Microservices with Java & Spring Boot by CertifiKation.

Module 1: Introduction to Spring & Spring Boot

• What is Spring Framework?
• Evolution to Spring Boot
• Features and benefits of Spring Boot
• Setting up Spring Boot environment (STS/IntelliJ)
• Creating your first Spring Boot project

Module 2: Spring Boot Core Concepts

• Spring Boot Annotations (@SpringBootApplication, @Component, @Autowired)
• Dependency Injection & Inversion of Control (IoC)
• Application Properties & YAML configuration
• Logging with SLF4J and Logback

Module 3: Building REST APIs

• Introduction to REST architecture
• Creating RESTful endpoints using @RestController
• Handling GET, POST, PUT, DELETE methods
• Request parameters, path variables, and request bodies
• Exception handling with @ControllerAdvice

Module 4: Working with Databases (JPA + Hibernate)

• Introduction to Spring Data JPA
• Entity creation and ORM mapping
• Repository pattern (JpaRepository)
• CRUD operations with MySQL/PostgreSQL
• Custom queries using @Query and JPQL
• Pagination and Sorting

Module 5: Validations & Exception Handling

• Bean Validation API (@Valid, @NotNull, etc.)
• Custom error responses
• Global exception handling

Module 6: Spring Boot Security (Optional / Intermediate)

• Basic authentication and role-based access
• Secure APIs with Spring Security
• JWT (JSON Web Token) introduction
• Securing endpoints with filters and tokens

Module 7: Consuming APIs & REST Clients

• Using RestTemplate and WebClient
• Calling third-party APIs
• Error handling and retries

Module 8: Advanced Topics (Optional / Extended)

• Spring Boot + Thymeleaf (basic UI rendering)
• File upload and download in REST APIs
• Scheduling tasks with @Scheduled
• Spring Boot Actuator & Monitoring
• Caching with Spring Boot
• Intro to Dockerizing Spring Boot apps

Module 9: Mini Project

• Example Projects:
  • Employee Management System
  • Student Portal Backend
  • Task Management API
• Use Spring Boot, JPA, and REST APIs
• Integrate Swagger for API documentation

Module 10: Deployment & Git

• Pushing code to GitHub
• Creating executable JARs
• Deploying to Heroku / Render / Railway
• Intro to CI/CD basics (optional)