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RizTech Academy

Java + Spring Web Development

Build production-grade REST APIs with Spring Boot — the stack most Indian enterprises actually hire for.

Spring Boot is what most enterprise Java teams in India build on. It is also the stack most likely to get a fresher hired.

It has a reputation for magic — annotations that do things you cannot see. This course explains what is happening underneath, so when something breaks you can reason about it instead of searching for the annotation that makes the error go away.

You build one REST API through the whole course: entities, repositories, services, controllers, security, tests, then deployment.

Who this is for

  • Developers with Java fundamentals who want backend roles
  • Students targeting product or service companies hiring on Java
  • Interns on the Full-Stack track

What you need first

  • Java Complete Foundation, or solid Java experience
  • Basic SQL
  • Familiarity with HTTP and REST concepts helps

Tools you will use

Spring Boot 3.xJava 21PostgreSQLMavenJUnit 5Docker

By the end you can

  • Explain dependency injection and what Spring is actually doing
  • Build REST APIs with proper status codes and error responses
  • Map entities and relationships with JPA and Hibernate
  • Secure an API with Spring Security and JWT
  • Write unit and integration tests, including with Testcontainers
  • Configure an application per environment and deploy it
Syllabus

6 modules, 30 lessons

Work through these in order. Each lesson is short enough to finish in one sitting and ends with something to build, not a quiz.

  1. 1

    Spring Fundamentals

    Dependency injection and the container, explained without hand-waving.

    1. Why Spring exists, and the problem it solvesComing soon
    2. Dependency injection and inversion of controlComing soon
    3. Beans, the application context and scopesComing soon
    4. Spring Boot, starters and auto-configurationComing soon
    5. Your first Spring Boot applicationComing soon
  2. 2

    Building REST APIs

    Controllers, request handling and responses that clients can rely on.

    1. Controllers and request mappingComing soon
    2. Request bodies, path variables and query parametersComing soon
    3. DTOs, and why you should not expose entitiesComing soon
    4. Validation with Bean ValidationComing soon
    5. Global error handling and consistent error responsesComing soon
    6. REST API design: status codes, versioning, paginationComing soon
  3. 3

    Data Access with JPA

    Persistence, and understanding what Hibernate does on your behalf.

    1. JPA, Hibernate and entitiesComing soon
    2. Spring Data repositoriesComing soon
    3. Entity relationships and fetch typesComing soon
    4. The N+1 problem and how to see itComing soon
    5. Transactions and @TransactionalComing soon
    6. Schema migrations with FlywayComing soon
  4. 4

    Security

    Authentication and authorisation that will survive a review.

    1. Spring Security: the filter chainComing soon
    2. Storing passwords correctlyComing soon
    3. JWT authentication end to endComing soon
    4. Roles, authorities and method securityComing soon
    5. Security mistakes that reach productionComing soon
  5. 5

    Testing

    Unit, slice and integration tests, and knowing which to write.

    1. Unit testing servicesComing soon
    2. Testing controllers with MockMvcComing soon
    3. Integration tests with TestcontainersComing soon
    4. What to test and what to skipComing soon
  6. 6

    Configuration and Deployment

    Profiles, secrets, observability and shipping it.

    1. Configuration, profiles and environment variablesComing soon
    2. Actuator, health checks and useful loggingComing soon
    3. Containerising a Spring Boot applicationComing soon
    4. Deploying and the production checklistComing soon
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Learning this with a mentor is faster

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