How can I perform batch operations with transactions in Sequelize?

How can I perform batch operations with transactions in Sequelize?

You can use Sequelize's transaction feature to ensure that a series of operations either all succeed or all fail. Here's a basic example.

Can you show me a code snippet for that?

Sure! Here's a simple example:

const { sequelize, User } = require('./models');

async function performBatchOperations() {
    const t = await sequelize.transaction();
    try {
        await User.create({ name: 'Alice' }, { transaction: t });
        await User.create({ name: 'Bob' }, { transaction: t });
        await t.commit();
    } catch (error) {
        await t.rollback();
        console.error('Transaction failed:', error);
    }
}

What happens if one of the operations fails?

If one of the operations fails, the transaction will be rolled back, meaning none of the changes will be saved to the database.