Spring Boot Tutorial for Beginners | Full Course 2025
📚 Main topics
- Course setupThe course uses IntelliJ, Java 21, Maven, and Spring Initializr to create a Spring Boot project with the Spring Web dependency. 3:09
- First REST APIA REST controller and GET mapping expose a simple endpoint, which runs on port 8080 and returns a greeting. 8:27
- API and data modelThe course defines a software engineer model and a controller that returns sample engineers as JSON, then introduces plans for building out CRUD endpoints. 14:40
- Docker and PostgreSQLDocker concepts are introduced, and Docker Compose is used to run a PostgreSQL container with a configured port, credentials, and persistent storage. 22:32
- Database connection and JPASpring Boot is configured to connect to PostgreSQL; JPA entity and ID annotations let Hibernate create the software engineer table. 33:24
- Repository and service layersA JPA repository and service retrieve engineers from the database, and the controller returns that data through the API. 49:15
- Creating and retrieving recordsThe course adds POST and GET-by-ID endpoints, using request bodies, path variables, and repository methods to save and fetch engineers. 59:06
✨ Key takeaways
- Spring Boot conventionsAnnotations such as SpringBootApplication, RestController, GetMapping, and PostMapping provide a straightforward way to configure the application and expose endpoints. 9:30
- JPA reduces boilerplateEntities and JpaRepository allow the application to map Java classes to database tables and perform common operations without writing SQL for each one. 44:46
- Docker improves portabilityContainers package applications and their dependencies, while Docker Compose helps define and run services such as the PostgreSQL database. 23:04
- Use DTOs and validation in real APIsThe tutorial passes entities directly for simplicity, but notes that production APIs should use data transfer objects and validate incoming values. 53:58
🧠 Lessons learned
- Database configuration mattersThe application needs the correct JDBC URL, database name, username, and password; the database must also exist before the connection can succeed. 35:05
- Generated IDs simplify insertsUsing an identity-generated ID lets the database assign primary keys when new engineers are saved. 57:25
- Handle missing records appropriatelyThe GET-by-ID example throws an exception when no engineer is found, but the tutorial notes that a real API should return a suitable status such as 404. 37:36
🏁 Conclusion/next steps
- Continue building the APIThe course demonstrates listing, adding, and retrieving engineers, and points learners toward exercises to implement the remaining update and delete operations. 1:09:53
- Explore the broader learning pathThe instructor describes further courses covering Spring Boot, deployment to AWS, Docker, and Kubernetes. 1:10:24
Transcript excerpt
0:00 What's going on guys Asalam allayikum welcome to this course on Spring Boot. In this course I'm going to teach you the most popular framework for the Java ecosystem Spring Boot which allows you to build Restful APIs and web applications and all that good stuff in this course I'm going to teach you Spring Boot and we're going to learn how to create an API connect to a real database using Docker um and a database will be Postgres as well as using JPA so this is an overview of
0:31 how to put all of these components together in terms of building a real API all right so if you're new to this channel go ahead and subscribe smash the like button so we can keep on recording content like this and without further ado let's get started before I start just want to say that we just released our brand new platform Amigoscode 2.0 know and uh everything has been built from scratch new dashboard new courses new tools um new content blogs and pretty much everything
1:03 that you need in terms of helping you succeed as an engineer so this is something that a lot of you have been asking and I felt in terms of taking Amigos to the next level we had to build this brand new platform and in fact if you want to gain a certificate this exact same course with exercises is available in our platform so go and enroll all right so for now let's go ahead and learn about Spring Boot for this course we're going to use IntelliJ which is by far the
🔒 The full, searchable transcript is available with Pro.
Questions & Answers
Common questions about this video
¿Qué permite hacer Spring Boot y qué tecnologías se usan en el curso?
¿Qué dependencias se agregan para crear la API y conectarla a PostgreSQL?
¿Cómo se crea un endpoint GET básico en Spring Boot?
¿Qué conceptos básicos de Docker explica el curso?
¿Cómo se configura la conexión de Spring Boot con PostgreSQL en Docker?
¿Cómo se convierte una clase Java en una entidad persistida por JPA?
¿Cómo se guardan nuevos ingenieros de software mediante una solicitud POST?
¿Cómo se obtiene un ingeniero de software por su ID?
Related summaries
Stanford CME295 Transformers & LLMs | Autumn 2026 | Lecture 2 - Large Language Models
TanStack Router Course – Loaders, Auth & Type-Safe Routes
n8n Full Course – Architect Scalable AI Automations from Scratch
MATEMATICA: fare più ESERCIZI non basta (ecco perché)
Build & Train a GLM-5.3-Flash Model From Scratch with Python
