Node.js: TypeORM vs Sequelize

What are the main differences between TypeORM and Sequelize in Node.js?

TypeORM is an ORM for TypeScript and JavaScript that supports Active Record and Data Mapper patterns, while Sequelize is a promise-based ORM for Node.js that focuses on simplicity and flexibility. TypeORM is more feature-rich and supports advanced features like migrations and relations, whereas Sequelize is known for its ease of use.

Which one should I choose for a new project?

It depends on your project requirements. If you're using TypeScript and need advanced features, TypeORM might be the better choice. If you prefer a simpler setup and are working with JavaScript, Sequelize could be more suitable.

Can you give me an example of how to set up TypeORM?

Sure! To set up TypeORM, you need to install it along with a database driver. For example, for PostgreSQL, you would run npm install typeorm pg. Then, you can create a connection using createConnection() and define your entities.

What about performance? Is one faster than the other?

Performance can vary based on the specific use case and how well the ORM is utilized. Generally, TypeORM may have a slight overhead due to its features, but both ORMs are optimized for performance. It's best to benchmark them in your specific scenario.