--- title: "Mayukh Bhowmick (@mayukh551) | Hashnode" description: "Backend Developer | Docker & K8s | Learning Microservices. Read the latest articles by Mayukh Bhowmick on Hashnode." url: "https://hashnode.com/@mayukh551" --- @mayukh551 # Mayukh Bhowmick @mayukh551 · West Bengal, India · Joined April 2023 Backend Developer | Docker & K8s | Learning Microservices ### [Sessions and Transactions in MongoDB](https://mayukh551.hashnode.dev/sessions-and-transactions-in-mongodb?utm_source=hashnode&utm_medium=feed) Pre-requisites:Must know how to use mongoose to create models, run queries, writes, updates and creating a connection. ACID ACID transactions in MongoDB ensure data integrity and consistency for operations involving multiple documents. Here's a brief... 9 min read · [mayukh551.hashnode.dev](https://mayukh551.hashnode.dev/sessions-and-transactions-in-mongodb?utm_source=hashnode&utm_medium=feed) [Sep 23, 2024](https://hashnode.com/posts/sessions-and-transactions-in-mongodb/66f18bf54df05b1b2c40de2d) ### [Permission Classes in Django-Rest-Framework](https://mayukh551.hashnode.dev/permission-classes-in-django-rest-framework?utm_source=hashnode&utm_medium=feed) Understanding the use of permission classes can help you build secure and robust application. 7 min read · [mayukh551.hashnode.dev](https://mayukh551.hashnode.dev/permission-classes-in-django-rest-framework?utm_source=hashnode&utm_medium=feed) [Mar 22, 2024](https://hashnode.com/posts/permission-classes-in-django-rest-framework/65fdc3309172c74427e56c80) ### [Connection Pooling in Databases?](https://mayukh551.hashnode.dev/connection-pooling-in-databases?utm_source=hashnode&utm_medium=feed) Optimize your Node.js app's performance with Mongoose connection pooling. Learn how to efficiently manage database connections and boost your application's 4 min read · [mayukh551.hashnode.dev](https://mayukh551.hashnode.dev/connection-pooling-in-databases?utm_source=hashnode&utm_medium=feed) [Nov 13, 2023](https://hashnode.com/posts/connection-pooling-in-databases/6551caaa7a755732e6a066dd) ### [🚀 Setup: PostgreSQL & Docker](https://mayukh551.hashnode.dev/setup-postgresql-docker?utm_source=hashnode&utm_medium=feed) Deploy a PostgreSQL database in minutes with Docker 6 min read · [mayukh551.hashnode.dev](https://mayukh551.hashnode.dev/setup-postgresql-docker?utm_source=hashnode&utm_medium=feed) [2](https://hashnode.com/posts/setup-postgresql-docker/64c5557a32d40e3d4de81535) [Jul 29, 2023](https://hashnode.com/posts/setup-postgresql-docker/64c5557a32d40e3d4de81535) ### [Build Custom Error Classes for error-handling in JS and TS](https://mayukh551.hashnode.dev/build-custom-error-classes-for-error-handling-in-js-and-ts?utm_source=hashnode&utm_medium=feed) Custom error classes allow you to define specific error types by providing meaningful names and messages for each error type. 9 min read · [mayukh551.hashnode.dev](https://mayukh551.hashnode.dev/build-custom-error-classes-for-error-handling-in-js-and-ts?utm_source=hashnode&utm_medium=feed) [Jul 9, 2023](https://hashnode.com/posts/build-custom-error-classes-for-error-handling-in-js-and-ts/64aaf446d0d5aed12992c29f)