패스트캠퍼스 챌린지 24일차

Part 1. Spring Framework

 Ch 03. 예제를 만들며 이해하는 스프링 웹 어플리케이션 핵심 기술

  10. 간단한 http 테스트 만들기

package com.fastcampus.programmin.dmaker.service;

import com.fastcampus.programmin.dmaker.Repository.DeveloperRepository;
import com.fastcampus.programmin.dmaker.dto.CreateDeveloper;
import com.fastcampus.programmin.dmaker.entity.Developer;
import com.fastcampus.programmin.dmaker.type.DeveloperLevel;
import com.fastcampus.programmin.dmaker.type.DeveloperSkillType;
import exception.DMakerErrorCode;
import exception.DMakerException;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Service;

import javax.persistence.EntityManager;
import javax.transaction.Transactional;
import javax.validation.Valid;

import java.util.Optional;

import static exception.DMakerErrorCode.*;


@Service
@RequiredArgsConstructor
public class dMakerService {
    private final DeveloperRepository developerRepository;
    private final EntityManager em;

    @Transactional
    public CreateDeveloper.Response createDeveloper(CreateDeveloper.Request request) {
        validateCreateDeveloperRequest(request);
        //business logic start
//        Developer.DeveloperBuilder builder = Developer.builder();
//        builder.developerLevel(request.getDeveloperLevel());
//        builder.developerSkillType(request.getDeveloperSkillType());
//        builder.experienceYears(request.getExperienceYears());
//        builder.memberId(request.getMemberId());
//        builder.name(request.getName());
//        builder.age(request.getAge());
//        Developer developer = builder
//                .build();
        Developer developer = Developer.builder()
                .developerLevel(request.getDeveloperLevel())
                .developerSkillType(request.getDeveloperSkillType())
                .experienceYears(request.getExperienceYears())
                .memberId(request.getMemberId())
                .name(request.getName())
                .age(request.getAge())
                .build();
        /* A -> B 1만원 송금 */
        // A 계좌에서 1만원 줄임
        developerRepository.save(developer);
        // B 계좌에서 1만원 늘림림
        //developerRepository.delete(developer1);

        return CreateDeveloper.Response.fromEntity(developer);
    }

    private void validateCreateDeveloperRequest(CreateDeveloper.Request request) {
        DeveloperLevel developerLevel = request.getDeveloperLevel();
        Integer experienceYears = request.getExperienceYears();
        if (developerLevel == DeveloperLevel.SENIOR
                && experienceYears < 10) {
            throw new DMakerException(LEVEL_EXPERIENCE_YEARS_NOT_MATCHED);
        }
        if (developerLevel == DeveloperLevel.JUNGNior
                && (experienceYears < 4 || experienceYears > 10))
            throw new DMakerException(LEVEL_EXPERIENCE_YEARS_NOT_MATCHED);
        if (developerLevel == DeveloperLevel.JUNIOR && experienceYears > 4)
            throw new DMakerException(LEVEL_EXPERIENCE_YEARS_NOT_MATCHED);

        developerRepository.findByMemberId(request.getMemberId())
                .ifPresent((developer -> {
            throw new DMakerException(DUPLICATED_MEMBER_ID);
    }));
}
}

<DMakerService.java>

 

package com.fastcampus.programmin.dmaker.controller;

import com.fastcampus.programmin.dmaker.dto.CreateDeveloper;
import com.fastcampus.programmin.dmaker.service.dMakerService;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;

import javax.validation.Valid;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

@Slf4j
@RestController //사용자의 요청을 받아 json 형태로 응답을 반환 //ctrl + 클릭
@RequiredArgsConstructor

// DMakerController(Bean)   DMakerService(Bean)   DeveloperRepository(Bean)
//===========================Spring Application =============================
//
//


public class DMakerController {
    private final dMakerService dMakerService;

    @GetMapping("/developers") //사용자 요청이 /developers를 통해 들어온다면 (ex] GET /developers HTTP/1.1)
    //
    public List<String> getAllDevelopers() {
        // GET /Developers HTTP/1.1
        log.info("GET /developers HTTP/1.1");

        return Arrays.asList("snow", "elsa", "Olaf");
    }

    @PostMapping("/create-developer")

    public CreateDeveloper.Response createDevelopers(
        @Valid @RequestBody CreateDeveloper.Request request
    )
        {
            log.info("request : {}", request);

            return dMakerService.createDeveloper(request);

            //return Collections.singletonList("Olaf");
        }

}

<DMakerController.java>

 

### Send POST request with json body
POST http://localhost:8080/create-developer
Content-Type: application/json

{
  "developerLevel": "JUNIOR",
  "developerSkillType": "FRONT_END",
  "experienceYears": 2,
  "memberId": "Micky",
  "name": "mouse",
  "age": 20
}

<dev.create.http>

 

 

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