How can I implement a rollback feature in Node.js using an ORM?

How can I implement a rollback feature in Node.js using an ORM?

To implement a rollback feature in Node.js using an ORM, you can use transactions. Most ORMs like Sequelize or TypeORM support transactions.

Can you show me a code example of how to do that?

Sure! Here's a basic example using Sequelize:

const { Sequelize, DataTypes } = require('sequelize');
const sequelize = new Sequelize('database', 'username', 'password', {
  host: 'localhost',
  dialect: 'mysql'
});

async function performTransaction() {
  const t = await sequelize.transaction();
  try {
    // Your database operations here
    await t.commit();
  } catch (error) {
    await t.rollback();
    console.error('Transaction failed:', error);
  }
}

What if I want to rollback multiple operations?

You can include all your operations within the transaction block. If any operation fails, the rollback will revert all changes made during that transaction.