Sequelize

Sequelize is a promise-based Node.js ORM for Postgres, MySQL, MariaDB, SQLite and Microsoft SQL Server. It features solid transaction support, relations, eager and lazy loading, read replication and more. Sequelize follows SEMVER.

New to Sequelize? Take a look at the Tutorials and Guides. You might also be interested in the API Reference.

v6-beta Release

v6-beta is now available. You can find detailed changelog here.

Installation

$ npm install --save sequelize # This will install v5
$ npm install --save sequelize@next # This will install v6-beta

# And one of the following:
$ npm install --save pg pg-hstore # Postgres
$ npm install --save mysql2
$ npm install --save mariadb
$ npm install --save sqlite3
$ npm install --save tedious # Microsoft SQL Server

Documentation

• v6-beta Documentation
• v5/v4/v3 Documentation
• Contributing

Responsible disclosure

If you have security issues to report, please refer to our Responsible Disclosure Policy for more details.

Resources

• Changelog
• Slack
• Stack Overflow

Tools

• CLI
• With TypeScript
• Enhanced TypeScript with decorators
• For GraphQL
• For CockroachDB
• Plugins

Translations

• English (OFFICIAL)
• 中文文档 (UNOFFICIAL)