Backend Development

These backend development guides cover the parts users never see: data, queues and services. Most posts compare two options and explain when each wins.

For example, SQL vs NoSQL and Kafka vs RabbitMQ help with common choices. Also, monolith vs microservices tackles the biggest one. Language series live in the Java, Python and Node.js sections below.

149 articles

11/06/2022 11 min read

Collections Framework Part 1: List and Set

Executive Summary: The Collections Framework separates interfaces like List and Set from their implementations. I explain when to…
08/06/2022 12 min read

Python Decorators Explained with Practical Examples

A decorator wraps a function to add behavior such as timing, retries, or caching. Learn how they work,…
22/05/2022 13 min read

Practice: Model a Library System with OOP (Part 2: Behavior and Persistence)

Executive Summary: Part 2 of the library system project adds behavior and persistence to the Java domain model.…
22/05/2022 10 min read

What is PostgreSQL and Why It Matters

PostgreSQL is more than just a database; it's a powerful, open-source engine trusted by developers worldwide. Here's why…
18/05/2022 13 min read

Python Try Except and Context Managers: Error Handling Guide

Catch specific exceptions, keep the original cause with raise from, and let context managers handle cleanup. A practical…
06/05/2022 1 min read

Fetch API and store to JSON file in WordPress

At times when we have limited access to an API endpoint where the get calls are restricted to…
27/04/2022 12 min read

Python Dataclasses and Classes: When to Use Each

Dataclasses remove boilerplate for plain data, and regular classes protect state and behavior. Learn frozen, slots, field(), and…
23/04/2022 12 min read

Practice: Model a Library System with OOP (Part 1: Domain Design)

Executive Summary: Part 1 of the library system project designs a Java domain model across model and event…
23/04/2022 5 min read

High-Availability WordPress on Azure : Deployment

Learn how to deploy a high-availability WordPress website on Azure, ensuring robust performance, scalability and security for your…
06/04/2022 12 min read

Python List Comprehension and Generators Explained

List comprehensions build collections in one readable line, and generators produce items on demand. Learn the syntax, the…
20/03/2022 8 min read

Sealed Classes and Pattern Matching Foundations

Executive Summary: Sealed classes and interfaces in Java list their permitted subtypes, so the compiler knows every variant.…
16/03/2022 13 min read

Python Functions Tutorial: Arguments, Scope, and Return Values

How Python functions really work: argument styles, default values, scope and closures, and return values, with the pitfalls…
23/02/2022 13 min read

Python Data Structures: Lists, Tuples, Sets, and Dictionaries Explained

Lists, tuples, sets, and dictionaries each answer a different question about your data. Learn what each costs, when…
20/02/2022 8 min read

Records in Java: Immutable Data Carriers Done Right

Executive Summary: A Java record declares an immutable data carrier in one line, and the compiler generates the…