DEV Community: Shubham Bhati

Spring Boot REST API Best Practices in 2026: A Production Guide

Shubham Bhati — Sat, 16 May 2026 20:36:08 +0000

Published 2026-05-17 by Shubham Bhati — Backend Engineer (Java 17, Spring Boot, Microservices).

We've all been there - stuck with a slow and unresponsive Spring Boot REST API in production, wondering where it all went wrong. Recently, we encountered a similar issue with one of our APIs, where the average response time was over 500ms. After digging into the code, we realized that we weren't following some of the essential Spring Boot REST API best practices. In this article, we'll share our experience and provide a comprehensive guide on how to build production-grade REST APIs using Spring Boot.

Introduction to REST API Design
Choosing the Right HTTP Methods
Error Handling and Logging
Database Schema Design
Common Mistakes
Security Considerations
FAQ
Conclusion

Introduction to REST API Design

When designing a REST API, it's essential to keep in mind the principles of RESTful architecture. This includes using HTTP methods (GET, POST, PUT, DELETE) to interact with resources, using meaningful resource names, and handling errors properly. We've found that using a tool like Postman can be incredibly helpful in testing and debugging our APIs. For example, let's consider a simple API that returns a list of users:

@RestController
@RequestMapping("/users")
public class UserController {
    @GetMapping
    public List<User> getUsers() {
        return userRepository.findAll();
    }
}

In this example, we're using the @GetMapping annotation to map the /users endpoint to the getUsers() method, which returns a list of users.

Choosing the Right HTTP Methods

Choosing the right HTTP method for your API endpoint is crucial. For instance, if you're creating a new resource, you should use the POST method. If you're updating an existing resource, you should use the PUT method. We've seen cases where using the wrong HTTP method can lead to unexpected behavior and errors. For example, let's consider an API that creates a new user:

@PostMapping
public User createUser(@RequestBody User user) {
    return userRepository.save(user);
}

In this example, we're using the @PostMapping annotation to map the /users endpoint to the createUser() method, which creates a new user.

Error Handling and Logging

Error handling and logging are critical components of a production-grade REST API. We've found that using a combination of try-catch blocks and logging frameworks like Logback can be incredibly effective in handling errors and logging important information. For example, let's consider an API that handles errors:

@GetMapping
public List<User> getUsers() {
    try {
        return userRepository.findAll();
    } catch (Exception e) {
        logger.error("Error fetching users", e);
        throw new RuntimeException(e);
    }
}

In this example, we're using a try-catch block to catch any exceptions that occur when fetching users, and logging the error using Logback.

Database Schema Design

Database schema design is another critical aspect of building a production-grade REST API. We've found that using a tool like Hibernate can be incredibly helpful in designing and managing our database schema. For example, let's consider a simple database schema:

CREATE TABLE users (
    id INT PRIMARY KEY,
    name VARCHAR(255),
    email VARCHAR(255)
);

In this example, we're creating a simple table called users with three columns: id, name, and email.

Common Mistakes

Here are some common mistakes to avoid when building a Spring Boot REST API:

Not using meaningful resource names
Not handling errors properly
Not using the right HTTP methods
Not logging important information
Not securing your API properly

Security Considerations

Security is a critical aspect of building a production-grade REST API. We've found that using a combination of authentication and authorization mechanisms, such as OAuth and JWT, can be incredibly effective in securing our APIs. For example, let's consider an API that uses JWT to authenticate users:

@GetMapping
public List<User> getUsers(@RequestHeader("Authorization") String token) {
    // Verify the token and authenticate the user
    return userRepository.findAll();
}

In this example, we're using the @RequestHeader annotation to get the Authorization header, which contains the JWT token.

FAQ

What is the best way to handle errors in a Spring Boot REST API?

We've found that using a combination of try-catch blocks and logging frameworks like Logback can be incredibly effective in handling errors and logging important information. For more information, check out the Spring documentation.

How do I secure my Spring Boot REST API?

We've found that using a combination of authentication and authorization mechanisms, such as OAuth and JWT, can be incredibly effective in securing our APIs. For more information, check out the OAuth documentation.

What is the best way to design a database schema for a Spring Boot REST API?

We've found that using a tool like Hibernate can be incredibly helpful in designing and managing our database schema. For more information, check out the Hibernate documentation.

How do I choose the right HTTP methods for my Spring Boot REST API?

We've found that choosing the right HTTP method depends on the specific use case and the resources being interacted with. For more information, check out the RFC documentation.

Conclusion

In conclusion, building a production-grade Spring Boot REST API requires careful consideration of several factors, including REST API design, error handling and logging, database schema design, security considerations, and more. By following the best practices outlined in this article, we can build fast, scalable, and secure APIs that meet the needs of our users. For more information, check out the Spring Boot documentation.

From B.Com to Backend Engineer: My Masai School Journey

Shubham Bhati — Sat, 16 May 2026 17:58:53 +0000

From B.Com to Backend Engineer: My Masai School Journey

By Shubham Bhati — Backend Engineer at AlignBits LLC

The unlikely path

I have a Bachelor of Commerce degree from Devi Ahilya Vishwavidyalaya in Indore. Three years later, I'm a Software Engineer at an iPaaS company, shipping production Java microservices that integrate enterprise systems.

In between those two facts is one institution that changed my trajectory: Masai School.

This is the honest version of how I went from balance sheets to backend systems — what worked, what was hard, and what I'd do differently.

Why a B.Com grad picks up Java

I didn't grow up writing code. My undergrad was accounting, taxation, business law. By the final year of B.Com (2022), I had a clear realization: the work I was being prepared for didn't excite me. The work that did — building software — required skills my degree never gave me.

I had two options:

Spend ₹4–8 lakh on a Master's degree
Find a focused, intensive program that taught backend engineering for software jobs

I picked option 2 and applied to Masai School for their Software Engineering — Java Backend Specialization (then a 30+ week program in Bengaluru).

What Masai actually teaches

Forget the marketing. What I actually learned, in order:

Phase 1 — Foundations (HTML/CSS/JS, DSA)
Surprisingly tough. As a non-engineering grad, the first month was just adapting to "thinking like a programmer" — abstraction, recursion, big-O.

Phase 2 — Java + OOP
Where the Java backend specialization really started. Generic types, collections framework, exception handling, multithreading basics.

Phase 3 — Spring Boot + databases
The career-defining phase. REST APIs, Spring Data JPA, Hibernate, MySQL. By week 18, I was building functional CRUD APIs.

Phase 4 — Production-grade
Spring Security, JWT, OAuth 2.0, microservices patterns, message queues (RabbitMQ basics).

Phase 5 — Capstone projects
Real, deployable projects. Mine included Chatterbox (Spring Boot WebSockets) and a Shopzilla e-commerce backend.

What worked

1. Showing up every day
Masai is intense — 9–10 hours of focused work, six days a week. The students who showed up consistently are the ones who got hired. Talent matters less than this.

2. Building things outside class
I built side projects on weekends. SnapResize, TIC_TAC_TOE with JavaFX, and WorkFolio — these became my real portfolio.

3. Studying production code
Reading open-source Spring projects taught me more than tutorials ever did.

4. Practicing Java interview problems daily
HackerRank, LeetCode (easy/medium). I have an Intermediate badge for Java on HackerRank — earned by daily practice.

What didn't work (or what I'd change)

1. Spreading too thin
I tried to learn React + Java backend simultaneously in the first months. Mistake. Going deep on one stack beats being mediocre at two.

2. Skipping system design early
Masai covers basics, but interview-grade system design (LB, caching, partitioning, CAP, consistent hashing) — I learned that mostly on the job after joining IHX. Should have started earlier.

3. Not building public presence
I waited until job-search stage to make a GitHub portfolio. Should have been pushing code from week 1. Recruiters search GitHub more than they admit.

What happened after Masai

IHX Private Limited (Jun 2023 – Aug 2024) — Associate Software Engineer on healthcare backend systems. FHIR-standard integrations. This is where I learned production engineering: incidents, on-call, monitoring, SLOs.

AlignBits LLC (Sep 2024 – present) — Software Engineer on an iPaaS platform. Microservices at scale, message queues, AWS, cross-system integrations. Got promoted from Jr. in my first year.

In two years from graduating Masai I've:

Resolved 15+ production incidents
Managed 10+ client integration pipelines
Earned 25+ certifications (AI Engineer, Java, Prompt Engineering)
Stayed at backend engineering — never had to pivot

Is Masai worth it?

Honest answer: yes, conditionally.

It's worth it if:

You're committed to backend engineering as a career
You can dedicate 9+ hours/day for 30+ weeks
You have no engineering background and need structured fundamentals
You're OK with the pay-after-placement model (you don't pay until you're earning)

It's NOT worth it if:

You're looking for a credential to put on a resume without doing the work
You already know Java and Spring well — you'll be bored in the first half
You can't commit full-time

What I'd tell a B.Com student today

Pick one stack, go deep. Don't be a full-stack jack-of-all-trades. Java + Spring Boot is a solid bet for India in 2026.
Push code to GitHub from day one. Even bad code. Recruiters notice consistency.
Get a working website. Mine is at shubh2-0.github.io. It pulls more recruiter messages than my LinkedIn.
Solve 1 LeetCode problem a day. Not 10. One, every day, for a year.
Find a community. I'd struggled alone for months before joining Masai. Don't.

What's next

I'm currently exploring backend engineering roles — remote, hybrid, or relocation — with companies building products that scale. If you're hiring or know someone who is, my LinkedIn is the fastest way to reach me.

If you're a B.Com student staring at a coding bootcamp wondering if it's worth it: it is, if you do the work.

Shubham Bhati is a Backend Engineer at AlignBits LLC, working on iPaaS platform integrations with Java, Spring Boot, and AWS. Based in Gurgaon, India. Portfolio · GitHub · LinkedIn

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DEV Community: Shubham Bhati

Spring Boot REST API Best Practices in 2026: A Production Guide

Introduction to REST API Design

Choosing the Right HTTP Methods

Error Handling and Logging

Database Schema Design

Common Mistakes

Security Considerations

FAQ

What is the best way to handle errors in a Spring Boot REST API?

How do I secure my Spring Boot REST API?

What is the best way to design a database schema for a Spring Boot REST API?

How do I choose the right HTTP methods for my Spring Boot REST API?

Conclusion

Further Reading

From B.Com to Backend Engineer: My Masai School Journey

From B.Com to Backend Engineer: My Masai School Journey

The unlikely path

Why a B.Com grad picks up Java

What Masai actually teaches

What worked

What didn't work (or what I'd change)

What happened after Masai

Is Masai worth it?

What I'd tell a B.Com student today

What's next