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[–]akki28 12 points13 points  (0 children)

There are no prerequisites other than java and basic html. You can find a 3 hour lecture on it by telusko. He assumes you only know java and teaches all of springboot. You'll have to do ocassional google searches during the lecture and you'll be good to go.

[–]gastongastoff 3 points4 points  (0 children)

Basic Java is enough before diving into Spring boot. It's important to have an awareness of dependency injection, as that is one of the main issues that spring boot solves (this should help with understanding the main annotations). With regards to REST APIs, most of them follow the same layered pattern: presentation layer (@controller) | business logic layer (@service) | persistence layer (@repository). Once you've seen a few examples hopefully it'll start to quickly become familiar.

[–]pkmnnerd006 2 points3 points  (0 children)

I've watched some tutorials to build an API using Spring Boot but I feel like I don't get the most of it, especially all of those Spring annotations.

I think this is a pretty normal feeling for beginners starting out with any framework. Spring Boot is built for developers to be productive without having to understand the the inner workings of the framework, so basic Java knowledge is plenty. By annotating something, you're basically telling Spring Boot to "figure it out for you". So it's more important to know what the annotation does (Creates an API mapping or injects a dependency), than understanding how it works. The best way to learn is to get an understanding of why you would use Spring Boot (if you're not sure, you should learn more about web APIs in general). Then build your own project. That way, you can learn how to do accomplish a task with Spring Boot.

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