Have you had experience with transaction management in databases?

Yes, I have experience with managing transactions in databases. In Node.js, libraries that support transactions, such as Sequelize, TypeORM, or database drivers directly, are often used.

Transactions ensure the atomicity of operations: either all changes are applied, or none are, which is important for maintaining data integrity.

Example using Sequelize:

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

async function performTransaction() {
  const t = await sequelize.transaction();
  try {
    await User.create({ name: 'John' }, { transaction: t });
    await Order.create({ userId: 1, total: 100 }, { transaction: t });
    await t.commit();
  } catch (error) {
    await t.rollback();
    throw error;
  }
}

Here, all operations within the transaction will either execute together or rollback in case of an error.