What experience do you have working with different storage systems and databases?

In working with Node.js, I used various data storage systems, including relational databases such as PostgreSQL and MySQL, as well as NoSQL solutions like MongoDB and Redis. For interacting with relational databases, I employed ORM libraries such as Sequelize or TypeORM, which simplified working with queries and migrations.

For MongoDB, I used the official driver and Mongoose for data modeling. Redis was used for caching and session storage.

Example of connecting to MongoDB using Mongoose:

const mongoose = require('mongoose');

mongoose.connect('mongodb://localhost/mydb', { useNewUrlParser: true, useUnifiedTopology: true })
  .then(() => console.log('Connected to MongoDB'))
  .catch(err => console.error('Connection error', err));

I also have experience working with file systems and cloud storage solutions such as AWS S3 for storing and processing large volumes of data.