Spring Boot 4 REST APIs: Building Modern REST APIs (Udemy.com)
Develop Real-Time Spring Boot 4 RESTful Endpoints: CRUD, JWTs, OpenAPI, Swagger, Auth, H2 Embedded DB, MySQL
Created by: Chad Darby
Last updated July 2026
What you will learn
- Explore the architecture of the Spring Boot 4 REST framework and professional CRUD operations.
- Develop REST endpoints with OpenAPI and supporting Swagger Implementation
- Build reusable service-layer logic for scalable solutions
- Avoid code duplication with service/repository patterns
- Respond with appropriate status codes and error reporting
- Implement JWT authentication and authorization using Spring Security
- Protect endpoints with Authentication & Authorization
- We are RESPONSIVE INSTRUCTORS ... post your questions and we will RESPOND in 24 hours.
- Spring Boot developers with REST endpoints experience are in HIGH-DEMAND. Level up your career!
- You can DOWNLOAD all source code and PDFs. Perfect for offline LEARNING and REVIEW.
How it compares
Against the other 518 rated Udemy courses in Software Development on CourseDuck:
- Rating4.6 out of 5higher than 62% of them
- Reviews816#158 of 519 by number of reviews
- Length14.2 hourslonger than 78% of them
- Last updatedJuly 2026more recently than 84% of them
Course Description
UPDATED FOR SPRING BOOT 4 AND SPRING 7
Spring Boot 4 is the most popular framework for building enterprise Java applications. Spring Boot 4 includes REST support to develop scalable backend API development. By developing RESTful endpoints, you can create applications with better code design, securely authenticated scalable solutions, that are all easier to maintain. This course shows you how to take full advantage of Spring Boot's REST support.
You will also use modern development tools such as IntelliJ (free version) and Maven. All of the projects are based on Maven, so you are free to use any IDE tool that you want.
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In this course, you will get:
- All source code is available for download
- Responsive Instructors: All questions answered within 24 hours
- PDFs of all lectures are available for download
- Professional video and audio recordings (check the free previews)
- High quality closed-captions / subtitles available for English and 14 other languages (new!)
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~ 1,000,000 (1 MILLION) happy students between the instructors of this course!
Students love this course! 5-star reviews
Chad Darby and Eric Roby are great at delivering the materials and giving good real-world examples of concepts. they make the course a very enjoyable class, This course is very thorough and detailed. Thank you - Ninos
Great course, the material is explained in such a clear way. I enjoy it a lot. Highly recommendable. - Ardak Sydyknazar
Chad Darby's courses are the best on Udemy. Thanks him I've got my first work and got promotion on the second one. Good job, my friend! (c) :) - Andrii Hryhoriev
this is my 4th Course with Mr. Darby, and his courses are so special. Organized, clear concepts, amazing material. and the most important his Knowledge of the Topic and he really deliver the information's for us. just amazing. - Ra'ed Abu Sa'da
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In this course, you will learn how to:
REST API Fundamentals
Understand REST architecture and principles
Set up Spring Boot REST controllers
Build endpoints for CRUD operations
Use @RestController, @RequestMapping, @PathVariable, and @RequestBody
Differentiate between GET, POST, PUT, and DELETE methods
Handle path variables and query parameters effectively
Leverage @ResponseStatus to control HTTP responses
Connect to Databases with Spring Data JPA
Integrate with MySQL (and H2 for local dev)
Use Spring Data JPA repositories
Map entities with JPA annotations
Perform custom queries using JPQL and native SQL
Use projections and DTOs to control data exposure
CRUD Operations
Create REST endpoints for full CRUD functionality
Return JSON data using Jackson
Use @PostMapping, @PutMapping, @DeleteMapping, and @GetMapping effectively
Build reusable service-layer logic
Avoid code duplication with generic service/repository patterns
Handle entity not found scenarios gracefully
Respond with appropriate status codes for create/update/delete operations
REST Best Practices
Use proper HTTP status codes
Path & Query Data Validation
Object Data Validation
Apply request validation with @Valid and custom validators
Structure consistent response models
Implement global exception handling with @ControllerAdvice
Leverage @ResponseEntity for flexible responses
Avoid exposing internal domain objects directly in responses
Secure Your REST APIs
Add basic authentication with Spring Security
Secure endpoints by role or path
Implement JWT authentication (coming soon in course updates)
Customize login/logout endpoints
Configure stateless sessions using JWT
Restrict CORS to specific domains
BCrypt Hashing for database passwords
Compared to other Spring Boot REST courses
This course is up to date and covers recent versions of Spring Boot 4. We make use of modern development tools such as IntelliJ (free version) and Maven.
We are very responsive instructors and we are available to answer your questions and help you work through any problems.
Finally, all source code is provided with the course along with setup instructions.
Student Reviews Prove This Course's Worth
Those who have reviewed the course have pointed out that the instruction is clear and easy to follow, as well as thorough and highly informative.
Many students had also taken other Spring Boot REST courses in the past, only to find that this Spring Boot REST course was their favorite. They enjoyed the structure of the content and the high quality audio/video.
Sample of Student Reviews - 5 stars!
Chad Darby and Eric Roby are great at delivering the materials and giving good real-world examples of concepts. they make the course a very enjoyable class, This course is very thorough and detailed. Thank you - Ninos
Great course, the material is explained in such a clear way. I enjoy it a lot. Highly recommendable. - Ardak Sydyknazar
Chad Darby's courses are the best on Udemy. Thanks him I've got my first work and got promotion on the second one. Good job, my friend! (c) :) - Andrii Hryhoriev
this is my 4th Course with Mr. Darby, and his courses are so special. Organized, clear concepts, amazing material. and the most important his Knowledge of the Topic and he really deliver the information's for us. just amazing. - Ra'ed Abu Sa'da
Quality Material
You will receive a quality course, with solid technical material and excellent audio and video production. I am a best-selling instructor on Udemy. Here's a list of my top courses.
Instructor Details
- 4.6 Rating
816 Reviews
Chad Darby
Chád (shod) Darby is an author, instructor and speaker in the Java development world.
Chád is a contributing author to several Java books, including Professional Java E-Commerce (Wrox Press), Beginning Java Networking (Wrox Press), and XML and Web Services Unleashed (Sams Publishing).
Chád has Java certifications from Oracle and IBM.
He holds a B.S. in Computer Science from Carnegie Mellon University.
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Reviews
By Doris - on 8/10/2026
The course clearly explains the Spring REST fundamentals with examples multiple times. For me, it was too repetitive. I would have liked a more compact presentation - that would be easier to fit into my schedule. My biggest peeve: not a single test written in the whole course and no explanation on testing Spring REST apps. Not sure how I would develop a real-life app for production without testing...
By Mark Kimask on 6/3/2026
The course is amazing. The pacing is perfect - it is fast enough that you keep learning something new each lesson, yet you don't fall behind and understand everything. All is perfect - the content, the pacing, the presentation. I highly recommend!
By Andrei Postelnicu on 5/16/2026
If you are looking for a complete course to learn how to build REST APIs using Spring Boot from scratch, this course is for you. However, in the last project, I had to spend some time learning Spring Security on my own and understanding the JWT concept by watching YouTube videos. Apart from that, I would add that the most important part is trying to understand what the code does and how the development process works. Thank you for this amazing course!
By Ranjan Ekanayake on 4/15/2026
A big thanks to Eric for putting this course together. It’s clear that a significant amount of time and effort went into preparing the course content. I found the sections on spring security (JWT, Authentication, Authorization) particularly insightful and learned a lot. As constructive feedback for future courses, I think it would be beneficial to dive a bit deeper into the explanation of 'why' and 'what purpose' is being used. Additionally, having code check-ins at the end of each section or project would be a huge help for troubleshooting when our local environment doesn't match the sections. Overall, a very solid course!.
By James Biswell on 3/17/2026
This is an excellent course with comprehensive explanations and learning materials throughout, incrementally increasing its knowledge outcomes and complexity in a carefully thought out and logical way that is very well presented. Thank you!
By Saúl Campos on 3/11/2026
It's a good introduction to Spring Boot, as well as teaching good practices for real world production code.
By Anonymized User on 3/9/2026
One of the best courses I've taken fast paced but easy to grasp. Not very deep into the internals of the framework but thorough on the usage to get the job done. Very well thought course and very experienced and excellent teachers.
By Shree Bellubbi on 2/16/2026
This Spring Boot course is excellent and very well structured. The mentor has clearly put great effort into designing the curriculum, covering everything from core concepts like dependency injection and auto-configuration to REST APIs, Spring Data JPA, and Spring Security. The hands-on projects, real-world examples, and focus on best practices like layered architecture and clean code made the learning practical and industry-ready. Highly recommended for anyone looking to build strong Spring Boot skills!
By Yousra melhaoui on 1/20/2026
I’m still at the beginning of the course, but I’ve already learned a lot of new information and skills. I’m really looking forward to completing it. Each slide makes me feel more confident and confirms that I made the right choice.
By Iosifidis Ilias on 12/23/2025
(Currently section 4, will update later) The course has very clear instructions, very well constructed overall, BUT. There are some outdated concepts like DAO and passwords that are a waste of time, and a folder structure that i think is outdated.
Quality Score
No CourseDuck member has rated this course yet. Taken it? Give each part a thumbs up or down.
Overall Score : 92 / 100









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