Why Deno Deploy? Because... Why Not?

  • 🚀 Zero config required (Yes, you read that right!)
  • 🌍 Global distribution out of the box
  • ⚡ Lightning-fast cold starts
  • 🔒 Secure by default (No more "Oops, I left the backdoor open")
  • 🦕 Built on Deno, so it's TypeScript-friendly and module-centric

Let's Get This Serverless Party Started!

Alright, time to roll up our sleeves and dive into the code. But first, a moment of silence for all the config files we won't be writing today.

Step 1: Set Up Your Deno Environment

If you haven't already, install Deno. It's as easy as pie (arguably easier, because who's actually made a pie from scratch?):


# For Mac/Linux users
curl -fsSL https://deno.land/x/install/install.sh | sh

# For Windows users
iwr https://deno.land/x/install/install.ps1 -useb | iex

Once installed, verify it by running:


deno --version

Step 2: Create Your Serverless Function

Now, let's create a simple "Hello, Serverless World!" function. Create a file named app.ts and add the following code:


import { serve } from "https://deno.land/[email protected]/http/server.ts";

function handler(req: Request): Response {
  const url = new URL(req.url);
  const name = url.searchParams.get("name") || "Serverless Enthusiast";
  return new Response(`Hello, ${name}! Welcome to the serverless party!`);
}

serve(handler);

Look at that beauty! No imports from your local filesystem, no package.json, no node_modules black hole. Just pure, unadulterated serverless goodness.

Step 3: Deploy to Deno Deploy (Mind-blowing, I Know)

Here comes the magic part. Head over to https://dash.deno.com, sign in, and create a new project. Choose "Deploy from URL" and paste the raw URL of your app.ts file (if it's on GitHub, for example).

Alternatively, you can use the Deno CLI to deploy:


deno run --allow-read --allow-write --allow-env --allow-net --allow-run https://deno.land/x/deploy/deployctl.ts deploy --project=your-project-name app.ts

And... drumroll, please... 🥁

Voilà! You're Serverless!

Congratulations! You've just deployed a serverless function faster than it takes to microwave popcorn. Your app is now running on Deno's global network, ready to serve requests from anywhere in the world.

But Wait, There's More!

Deno Deploy isn't just about speed (although it's pretty darn fast). Here are some cool features that'll make you the talk of the serverless town:

1. TypeScript? More Like TypeRight!

Deno Deploy supports TypeScript out of the box. No transpilation, no config files, just write TypeScript and deploy. It's like JavaScript, but with a PhD.

2. Modules, Modules Everywhere

Forget about npm install. With Deno Deploy, you can import modules directly from URLs. It's like having the entire internet as your package manager.

3. WebAssembly Support

Want to run some high-performance code? Deno Deploy supports WebAssembly, letting you bring the power of languages like Rust to your serverless functions.

4. Built-in Key-Value Store

Need to store some data? Deno Deploy includes a built-in key-value store. It's like having a database without the database drama.


import { Deno } from "https://deno.land/x/deno_deploy/mod.ts";

// Store a value
await Deno.kv.set(["users", "123"], { name: "Alice", age: 30 });

// Retrieve a value
const user = await Deno.kv.get(["users", "123"]);
console.log(user);

Potential Pitfalls (Because Nothing's Perfect)

Before you go all in on Deno Deploy, keep these points in mind:

  • It's not Node.js. If your project heavily relies on Node-specific APIs, you might need to refactor.
  • The ecosystem is growing but still smaller than Node's. You might not find direct replacements for all your favorite npm packages.
  • Cold start times are fast, but not zero. For extremely latency-sensitive applications, you might need to consider other options.

The Serverless Bottom Line

Deno Deploy is changing the game in serverless computing. It combines the simplicity of serverless with the power of Deno, wrapped up in a globally distributed package. Whether you're building a small API or a full-fledged web application, Deno Deploy offers a compelling platform that's worth considering.

So, the next time someone asks you to whip up a serverless app in minutes, you can confidently say, "Hold my keyboard!" and dive into Deno Deploy. Who knows? You might even have time left over to finally brew that perfect cup of coffee.

"In the world of serverless, Deno Deploy is like finding a shortcut in a video game. Suddenly, everything becomes easier, faster, and way more fun!"

Ready to Level Up Your Serverless Game?

Here are some resources to take your Deno Deploy skills to the next level:

Now go forth and deploy! Your serverless adventure awaits, and remember: with great power comes great responsibility... to write awesome code and impress your colleagues. Happy coding!