# 🔥 Angular 22's New `@Service` Decorator What Changed & Why It Matters

> I've been using `@Injectable` for years. We all have. It's just... Angular. You don't question it.
> But Angular 22 ships `@Service` and after playing with it, I realized it's a genuinely different way of thinking.

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## ⚙️ How Angular Creates the Instance

| | `@Injectable` | `@Service` |
|---|---|---|
| **Instantiation** | Angular calls `new YourClass()` | Uses the return value of your factory directly |
| **Class body** | Holds your real logic | Becomes pure TypeScript types |
| **Control** | Angular-managed | You control what gets exposed |

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## 🔒 Privacy Without the Boilerplate

With `@Injectable`, you need extra keywords and annotations to hide your internals.

With `@Service`, any variable inside the factory **lives in the closure** private by default, because of how JavaScript already works. No extra effort required.

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## 🎯 The Ability to Destructuring

// ❌ @Injectable   
const { getData } = myService; // trap!

// ✅ @Service factory   destructuring just works
const { getData } = myService; // no binding needed

In `@Service` factories, there's no class instance which means **destructuring just works**. No `.bind()`, no arrow function workarounds.

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## 📦 What the Class Body Actually Does Now

- **`@Injectable`** → holds your real runtime logic
- **`@Service`** → class body is purely for TypeScript types; actual logic moves into the factory

Takes a minute to adjust, but it ends up feeling clean.

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## 🔄 You Control What Gets Exposed

@Service({
    autoProvided: true,
     factory: () => {
    const secret = 'hidden';
    const publicMethod = () => `result`;

    return { publicMethod }; // expose only what you want
  }
})
class MyService {...}

`@Injectable` always returns the full class instance.
`@Service` lets you return an object, a subset of methods, or something entirely different.

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## ✍️ Trade-offs to Know

- ➕ Better encapsulation out of the box
- ➕ No `this` binding issues
- ➕ Leaner public API surface
- ➖ A bit more upfront boilerplate (maintaining types + factory logic separately)

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## 💡 Bottom Line

Angular keeps pushing toward code that's easier to reason about. `@Service` isn't a replacement for `@Injectable` overnight but if you care about **encapsulation** and **predictable behavior**, it's worth a proper look.

## Hint:
I might be mistaken in some places. I’m still working on figuring out how to use this factory and destructuring in a real-world example and scenario.

### IT Would be awesome if you see something wrong and leave a comment on it so we all learn
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