bootcamp-demo-springboot

• Depdency: Lombok, Spring Web, DevTools
• COntroller:
  • Class level Annotation: @Controller + @ResponseBody, @RequestMapping
  • Method level Annotation: @GetMapping -> URI Path
• API return different types: primitives, wrapper class, String, custom objects
• application.yml -> server.port
• JSON <-> CLass interchange design

Summary

• Global Exception Handler (@RestControllerAdvice)
  • @ExceptionHandler + @ResponseStatus
• Data Transfer Object (DTO)
  • Objectives: serve API Consumers (DTO = self-defined type)
  • Data object for Receiving API Response (DTO = controlled by API provider)
• Mapper
  • Self-defined mapper (GovMapper.class)
  • Model Mapper (dependencies)
• Library (Infa)
  • ApiResponse.class
  • Syscode.class
  • BcUtil.class (utility - static method)
  • BusinessException (Exception Framework - RuntimeException & CheckException)
• RestTemplate (call external restful API)
  • UriComponentBuilder (host(), path(), toUriString())
• @Value
  • Read yml config