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The Backend Chronicles

Mastering the art of server-side engineering. Deep dives into system design, databases, and scalable architecture.

Latest Articles

Don’t Charge Your Users Twice: Understanding Idempotency

Idempotency is an interesting concept. It is based on the fact that acting many times provides the same result as doing it just once.

Amanda Ene Adoyi

5/8/2026

Java

Mastering @RequestMapping, @RestController, and @Controller in Spring Boot

These annotations define how your application handles HTTP requests and sends responses back to the client. Understanding them clearly is very important for both real-world development and interviews.

Ayush Shrivastava

5/6/2026

Java

Why Backend Teams Use Standard API Responses in Spring Boot

This guide breaks down how standard API responses work in Spring Boot and why they matter in real projects.

Toluwanimi Fawole

5/4/2026

Java

How to Become an AI Engineer from a Java Developer Using Spring AI

The world is quickly moving towards Artificial Intelligence, and many Java developers are now thinking about how they can transition into AI engineering.

Ayush Shrivastava

5/1/2026

Java

Mastering Custom API Response in Java Spring Boot

When you start building APIs in Spring Boot, things feel simple at first. You return objects, and Spring automatically converts them into JSON.

Ayush Shrivastava

4/29/2026

Backend

Understanding HTTP Status Codes and Methods in REST APIs

Learn HTTP status codes in depth along with HTTP methods used in REST APIs, with real-world examples and best practices for backend development.

Ayush Shrivastava

4/24/2026

Java

Mastering @RequestHeader in Spring Boot

Learn how to use @RequestHeader in Spring Boot to handle HTTP headers for authentication, metadata, and client information with practical real-world examples.

Ayush Shrivastava

4/21/2026

Java

Mastering @RequestParam in Spring Boot

Learn how to use @RequestParam in Spring Boot to handle query parameters effectively with practical examples from real-world scenarios like search, filtering, and pagination.

Ayush Shrivastava

4/16/2026

@PathVariable in Spring Boot: How to Use It, With Examples

Java

8 min read

@PathVariable in Spring Boot: How to Use It, With Examples

How to use @PathVariable in Spring Boot, with runnable examples covering multiple variables, optional values, regex patterns, type conversion errors, validation, and when to use @RequestParam instead.

Ayush Shrivastava

9/6/2026

Implementing Rate Limiting for AI APIs

This guide walks through how API rate limiting works and how you can implement it in real-world systems.

Toluwanimi Fawole

4/22/2026

Difference Between OpenAI API Key and Azure OpenAI API Key

In this article, we will understand the difference between OpenAI API keys and Azure OpenAI API keys.

Ayush Shrivastava

4/8/2026

How to Create an Azure OpenAI Resource and Deploy Your First Model

In this article, you will learn how to create an Azure OpenAI resource, deploy a model, and get the API key required to use the service in your application.

Ayush Shrivastava

4/6/2026

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