@loopback/docs/site/apidocs/rest.resthttperrors.unsupportedmediatype.md

Documentation for LoopBack 4

---
lang: en
title: 'API docs: rest.resthttperrors.unsupportedmediatype'
keywords: LoopBack 4.0, LoopBack 4
sidebar: lb4_sidebar
editurl: https://github.com/strongloop/loopback-next/tree/master/packages/rest
permalink: /doc/en/lb4/apidocs.rest.resthttperrors.unsupportedmediatype.html
---

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[Home](./index.md) &gt; [@loopback/rest](./rest.md) &gt; [RestHttpErrors](./rest.resthttperrors.md) &gt; [unsupportedMediaType](./rest.resthttperrors.unsupportedmediatype.md)

## RestHttpErrors.unsupportedMediaType() function

<b>Signature:</b>

```typescript
function unsupportedMediaType(contentType: string, allowedTypes?: string[]): HttpErrors.HttpError & {
        code: string;
        contentType: string;
        allowedMediaTypes: string[];
    };
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  contentType | <code>string</code> |  |
|  allowedTypes | <code>string[]</code> |  |

<b>Returns:</b>

`HttpErrors.HttpError & {
        code: string;
        contentType: string;
        allowedMediaTypes: string[];
    }`