organizing Your Hybrid Project
A typical project structure for Deno and Workers involves separating entry points while sharing core logic. Here's a common layout:
src/: Contains your shared Deno-compatible logic.worker-entry.ts: The main entry point for your Cloudflare Worker.deno-local.ts: A script to run your application locally using Deno.wrangler.toml: Cloudflare Worker configuration file.
This keeps things tidy and manageable.
Cloudflare Worker Setup
We'll assume you have the Wrangler CLI installed and configured from previous lessons. This tool is essential for developing and deploying Cloudflare Workers.
Your wrangler.toml file will define how your Worker builds and deploys. For Deno projects, it often points to a bundled JavaScript output file.
Basic Deno Project Init
For local Deno development, you simply create your .ts or .js files. Deno doesn't require a package.json or a node_modules folder like Node.js.
You can also use a deno.json file to configure project-specific settings, like tasks, formatting rules, and imports.
Writing Reusable Code
The key to a successful hybrid project is writing core application logic that can run in both Deno and Worker environments.
- Use standard Web APIs (e.g.,
Request,Response,URL). - Avoid Node.js-specific APIs.
- Place this shared logic in a common directory, like
src/.
This ensures your code works seamlessly in both contexts.
Deno Local Server Example
Here's how you might set up a basic Deno server to run your shared logic locally. This allows for quick testing and iteration without deploying to the edge.
import { serve } from "https://deno.land/std/http/server.ts";
// This function would typically be imported from a shared 'src/' file.
function handleLocalRequest(request: Request): Response {
const url = new URL(request.url);
if (url.pathname === "/local-greet") {
return new Response("Hello from Deno local server!", { status: 200 });
}
return new Response("Not Found", { status: 404 });
}
console.log("Deno server running on http://localhost:8000/");
serve(handleLocalRequest, { port: 8000 });
Cloudflare Worker Entry Point
Your Cloudflare Worker's entry point (e.g., worker-entry.ts) will import and use the same shared logic. Wrangler will then bundle this Deno-compatible code into a single JavaScript file for deployment.
export default {
async fetch(request: Request): Promise<Response> {
const url = new URL(request.url);
// Imagine importing and using a shared function here
// import { handleRequest } from './src/handler.ts';
// return handleRequest(request);
// For this example, we'll use a simplified inline logic
if (url.pathname === "/edge-greet") {
return new Response("Hello from Cloudflare Worker!", { status: 200 });
}
return new Response("Not Found", { status: 404 });
},
};
Bundling Deno for Workers
Cloudflare Workers execute standard JavaScript. Since Deno often uses TypeScript and a URL-based module system, your Deno code needs to be transpiled (converted to JavaScript) and bundled into a single file.
Wrangler handles this process automatically if configured correctly, often using tools like esbuild internally. This ensures your Deno logic runs efficiently at the edge.
Project Setup Check
When setting up a project to use Deno for local development and Cloudflare Workers for deployment, what is a primary benefit of this hybrid approach?
Project Setup Recap
In this lesson, we explored how to structure a project that utilizes Deno for local development and Cloudflare Workers for edge deployment. We discussed the benefits of this approach, how to organize shared code, and saw examples of Deno local server and Worker entry points.
Next, we'll dive into implementing shared utility functions and business logic that can be reused across both environments.
Perguntas Frequentes
A aula “Configuração do projeto Worker-Deno” é grátis?
Sim — o texto completo de “Configuração do projeto Worker-Deno” é grátis para ler aqui na web. Para praticá-la interativamente (um editor de código integrado e um tutor de IA 24/7) e desbloquear o restante do curso de Edge Computing with Cloudflare Workers & Deno, atualize para CoddyKit PRO. O curso de Edge Computing with Cloudflare Workers & Deno inclui 4 aulas no total.
O que vou aprender em “Configuração do projeto Worker-Deno”?
Configure um projeto que combine Deno para desenvolvimento local e Cloudflare Workers para implantação. Você pratica Edge Computing with Cloudflare Workers & Deno com código prático que executa diretamente no navegador, e um tutor de IA 24/7 responde suas dúvidas enquanto trabalha na aula.
Preciso ter experiência prévia para começar Edge Computing with Cloudflare Workers & Deno?
Nenhuma experiência prévia é necessária. Edge Computing with Cloudflare Workers & Deno no CoddyKit é estruturado para alunos iniciantes até avançados, então você pode começar aqui ou desde o início e aprender no seu ritmo. Esta é a aula 2 de 4.
Quanto tempo leva a aula “Configuração do projeto Worker-Deno”?
A maioria das aulas CoddyKit leva cerca de 5–10 minutos. Cada uma é compacta e interativa, então você faz progresso constante e retoma exatamente de onde parou entre web e app.
Posso escrever e executar código nesta aula de Edge Computing with Cloudflare Workers & Deno?
Sim. Cada aula de Edge Computing with Cloudflare Workers & Deno inclui um editor de código integrado, então você escreve e executa código real direto no navegador e recebe feedback de IA instantaneamente — nenhuma configuração local necessária.
Todas as aulas deste curso
- Deno no Cloudflare Workers
- Configuração do projeto Worker-Deno
- Lógica e utilitários compartilhados
- Implantando e depurando a pilha integrada