How can I optimize relationships in Sequelize?

How can I optimize relationships in Sequelize?

To optimize relationships in Sequelize, you can use techniques like eager loading, lazy loading, and proper indexing.

What is eager loading and when should I use it?

Eager loading is when you load associated models at the same time as the main model. Use it when you know you'll need related data.

Can you give me an example of eager loading in code?

Sure! You can use the include option in your query like this: User.findAll({ include: [Post] }); This loads users along with their posts.

What about lazy loading? How does it differ from eager loading?

Lazy loading fetches related data only when you access it. It's useful when you don't always need the associated data.