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

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[Home](./index.md) &gt; [@loopback/repository](./repository.md) &gt; [JsonSchemaWithExtensions](./repository.jsonschemawithextensions.md)

## JsonSchemaWithExtensions interface

This module defines the key classes representing building blocks for Domain Driven Design. See https://en.wikipedia.org/wiki/Domain-driven\_design\#Building\_blocks

<b>Signature:</b>

```typescript
export interface JsonSchemaWithExtensions extends JsonSchema 
```
<b>Extends:</b> JsonSchema