Rest API with Spring Boot

Building REST API with Spring Boot, Kotlin, FlywayDB, PostgreSQL and Test with JUnit and Mockito. Case study Shopping Cart API.

Transcript

1. Rest API with Spring Boot Asroni Hidayat Fahmi
2. About Spring Boot •Simplicity and speed of development improvement •Convention over configuration / Automatic configure •Dependencies management without name and versions (spring-boot-starter-*) •No XML configuration •Embedded Tomcat or Jetty (Stand-alone Apps) •Support Maven & Gradle
3. @SpringBootApplication class SpringBootApplication{ } fun main(args: Array<String>) { runApplication<SupringBootApplication>(*args) }
4. Dependency management without names and versions
5. Embedded Jetty / Tomcat
6. Architecture
7. Project Structure
8. Annotation/Configuration Name Description @SpringBootApplication Entry point of spring boot config to use auto-configuration, component scan and be able to define extra configuration on their "application class" @Configuration Mark class as config class @EnableJpaAuditing Transparently keep track of who created or changed an entity and the point in time this happened @Repository Mark the specific class as a Data Access Object, persistence layer @Autowired Tells DI container for dependency injection @Service Service layer @Controller Presentation layer @RestController Presentation layer for REST @ControllerAdvice Apply globally to all Controllers @ExceptionHandler Annotation for handling exceptions in specific handler classes and/or handler methods.
9. Configuration Name Description @RequestMapping Mapping an HTTP request to a method using some basic criteria @RequestParam obtain an parameter from the URI / form @RequestBody @Valid Body of the web request, validate & deserialized to object @Transactional Handling transaction @PathVariable Annotation which indicates that a method parameter should be bound to a URI template variable And many more, please check Spring documentation
10. Let’s Try!
11. Database Schema
12. Dependencies
13. Sample Code https://github.com/asronihidayat/spring-boot-sampl es/
14. References •https://docs.spring.io/spring-boot/docs/current-SN APSHOT/reference/htmlsingle •https://docs.spring.io/spring-framework/docs/5.1. 0.BUILD-SNAPSHOT/spring-framework-reference/ •https://player.oreilly.com/videos/9781491970829 /