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

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[Home](./index.md) &gt; [@loopback/model-api-builder](./model-api-builder.md) &gt; [ModelApiBuilder](./model-api-builder.modelapibuilder.md) &gt; [build](./model-api-builder.modelapibuilder.build.md)

## ModelApiBuilder.build() method

**Signature:**

```typescript
build(application: ApplicationWithRepositories, modelClass: typeof Model & {
        prototype: Model;
    }, config: ModelApiConfig): Promise<void>;
```

## Parameters

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

Parameter


</th><th>

Type


</th><th>

Description


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

application


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

ApplicationWithRepositories


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


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

modelClass


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

typeof Model &amp; { prototype: Model; }


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


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

config


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

[ModelApiConfig](./model-api-builder.modelapiconfig.md)


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


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

**Returns:**

Promise&lt;void&gt;