---
lang: en
title: 'API docs: sequelize'
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.html
---

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

## sequelize package

[@loopback/sequelize](https://github.com/loopbackio/loopback-next/tree/master/extensions/sequelize)

## Classes

|  Class | Description |
|  --- | --- |
|  [LoopbackSequelizeComponent](./sequelize.loopbacksequelizecomponent.md) |  |
|  [SequelizeCrudRepository](./sequelize.sequelizecrudrepository.md) | Sequelize implementation of CRUD repository to be used with default loopback entities and SequelizeDataSource for SQL Databases |
|  [SequelizeDataSource](./sequelize.sequelizedatasource.md) | Sequelize DataSource Class |

## Interfaces

|  Interface | Description |
|  --- | --- |
|  [LoopbackSequelizeComponentOptions](./sequelize.loopbacksequelizecomponentoptions.md) | Interface defining the component's options object |

## Namespaces

|  Namespace | Description |
|  --- | --- |
|  [LoopbackSequelizeComponentBindings](./sequelize.loopbacksequelizecomponentbindings.md) | Binding keys used by this component. |

## Variables

|  Variable | Description |
|  --- | --- |
|  [DEFAULT\_LOOPBACK\_SEQUELIZE\_OPTIONS](./sequelize.default_loopback_sequelize_options.md) | Default options for the component |

## Type Aliases

|  Type Alias | Description |
|  --- | --- |
|  [SequelizeDataSourceConfig](./sequelize.sequelizedatasourceconfig.md) |  |