# Bind

**Kind:** Function

**Source:** [`packages/common/decorators/core/bind.decorator.ts`](https://github.com/nestjs/nest/blob/master/packages/common/decorators/core/bind.decorator.ts#L11)

**Part of:** [Common](subsystem-packages-common)

Decorator that binds *parameter decorators* to the method that follows.

Useful when the language doesn't provide a 'Parameter Decorator' feature
(i.e., vanilla JavaScript).

`Bind` creates a method decorator that attaches the supplied decorators to the method it decorates. It is primarily used to apply parameter-oriented decorators in environments such as vanilla JavaScript, where parameter decorator syntax is not available.

## Signature

```ts
function Bind(decorators: any[]): MethodDecorator
```

## Parameters

| Name | Type |
|---|---|
| `decorators` | `any[]` |

**Returns:** `MethodDecorator`

## Diagram

```mermaid
graph LR
  A[Bind decorator factories] --> B[@Bind(...decorators)]
  B --> C[Following method]
  C --> D[Apply supplied decorators]
  D --> E[Method metadata / runtime behavior]
```

## Usage

```ts
import { Bind, Controller, Get, Param } from '@nestjs/common';

@Controller('users')
export class UsersController {
  @Get(':id')
  @Bind(Param('id'))
  findOne(id: string) {
    return { id };
  }
}
```

## AI Coding Instructions

- Use `Bind` when parameter decorator syntax cannot be used directly, especially in JavaScript-based controllers.
- Pass decorator factories, such as `Param('id')`, `Body()`, or custom parameter decorators, rather than raw values.
- Place `@Bind(...)` on the method that should receive the decorator metadata.
- Keep the bound decorators aligned with the method’s expected arguments and request-handling behavior.

## Used by

1 reference from 1 file. Each is a place in this repository where the symbol is actually used — go read one rather than trusting an example.

### Imported by (1)

- `CatsController` — `sample/09-babel-example/src/cats/cats.controller.js`:12