---
lang: en
title: 'API docs: sequelize.sequelizedatasource.init'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
sidebar: lb4_sidebar
editurl: https://github.com/loopbackio/loopback-next/tree/master/extensions/sequelize
permalink: /doc/en/lb4/apidocs.sequelize.sequelizedatasource.init.html
---

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[Home](./index.md) &gt; [@loopback/sequelize](./sequelize.md) &gt; [SequelizeDataSource](./sequelize.sequelizedatasource.md) &gt; [init](./sequelize.sequelizedatasource.init.md)

## SequelizeDataSource.init() method

**Signature:**

```typescript
init(): Promise<void>;
```
**Returns:**

Promise&lt;void&gt;