SEQUELIZE API Reference

SEQUELIZE is a promise-based NODE.JS ORM for POSTGRESQL, MYSQL, MARIADB, SQLITE, and MICROSOFT-SQL-SERVER. It provides a high-level abstraction for database operations, allowing developers to interact with RELATIONAL-DATABASES using JAVASCRIPT objects. The library supports TYPESCRIPT out of the box, ensuring type safety and improved developer experience.

Key Features

One of the primary strengths of SEQUELIZE is its robust MIGRATIONS system, which allows for version control of the database schema. Additionally, it offers comprehensive support for ASSOCIATIONS, including One-to-One, One-to-Many, and Many-to-Many relationships. Developers can utilize HOOKS to execute logic before or after database lifecycle events, such as validation or logging.

For detailed implementation guides, refer to the Sequelize v6 Documentation or the Sequelize GitHub Repository.

Querying and Transactions

Queries in SEQUELIZE are performed using methods like findAll, create, and update. To ensure data integrity, SEQUELIZE implements TRANSACTIONS, allowing multiple operations to be treated as a single atomic unit. This is critical for maintaining consistency in complex BACKEND applications.

• EXPRESS.JS
• KNEX.JS
• TYPEORM
• PRISMA