What is eager loading in Node.js ORM?

What is eager loading in Node.js ORM?

Eager loading is a technique used in Object-Relational Mapping (ORM) to load related data at the same time as the main data, reducing the number of database queries.

Can you give me an example of how to implement eager loading in Sequelize?

Sure! In Sequelize, you can use the include option in your query. For example: User.findAll({ include: [{ model: Post }] }); This will load all users along with their associated posts.

What are the benefits of using eager loading?

The main benefits include improved performance by reducing the number of queries and ensuring that related data is available when needed.

Are there any downsides to using eager loading?

Yes, eager loading can lead to loading too much data at once, which may impact performance if not managed properly. It's important to balance between eager and lazy loading.