---
lang: en
title: 'API docs: metadata.methodmultidecoratorfactory'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
sidebar: lb4_sidebar
editurl: https://github.com/loopbackio/loopback-next/tree/master/packages/metadata
permalink: /doc/en/lb4/apidocs.metadata.methodmultidecoratorfactory.html
---

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[Home](./index.md) &gt; [@loopback/metadata](./metadata.md) &gt; [MethodMultiDecoratorFactory](./metadata.methodmultidecoratorfactory.md)

## MethodMultiDecoratorFactory class

Factory for an append-array of method-level decorators The `@response` metadata for a method is an array. Each item in the array should be a single value, containing a response code and a single spec or Model. This should allow:

**Signature:**

```typescript
export declare class MethodMultiDecoratorFactory<T> extends MethodDecoratorFactory<T[]> 
```
**Extends:** [MethodDecoratorFactory](./metadata.methoddecoratorfactory.md)<!-- -->&lt;T\[\]&gt;

## Example


```ts
 @response(200, MyFirstModel)
 @response(403, [NotAuthorizedReasonOne, NotAuthorizedReasonTwo])
 @response(404, NotFoundOne)
 @response(404, NotFoundTwo)
 @response(409, {schema: {}})
 public async myMethod() {}
```
In the case that a ResponseObject is passed, it becomes the default for description/content, and if possible, further Models are incorporated as a `oneOf: []` array.

In the case that a ReferenceObject is passed, it and it alone is used, since references can be external and we cannot `oneOf` their content.

The factory creates and updates an array of items T\[\], and the getter provides the values as that array.

## Methods

<table><thead><tr><th>

Method


</th><th>

Modifiers


</th><th>

Description


</th></tr></thead>
<tbody><tr><td markdown="1">

[mergeWithInherited(inheritedMetadata, target, methodName)](./metadata.methodmultidecoratorfactory.mergewithinherited.md)


</td><td markdown="1">

`protected`


</td><td markdown="1">


</td></tr>
<tr><td markdown="1">

[mergeWithOwn(ownMetadata, target, methodName, methodDescriptor)](./metadata.methodmultidecoratorfactory.mergewithown.md)


</td><td markdown="1">

`protected`


</td><td markdown="1">


</td></tr>
</tbody></table>