API 개발 기본 포스트맨을 설치해서 API 개발 예제를 실습해보자. 포스트맨 설치 : https://www.getpostman.com Postman API Platform | Sign Up for Free Postman is an API platform for building and using APIs. Postman simplifies each step of the API lifecycle and streamlines collaboration so you can create better APIs—faster. www.postman.com 회원 등록 API package jpabook.jpashop.domain; import lombok.Getter; import lombok.Setter; import..