Elasticsearch 9 & Spring Boot: Search Engine Masterclass (Udemy.com)

Overall really informative course. I will highly recommend this course if any individual/team don't have awareness about Elasticsearch and its usability with Spring Boot. It will be useful for experienced , medium experienced and completely fresher folks.

there can't be a simpler and straightforward explanation. you are doing great work sir. your lectures feel like hidden gem.

[2025/12/31]: Highly recommend to learn!! All the things that I like about this course are: - Very detailed course. - There are many theories in the lecture, but it wasn't boring. And they are the fundamental and foundation for later easier to code. Ideally, this course could include an extension on using Debezium and Kafka to update and sync data in the database with Elasticsearch data. If there's a follow-up course on this topic, I would definitely pay to take it. English isn't a problem; I can understand it, and it has subtitles, so it's fine.

I really love this course. It felt like a meaningful and enjoyable journey, and I learned a lot step by step. The explanations were clear and practical, which made complex topics easier to understand. As a small suggestion, I would really appreciate it if you could add a reactive version of the Native Query Builder. Also, including a few lectures on what should be considered when building a production grade search application would make this course even more valuable. Thank you for such a well structured and insightful course.

The materials are very well-designed and organized. I like the way the instructor present the materials. It's very easy to follow. Thank you,

Thank you so much – excellent course overall! The explanations and coding examples are clear and easy to follow. The only drawback is the lack of lecture notes. Having notes would make it much easier to revise and review key points, and I believe it would really make your courses stand out even more. Personally, I rely on notes for revision, so I truly hope this can be added in the future.

I liked the course initially; everything is understandable easily. However, when the implementation starts with Spring, the complexity of understanding increases. One thing I disliked or not able to understood is direct use of specific classes and interfaces of elastic search. this confused me and decreased my motivation to learn its implementation. The internal working of elastic search is explained very well, credit for that. But for implementation part, it is very hard to know about elastic search classes, methods, lambdas' etc. just by seeing them for the first time. Ya, I agree that we have to checkout some documentation for those classes and methods but it could have been better if little bit information has been provided in the lectures itself. I would deduct 1.5 stars from the rating for that. 3.5 stars for Elastic Search explanation.

This course is covering concepts in detail and also having good hands on programming which gives better understanding of Elastic search.

This course is an absolute must for anyone serious about building robust and efficient search engine architectures. From the fundamentals of full-text search and fuzzy matching to the complexities of powerful aggregations, it covers a vast amount of ground with clarity and precision. The 'from scratch' approach is particularly valuable, as it equips you with a deep understanding of the underlying principles, allowing for truly customized and optimized solutions. The course materials are well-structured, the explanations are easy to follow, and the practical exercises solidify the concepts effectively. If you want to master search engine technology, look no further – this course is a 5-star gem!

One of the best resource that you can find on Elasticsearch. Covers the 'native' APIs and on top also covers Spring based communication.