---
meta:
 - name: keywords
   description: api typescript node.js documentation registerJsonTypeMapper function
---
# registerJsonTypeMapper - @tsed/json-mapper

## Usage

```typescript
import { registerJsonTypeMapper } from "@tsed/json-mapper";
```

> See [/packages/specs/json-mapper/src/domain/JsonMapperTypesContainer.ts](https://github.com/tsedio/tsed/blob/v8.26.2/packages/specs/json-mapper/src/domain/JsonMapperTypesContainer.ts#L0-L0).

## Overview

```ts
function registerJsonTypeMapper(type: Type<any> | Symbol | string, token: Type<JsonMapperMethods>): void;
```

<!-- Description -->

## Description

Register a mapper class for a specific primitive/complex type so it can be reused by the serializers.