@loopback/docs/site/apidocs/repository-json-schema.modeltojsonschema.md

Documentation for LoopBack 4

---
lang: en
title: 'API docs: repository-json-schema.modeltojsonschema'
keywords: LoopBack 4.0, LoopBack 4
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permalink: /doc/en/lb4/apidocs.repository-json-schema.modeltojsonschema.html
---

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[Home](./index.md) &gt; [@loopback/repository-json-schema](./repository-json-schema.md) &gt; [modelToJsonSchema](./repository-json-schema.modeltojsonschema.md)

## modelToJsonSchema() function

Converts a TypeScript class into a JSON Schema using TypeScript's reflection API

<b>Signature:</b>

```typescript
export declare function modelToJsonSchema(ctor: Function, jsonSchemaOptions?: JsonSchemaOptions): JSONSchema;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  ctor | <code>Function</code> | Constructor of class to convert from |
|  jsonSchemaOptions | <code>JsonSchemaOptions</code> |  |

<b>Returns:</b>

`JSONSchema`