feat: movie controller integration test (#96)

* feat: 리프레쉬토큰 및 로그아웃 통합테스트 작성

* refactor: import 정리

README.md

@@ -91,7 +91,7 @@ erDiagram
         bigint seat_id FK "좌석 ID"
         bigint movie_time_id FK "상영시간표 ID"
         bigint payment_id "결제 ID"
-        varchar status "상태 - 구매가능/예약진행중/판매완료"
+        varchar status "상태 - 판매가능/예약/"
         int ticket_price "가격"
         datetime deleted_at "삭제일시"
         datetime created_at "등록일시"
@@ -101,10 +101,11 @@ erDiagram
     PAYMENT {
         bigint id PK "결제 ID"
         bigint user_alternate_id "유저 대체ID"
+        varchar tid "카카오페이 결제고유번호"
         varchar movie_title "영화제목"
         varchar type "결제 타입 - 예) 네이버페이, 카카오페이"
-        varchar status "상태 - 완료/환불/실패"
-        varchar failed_message "실패사유 - 컬럼명을 알아보기 쉬운가?"
+        varchar status "상태 - 완료/환불"
+        varchar failed_message "실패사유"
         varchar payment_number "예매번호"
         int total_price "결제 금액"
         datetime deleted_at "삭제일시"

server/.gitignore

@@ -6,6 +6,7 @@
 # Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
 
 HELP.md
+bin/**
 
 # User-specific stuff
 .idea/**/workspace.xml

server/Dockerfile

@@ -0,0 +1,12 @@
+FROM openjdk:11-jre-slim
+
+ENV APP_HOME=/usr/app/
+
+WORKDIR $APP_HOME
+
+COPY build/libs/server-0.0.1-SNAPSHOT.jar application.jar
+
+EXPOSE 8443
+EXPOSE 8080
+
+CMD ["java", "-jar", "application.jar"]

server/build.gradle.kts

@@ -23,6 +23,8 @@ repositories {
 	mavenCentral()
 }
 
+extra["springCloudVersion"] = "2021.0.3"
+
 dependencies {
 	implementation("org.springframework.boot:spring-boot-starter-data-jpa")
 	implementation("org.springframework.boot:spring-boot-starter-security")
@@ -39,6 +41,10 @@ dependencies {
 	implementation("com.googlecode.json-simple:json-simple:1.1.1")
 	implementation("org.springframework.boot:spring-boot-starter-data-redis")
 	implementation("com.google.code.findbugs:jsr305:3.0.2")
+	implementation ("org.springframework.cloud:spring-cloud-starter-config")
+	implementation("org.springframework.cloud:spring-cloud-starter-openfeign")
+	implementation("io.micrometer:micrometer-core")
+	implementation("io.micrometer:micrometer-registry-prometheus")
 
 	modules {
 		module("org.springframework.boot:spring-boot-starter-logging") {
@@ -58,6 +64,12 @@ dependencies {
 	testImplementation("org.springframework.security:spring-security-test")
 }
 
+dependencyManagement {
+	imports {
+		mavenBom("org.springframework.cloud:spring-cloud-dependencies:${property("springCloudVersion")}")
+	}
+}
+
 tasks.withType<Test> {
 	useJUnitPlatform()
 }

server/src/intTest/java/com/ticketing/server/global/config/WithAuthUser.java

@@ -0,0 +1,15 @@
+package com.ticketing.server.global.config;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import org.springframework.security.test.context.support.WithSecurityContext;
+
+@Retention(RetentionPolicy.RUNTIME)
+@WithSecurityContext(factory = WithAuthUserSecurityContextFactory.class)
+public @interface WithAuthUser {
+
+	String email();
+
+	String role();
+
+}

server/src/intTest/java/com/ticketing/server/global/config/WithAuthUserSecurityContextFactory.java

@@ -0,0 +1,27 @@
+package com.ticketing.server.global.config;
+
+import java.util.List;
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
+import org.springframework.security.core.authority.SimpleGrantedAuthority;
+import org.springframework.security.core.context.SecurityContext;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.security.core.userdetails.User;
+import org.springframework.security.test.context.support.WithSecurityContextFactory;
+
+public class WithAuthUserSecurityContextFactory implements WithSecurityContextFactory<WithAuthUser> {
+
+	@Override
+	public SecurityContext createSecurityContext(WithAuthUser annotation) {
+		String email = annotation.email();
+		String role = annotation.role();
+		List<SimpleGrantedAuthority> authorities = List.of(new SimpleGrantedAuthority(role));
+
+		User authUser = new User(email, "", authorities);
+		UsernamePasswordAuthenticationToken token =
+			new UsernamePasswordAuthenticationToken(authUser, "", authorities);
+		SecurityContext context = SecurityContextHolder.getContext();
+		context.setAuthentication(token);
+		return context;
+	}
+
+}

server/src/intTest/java/com/ticketing/server/movie/aop/TicketLockAspectTest.java

@@ -0,0 +1,56 @@
+package com.ticketing.server.movie.aop;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertAll;
+
+import java.util.List;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.atomic.AtomicBoolean;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class TicketLockAspectTest {
+
+	@Autowired
+	private TicketLockAspect ticketLockAspect;
+
+	@Test
+	@DisplayName("티켓 lock 동시성 체크")
+	@SuppressWarnings({"java:S5960"})
+	void ticketMultiThread() throws InterruptedException {
+		// given
+		ExecutorService executorService = Executors.newFixedThreadPool(2);
+		CountDownLatch latch = new CountDownLatch(2);
+
+		List<String> lockIds = List.of("TicketLock:1", "TicketLock:2", "TicketLock:3");
+		AtomicBoolean result1 = new AtomicBoolean(Boolean.TRUE);
+		AtomicBoolean result2 = new AtomicBoolean(Boolean.TRUE);
+
+		// when
+		executorService.execute(() -> {
+			result1.set(ticketLockAspect.isEveryTicketIdLock(lockIds));
+			latch.countDown();
+		});
+
+		executorService.execute(() -> {
+			result2.set(ticketLockAspect.isEveryTicketIdLock(List.of("TicketLock:1")));
+			latch.countDown();
+		});
+
+		latch.await();
+
+		// then
+		Long unlockCount = ticketLockAspect.ticketIdsUnlock(lockIds);
+
+		assertAll(
+			() -> assertThat(result1).isNotEqualTo(result2),
+			() -> assertThat(unlockCount > 0).isTrue()
+		);
+	}
+
+}

server/src/intTest/java/com/ticketing/server/movie/application/MovieControllerTest.java

@@ -0,0 +1,202 @@
+package com.ticketing.server.movie.application;
+
+import static org.springframework.http.MediaType.APPLICATION_JSON;
+import static org.springframework.security.test.web.servlet.setup.SecurityMockMvcConfigurers.springSecurity;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.delete;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.ticketing.server.global.config.WithAuthUser;
+import com.ticketing.server.movie.application.request.MovieDeleteRequest;
+import com.ticketing.server.movie.application.request.MovieRegisterRequest;
+import com.ticketing.server.user.domain.UserGrade.ROLES;
+import org.json.simple.JSONObject;
+import org.json.simple.JSONArray;
+import org.json.simple.parser.JSONParser;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.MvcResult;
+import org.springframework.test.web.servlet.ResultActions;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.context.WebApplicationContext;
+
+@SpringBootTest
+@Transactional
+public class MovieControllerTest {
+
+	@Autowired
+	ObjectMapper mapper;
+
+	@Autowired
+	WebApplicationContext context;
+
+	MockMvc mvc;
+
+	JSONParser jsonParser = new JSONParser();
+
+	private static final String MOVIES_URL = "/api/movies";
+
+	private static final Long RUNNING_TIME = 100L;
+	private static final String MOVIE_TITLE = "등록할 영화";
+
+	private static final String TITLE = "$.title";
+	private static final String MOVIE_DTOS = "$.movieDtos";
+
+	@BeforeEach
+	void init() {
+		mvc = MockMvcBuilders
+			.webAppContextSetup(context)
+			.apply(springSecurity())
+			.build();
+	}
+
+	@Test
+	@DisplayName("영화 등록 성공")
+	@WithAuthUser(email = "staff@ticketing.com", role = ROLES.STAFF)
+	void movieRegisterSuccess() throws Exception {
+
+		MovieRegisterRequest request = new MovieRegisterRequest(MOVIE_TITLE, RUNNING_TIME);
+
+		ResultActions resultActions = mvc.perform(post(MOVIES_URL)
+			.content(mapper.writeValueAsString(request))
+			.contentType(MediaType.APPLICATION_JSON));
+
+		resultActions
+			.andExpect(status().isOk())
+			.andExpect(content().contentType(APPLICATION_JSON))
+			.andExpect(jsonPath(TITLE).value(MOVIE_TITLE));
+
+	}
+
+	@Test
+	@DisplayName("영화 등록 실패 - 권한 부족")
+	@WithAuthUser(email = "user@ticketing.com", role = ROLES.USER)
+	void movieRegisterFailWithLowAuthority() throws Exception {
+
+		MovieRegisterRequest request = new MovieRegisterRequest(MOVIE_TITLE, RUNNING_TIME);
+
+		ResultActions resultActions = mvc.perform(post(MOVIES_URL)
+			.content(mapper.writeValueAsString(request))
+			.contentType(APPLICATION_JSON));
+
+		resultActions.andExpect(status().isForbidden());
+
+	}
+
+	@Test
+	@DisplayName("영화 등록 실패 - 인자값 검증 실패")
+	@WithAuthUser(email = "staff@ticketing.com", role = ROLES.ADMIN)
+	void movieRegisterFailWithWrongParameter() throws Exception {
+
+		MovieRegisterRequest requestWithNullRunningTime = new MovieRegisterRequest(MOVIE_TITLE, null);
+
+		// 1. 상영 시간 null
+		ResultActions resultActions = mvc.perform(post(MOVIES_URL)
+			.content(mapper.writeValueAsString(requestWithNullRunningTime))
+			.contentType(APPLICATION_JSON));
+
+		resultActions.andExpect(status().isBadRequest());
+
+		// 2. 영화 제목 null
+		MovieRegisterRequest requestWithNullTitle = new MovieRegisterRequest(null, RUNNING_TIME);
+
+		resultActions = mvc.perform(post(MOVIES_URL)
+			.content(mapper.writeValueAsString(requestWithNullTitle))
+			.contentType(APPLICATION_JSON));
+
+		resultActions.andExpect(status().isBadRequest());
+
+		// 3. 영화 제목 ""
+		MovieRegisterRequest requestWithoutTitle = new MovieRegisterRequest("", RUNNING_TIME);
+
+		resultActions = mvc.perform(post(MOVIES_URL)
+			.content(mapper.writeValueAsString(requestWithoutTitle))
+			.contentType(APPLICATION_JSON));
+
+		resultActions.andExpect(status().isBadRequest());
+
+	}
+
+	@Test
+	@DisplayName("영화 등록 실패 - 같은 영화 중복 등록")
+	@WithAuthUser(email = "staff@ticketing.com", role = ROLES.ADMIN)
+	void movieRegisterFailWithSameMovie() throws Exception {
+
+		// given
+		MovieRegisterRequest request = new MovieRegisterRequest(MOVIE_TITLE, RUNNING_TIME);
+
+		mvc.perform(post(MOVIES_URL)
+			.content(mapper.writeValueAsString(request))
+			.contentType(APPLICATION_JSON))
+			.andExpect(status().isOk());
+
+		// when
+		ResultActions resultActions = mvc.perform(post(MOVIES_URL)
+			.content(mapper.writeValueAsString(request))
+			.contentType(APPLICATION_JSON));
+
+		// then
+		resultActions.andExpect(status().isConflict());
+
+	}
+
+	@Test
+
+	@DisplayName("영화 삭제 성공")
+	@WithAuthUser(email = "staff@ticketing.com", role = ROLES.ADMIN)
+	void movieDeleteSuccess() throws Exception {
+
+		// given
+		MovieRegisterRequest request = new MovieRegisterRequest(MOVIE_TITLE, RUNNING_TIME);
+
+		mvc.perform(post(MOVIES_URL)
+				.content(mapper.writeValueAsString(request))
+				.contentType(APPLICATION_JSON))
+			.andExpect(status().isOk());
+
+		// when
+		// 1. 영화 조회 - 삭제할 영화 ID 뽑기
+		ResultActions resultActions = mvc.perform(get(MOVIES_URL)
+				.contentType(APPLICATION_JSON));
+		resultActions
+			.andDo(print())
+			.andExpect(status().isOk())
+			.andExpect(jsonPath(MOVIE_DTOS).isNotEmpty());
+
+		MvcResult result = resultActions.andReturn();
+		Object obj = jsonParser.parse(result.getResponse().getContentAsString());
+		JSONObject jsonObject = (JSONObject) obj;
+
+		Object object =  jsonObject.get("movieDtos");
+		JSONArray jsonArray = (JSONArray) object;
+		JSONObject jsonObj = (JSONObject) jsonArray.get(0);
+
+		Long movieId = (Long) jsonObj.get("movieId");
+
+		// 2. 영화 삭제 - 해당 ID
+		MovieDeleteRequest movieDeleteRequest = new MovieDeleteRequest(movieId);
+
+		mvc.perform(delete(MOVIES_URL)
+				.content(mapper.writeValueAsString(movieDeleteRequest))
+				.contentType(APPLICATION_JSON))
+			.andExpect(status().isOk());
+
+		// then - 삭제한 영화랑 같은 제목의 영화 등록이 성공하는지 확인
+		mvc.perform(post(MOVIES_URL)
+				.content(mapper.writeValueAsString(request))
+				.contentType(APPLICATION_JSON))
+			.andExpect(status().isOk());
+	}
+
+}

server/src/intTest/java/com/ticketing/server/user/application/AuthControllerTest.java

@@ -1,5 +1,7 @@
 package com.ticketing.server.user.application;
 
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertAll;
 import static org.springframework.security.test.web.servlet.setup.SecurityMockMvcConfigurers.springSecurity;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
 import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
@@ -9,8 +11,11 @@ import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.ticketing.server.global.redis.RefreshRedisRepository;
 import com.ticketing.server.user.application.request.LoginRequest;
+import com.ticketing.server.user.application.request.RefreshRequest;
 import com.ticketing.server.user.application.request.SignUpRequest;
+import com.ticketing.server.user.application.response.TokenResponse;
 import com.ticketing.server.user.service.interfaces.UserService;
+import java.util.concurrent.TimeUnit;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
@@ -30,8 +35,12 @@ import org.springframework.web.context.WebApplicationContext;
 class AuthControllerTest {
 
 	private static final String LOGIN_URL = "/api/auth/token";
+	private static final String REFRESH_URL = "/api/auth/refresh";
+	private static final String LOGOUT_URL = "/api/auth/logout";
 	private static final String REGISTER_URL = "/api/users";
+
 	private static final String USER_EMAIL = "ticketing@gmail.com";
+	private static final String USER_PW = "qwe123";
 
 	@Autowired
 	WebApplicationContext context;
@@ -54,7 +63,7 @@ class AuthControllerTest {
 	@DisplayName("로그인 인증 성공")
 	void loginSuccess() throws Exception {
 		// given
-		LoginRequest request = new LoginRequest(USER_EMAIL, "qwe123");
+		LoginRequest request = new LoginRequest(USER_EMAIL, USER_PW);
 
 		// when
 		ResultActions actions = mvc.perform(post(LOGIN_URL)
@@ -82,6 +91,69 @@ class AuthControllerTest {
 			.andExpect(status().isUnauthorized());
 	}
 
+	@Test
+	@DisplayName("리프레쉬 토큰 발급 성공")
+	void refreshTokenSuccess() throws Exception {
+		// given
+		LoginRequest loginRequest = new LoginRequest(USER_EMAIL, USER_PW);
+
+		// when
+		// 로그인
+		String loginResponseBody = mvc.perform(post(LOGIN_URL)
+				.content(asJsonString(loginRequest))
+				.contentType(MediaType.APPLICATION_JSON))
+			.andReturn()
+			.getResponse()
+			.getContentAsString();
+
+		TokenResponse loginResponse = objectMapper.readValue(loginResponseBody, TokenResponse.class);
+		RefreshRequest refreshRequest = new RefreshRequest(loginResponse.getRefreshToken());
+
+		// 토큰재발급
+		String refreshResponseBody = mvc.perform(post(REFRESH_URL)
+				.content(asJsonString(refreshRequest))
+				.contentType(MediaType.APPLICATION_JSON))
+			.andReturn()
+			.getResponse()
+			.getContentAsString();
+
+		TokenResponse refreshBody = objectMapper.readValue(refreshResponseBody, TokenResponse.class);
+
+		// then
+		assertAll(
+			() -> assertThat(refreshBody.getAccessToken()).isNotEmpty(),
+			() -> assertThat(refreshBody.getRefreshToken()).isNotEmpty(),
+			() -> assertThat(loginResponse.getTokenType()).isEqualTo(refreshBody.getTokenType()),
+			() -> assertThat(loginResponse.getExpiresIn()).isEqualTo(refreshBody.getExpiresIn())
+		);
+	}
+
+	@Test
+	@DisplayName("로그아웃 성공")
+	void logoutSuccess() throws Exception {
+		// given
+		LoginRequest loginRequest = new LoginRequest(USER_EMAIL, USER_PW);
+
+		// 로그인
+		String loginResponseBody = mvc.perform(post(LOGIN_URL)
+				.content(asJsonString(loginRequest))
+				.contentType(MediaType.APPLICATION_JSON))
+			.andReturn()
+			.getResponse()
+			.getContentAsString();
+
+		TokenResponse loginResponse = objectMapper.readValue(loginResponseBody, TokenResponse.class);
+		String authorization = loginResponse.getTokenType() + " " + loginResponse.getAccessToken();
+
+		// 로그아웃
+		ResultActions actions = mvc.perform(post(LOGOUT_URL)
+			.header("Authorization", authorization));
+
+		// then
+		actions.andDo(print())
+			.andExpect(status().isOk());
+	}
+
 	@BeforeEach
 	void init() throws Exception {
 		mvc = MockMvcBuilders
@@ -89,7 +161,7 @@ class AuthControllerTest {
 			.apply(springSecurity())
 			.build();
 
-		SignUpRequest signUpRequest = new SignUpRequest("ticketing", USER_EMAIL, "qwe123", "010-1234-5678");
+		SignUpRequest signUpRequest = new SignUpRequest("ticketing", USER_EMAIL, USER_PW, "010-1234-5678");
 
 		mvc.perform(post(REGISTER_URL)
 			.content(asJsonString(signUpRequest))
@@ -102,6 +174,7 @@ class AuthControllerTest {
 	}
 
 	private String asJsonString(Object object) throws JsonProcessingException {
+
 		return objectMapper.writeValueAsString(object);
 	}
 

server/src/intTest/java/com/ticketing/server/user/application/UserControllerTest.java

@@ -1,7 +1,241 @@
 package com.ticketing.server.user.application;
 
-import static org.junit.jupiter.api.Assertions.*;
+import static org.springframework.http.MediaType.APPLICATION_JSON;
+import static org.springframework.security.test.web.servlet.setup.SecurityMockMvcConfigurers.springSecurity;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.delete;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.put;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.ticketing.server.global.config.WithAuthUser;
+import com.ticketing.server.user.application.request.LoginRequest;
+import com.ticketing.server.user.application.request.SignUpRequest;
+import com.ticketing.server.user.application.request.UserChangeGradeRequest;
+import com.ticketing.server.user.application.request.UserChangePasswordRequest;
+import com.ticketing.server.user.application.request.UserDeleteRequest;
+import com.ticketing.server.user.domain.UserGrade;
+import com.ticketing.server.user.domain.UserGrade.ROLES;
+import com.ticketing.server.user.domain.repository.UserRepository;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.ResultActions;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.context.WebApplicationContext;
+
+@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
+@Transactional
 class UserControllerTest {
 
+	private static final String LOGIN_URL = "/api/auth/token";
+
+	private static final String BASICS_URL = "/api/users";
+	private static final String DETAILS_URL = "/api/users/details";
+	private static final String CHANGE_PASSWORD_URL = "/api/users/password";
+	private static final String CHANGE_GRADE_URL = "/api/users/grade";
+
+	private static final String NAME = "$.name";
+	private static final String EMAIL = "$.email";
+	private static final String GRADE = "$.grade";
+	private static final String PHONE = "$.phone";
+	private static final String BEFORE_GRADE = "$.beforeGrade";
+	private static final String AFTER_GRADE = "$.afterGrade";
+
+	private static final String USER_EMAIL = "testemail@ticketing.com";
+	private static final String USER_PW = "qwe123";
+	private static final String USER_NAME = "김철수";
+	private static final String USER_PHONE = "010-1234-5678";
+
+	@Autowired
+	UserRepository userRepository;
+
+	@Autowired
+	ObjectMapper mapper;
+
+	@Autowired
+	WebApplicationContext context;
+
+	MockMvc mvc;
+
+	SignUpRequest signUpRequest;
+
+	@Test
+	@DisplayName("회원가입 성공")
+	void registerSuccess() throws Exception {
+		// given
+		// when
+		ResultActions resultActions = mvc.perform(
+			post(BASICS_URL)
+				.content(mapper.writeValueAsString(signUpRequest))
+				.contentType(APPLICATION_JSON)
+		);
+
+		// then
+		resultActions
+			.andExpect(status().isCreated())
+			.andExpect(content().contentType(APPLICATION_JSON))
+			.andExpect(jsonPath(NAME).value(USER_NAME))
+			.andExpect(jsonPath(EMAIL).value(USER_EMAIL));
+	}
+
+	@Test
+	@DisplayName("유저 정보 조회")
+	@WithAuthUser(email = USER_EMAIL, role = ROLES.USER)
+	void detailsSuccess() throws Exception {
+		// given
+		mvc.perform(
+			post(BASICS_URL)
+				.content(mapper.writeValueAsString(signUpRequest))
+				.contentType(APPLICATION_JSON)
+		);
+
+		// when
+		ResultActions resultActions = mvc.perform(
+			get(DETAILS_URL)
+				.content(mapper.writeValueAsString(signUpRequest))
+				.contentType(APPLICATION_JSON)
+		);
+
+		// then
+		resultActions
+			.andExpect(status().isOk())
+			.andExpect(content().contentType(APPLICATION_JSON))
+			.andExpect(jsonPath(NAME).value(USER_NAME))
+			.andExpect(jsonPath(EMAIL).value(USER_EMAIL))
+			.andExpect(jsonPath(GRADE).value(UserGrade.USER.name()))
+			.andExpect(jsonPath(PHONE).value(USER_PHONE));
+	}
+
+	@Test
+	@DisplayName("유저 탈퇴 성공")
+	@WithAuthUser(email = USER_EMAIL, role = ROLES.USER)
+	void deleteUserSuccess() throws Exception {
+		// given
+		UserDeleteRequest deleteRequest = new UserDeleteRequest(USER_EMAIL, USER_PW);
+		LoginRequest loginRequest = new LoginRequest(USER_EMAIL, USER_PW);
+		mvc.perform(
+			post(BASICS_URL)
+				.content(mapper.writeValueAsString(signUpRequest))
+				.contentType(APPLICATION_JSON)
+		);
+
+		// when
+
+		// 1. 회원 탈퇴 진행
+		mvc.perform(
+			delete(BASICS_URL)
+				.content(mapper.writeValueAsString(deleteRequest))
+				.contentType(APPLICATION_JSON)
+		);
+
+		// 2. 탈퇴된 계정 로그인
+		ResultActions resultActions = mvc.perform(post(LOGIN_URL)
+			.content(mapper.writeValueAsString(loginRequest))
+			.contentType(MediaType.APPLICATION_JSON));
+
+		// then
+		resultActions
+			.andExpect(status().isUnauthorized());
+	}
+
+	@Test
+	@DisplayName("비밀번호 변경 성공")
+	@WithAuthUser(email = USER_EMAIL, role = ROLES.USER)
+	void changePasswordSuccess() throws Exception {
+		// given
+		UserChangePasswordRequest changePasswordRequest = new UserChangePasswordRequest(USER_PW, "qwe1234");
+		LoginRequest loginRequest = new LoginRequest(USER_EMAIL, USER_PW);
+		mvc.perform(
+			post(BASICS_URL)
+				.content(mapper.writeValueAsString(this.signUpRequest))
+				.contentType(APPLICATION_JSON)
+		);
+
+		// when
+
+		// 1. 패스워드 변경
+		mvc.perform(
+				put(CHANGE_PASSWORD_URL)
+					.content(mapper.writeValueAsString(changePasswordRequest))
+					.contentType(APPLICATION_JSON)
+			)
+			.andExpect(status().isOk());
+
+		// 2. 변경 전 계정으로 로그인
+		ResultActions resultActions = mvc.perform(post(LOGIN_URL)
+			.content(mapper.writeValueAsString(loginRequest))
+			.contentType(MediaType.APPLICATION_JSON));
+
+		// then
+		resultActions
+			.andExpect(status().isUnauthorized());
+	}
+
+	@Test
+	@DisplayName("유저 등급 변경")
+	@WithAuthUser(email = "admin@ticketing.com", role = ROLES.ADMIN)
+	void changeGradeSuccess() throws Exception {
+		// given
+		UserChangeGradeRequest changeGradeRequest = new UserChangeGradeRequest(USER_EMAIL, UserGrade.STAFF);
+		mvc.perform(
+			post(BASICS_URL)
+				.content(mapper.writeValueAsString(signUpRequest))
+				.contentType(APPLICATION_JSON)
+		);
+
+		// when
+		ResultActions resultActions = mvc.perform(
+			post(CHANGE_GRADE_URL)
+				.content(mapper.writeValueAsString(changeGradeRequest))
+				.contentType(APPLICATION_JSON)
+		);
+
+		// then
+		resultActions
+			.andExpect(status().isOk())
+			.andExpect(content().contentType(APPLICATION_JSON))
+			.andExpect(jsonPath(EMAIL).value(USER_EMAIL))
+			.andExpect(jsonPath(BEFORE_GRADE).value(UserGrade.USER.name()))
+			.andExpect(jsonPath(AFTER_GRADE).value(UserGrade.STAFF.name()));
+	}
+
+	@Test
+	@DisplayName("유저 등급 변경 실패 - 권한 등급이 낮을 경우")
+	@WithAuthUser(email = "staff@ticketing.com", role = ROLES.STAFF)
+	void changeGradeFail() throws Exception {
+		// given
+		UserChangeGradeRequest changeGradeRequest = new UserChangeGradeRequest(USER_EMAIL, UserGrade.STAFF);
+
+		// when
+		ResultActions resultActions = mvc.perform(
+			post(CHANGE_GRADE_URL)
+				.content(mapper.writeValueAsString(changeGradeRequest))
+				.contentType(APPLICATION_JSON)
+		);
+
+		// then
+		resultActions
+			.andExpect(status().isForbidden());
+	}
+
+	@BeforeEach
+	void init() {
+		mvc = MockMvcBuilders
+			.webAppContextSetup(context)
+			.apply(springSecurity())
+			.build();
+
+		signUpRequest = new SignUpRequest(USER_NAME, USER_EMAIL, USER_PW, USER_PHONE);
+	}
+
 }

server/src/intTest/resources/application.yml

@@ -20,6 +20,9 @@ spring:
     pathmatch:
       matching-strategy: ant_path_matcher
 
+  config:
+    import: "optional:configserver:"
+
 jasypt:
   encryptor:
     bean: jasyptStringEncryptor

server/src/main/java/com/ticketing/server/ServerApplication.java

@@ -1,14 +1,17 @@
 package com.ticketing.server;
 
 import com.ticketing.server.global.security.jwt.JwtProperties;
+import com.ticketing.server.payment.api.KakaoPayProperties;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.cloud.openfeign.EnableFeignClients;
 import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
 
 @EnableJpaAuditing
+@EnableFeignClients
 @SpringBootApplication
-@EnableConfigurationProperties(JwtProperties.class)
+@EnableConfigurationProperties({JwtProperties.class, KakaoPayProperties.class})
 public class ServerApplication {
 
 	public static void main(String[] args) {

server/src/main/java/com/ticketing/server/global/dto/SequenceGenerator.java

@@ -1,4 +1,4 @@
-package com.ticketing.server.user.domain;
+package com.ticketing.server.global.dto;
 
 public interface SequenceGenerator {
 

server/src/main/java/com/ticketing/server/global/dto/Snowflake.java

@@ -1,4 +1,4 @@
-package com.ticketing.server.user.domain;
+package com.ticketing.server.global.dto;
 
 import java.net.NetworkInterface;
 import java.security.SecureRandom;

server/src/main/java/com/ticketing/server/global/exception/ErrorCode.java

@@ -18,6 +18,16 @@ public enum ErrorCode {
 	TOKEN_TYPE(BAD_REQUEST, "토큰 타입이 올바르지 않습니다."),
 	UNAVAILABLE_REFRESH_TOKEN(BAD_REQUEST, "사용할 수 없는 토큰 입니다."),
 	UNABLE_CHANGE_GRADE(BAD_REQUEST, "동일한 등급으로 변경할 수 없습니다."),
+	INVALID_TICKET_ID(BAD_REQUEST, "잘못된 티켓 ID가 존재합니다."),
+	BAD_REQUEST_MOVIE_TIME(BAD_REQUEST, "동일한 상영시간만 결제 가능합니다."),
+	BAD_REQUEST_PAYMENT_COMPLETE(BAD_REQUEST, "처리할 결제 정보가 존재하지 않습니다."),
+	BAD_REQUEST_PAYMENT_READY(BAD_REQUEST, "이미 진행 중인 결제가 존재합니다."),
+	BAD_REQUEST_PAYMENT_CANCEL(BAD_REQUEST, "취소할 티켓이 존재하지 않습니다."),
+	BAD_REQUEST_TICKET_RESERVATION(BAD_REQUEST, "이미 다른 고객이 예약 진행 중인 좌석이 존재합니다."),
+	BAD_REQUEST_TICKET_SOLD(BAD_REQUEST, "이미 환불 진행 중 입니다."),
+	NOT_REFUNDABLE_TIME(BAD_REQUEST, "환불이 가능한 시간이 지났습니다."),
+	NOT_REFUNDABLE_SEAT(BAD_REQUEST, "환불할 수 있는 좌석이 아닙니다."),
+	EMPTY_TICKET_ID(BAD_REQUEST, "티켓 정보가 존재하지 않습니다."),
 
 	/* 403 FORBIDDEN : 접근 권한 제한 */
 	VALID_USER_ID(FORBIDDEN, "해당 정보에 접근 권한이 존재하지 않습니다."),
@@ -26,6 +36,7 @@ public enum ErrorCode {
 	USER_NOT_FOUND(NOT_FOUND, "해당 유저 정보를 찾을 수 없습니다."),
 	EMAIL_NOT_FOUND(NOT_FOUND, "해당 이메일을 찾을 수 없습니다."),
 	MOVIE_NOT_FOUND(NOT_FOUND, "해당 제목의 영화를 찾을 수 없습니다."),
+	MOVIE_TIME_NOT_FOUND(NOT_FOUND, "해당 영화 시간표 정보를 찾을 수 없습니다"),
 	REFRESH_TOKEN_NOT_FOUND(NOT_FOUND, "리프레쉬 토큰을 찾을 수 없습니다."),
 	PAYMENT_ID_NOT_FOUND(NOT_FOUND, "결제정보를 찾을 수 없습니다."),
 	THEATER_NOT_FOUND(NOT_FOUND, "상영관 정보를 찾을 수 없습니다."),
@@ -58,15 +69,20 @@ public enum ErrorCode {
 		throw new TicketingException(UNABLE_CHANGE_GRADE);
 	}
 
+	public static TicketingException throwBadRequestPaymentComplete() {
+		throw new TicketingException(BAD_REQUEST_PAYMENT_COMPLETE);
+	}
+
+	public static TicketingException throwBadRequestPaymentReady() {
+		throw new TicketingException(BAD_REQUEST_PAYMENT_READY);
+	}
+
 	/* 403 FORBIDDEN : 접근 권한 제한 */
 	public static TicketingException throwValidUserId() {
 		throw new TicketingException(VALID_USER_ID);
 	}
 
 	/* 404 NOT_FOUND : Resource 를 찾을 수 없음 */
-	public static TicketingException throwUserNotFound() {
-		throw new TicketingException(USER_NOT_FOUND);
-	}
 
 	public static TicketingException throwEmailNotFound() {
 		throw new TicketingException(EMAIL_NOT_FOUND);
@@ -113,4 +129,5 @@ public enum ErrorCode {
 		throw new TicketingException(DELETED_MOVIE);
 	}
 
+
 }

server/src/main/java/com/ticketing/server/global/exception/GlobalExceptionHandler.java

@@ -9,7 +9,6 @@ import static org.springframework.http.HttpStatus.UNAUTHORIZED;
 import static org.springframework.http.HttpStatus.UNSUPPORTED_MEDIA_TYPE;
 
 import java.util.ArrayList;
-import java.util.Iterator;
 import java.util.List;
 import java.util.Objects;
 import java.util.Set;
@@ -22,9 +21,9 @@ import org.springframework.http.HttpMethod;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.access.AccessDeniedException;
+import org.springframework.security.authentication.BadCredentialsException;
 import org.springframework.security.core.AuthenticationException;
 import org.springframework.validation.BindException;
-import org.springframework.validation.FieldError;
 import org.springframework.validation.ObjectError;
 import org.springframework.web.HttpMediaTypeNotSupportedException;
 import org.springframework.web.HttpRequestMethodNotSupportedException;
@@ -213,6 +212,17 @@ public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {
 		return ResponseEntity.status(response.getStatus()).headers(new HttpHeaders()).body(response);
 	}
 
+	/**
+	 * 이메일이 존재하지 않을 경우
+	 */
+	@ExceptionHandler(value = BadCredentialsException.class)
+	protected ResponseEntity<ErrorResponse> handleBadCredentialsException(BadCredentialsException ex) {
+		log.error("BadCredentialsException :: ", ex);
+
+		ErrorResponse response = new ErrorResponse(UNAUTHORIZED, ex.getLocalizedMessage(), "아이디 혹은 패스워드가 일치하지 않습니다.");
+		return ResponseEntity.status(response.getStatus()).headers(new HttpHeaders()).body(response);
+	}
+
 	/**
 	 * 인증 정보가 없을 때
 	 */

server/src/main/java/com/ticketing/server/global/redis/PaymentCache.java

@@ -0,0 +1,47 @@
+package com.ticketing.server.global.redis;
+
+import java.util.List;
+import javax.persistence.Column;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import org.springframework.data.redis.core.RedisHash;
+import org.springframework.data.redis.core.index.Indexed;
+
+@Getter
+@RedisHash("Payment")
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class PaymentCache {
+
+	@Id
+	@GeneratedValue
+	@Column(name = "payment_ready_id")
+	private Long id;
+
+	@Indexed
+	private String email;
+
+	private String movieTitle;
+
+	private String tid;
+
+	private List<Long> ticketIds;
+
+	private Long userAlternateId;
+
+	private Long paymentNumber;
+
+	private Integer totalAmount;
+
+	public PaymentCache(String email, String movieTitle, String tid, List<Long> ticketIds, Long userAlternateId, Long paymentNumber, Integer totalAmount) {
+		this.email = email;
+		this.movieTitle = movieTitle;
+		this.tid = tid;
+		this.ticketIds = ticketIds;
+		this.userAlternateId = userAlternateId;
+		this.paymentNumber = paymentNumber;
+		this.totalAmount = totalAmount;
+	}
+}

server/src/main/java/com/ticketing/server/global/redis/PaymentCacheRepository.java

@@ -0,0 +1,10 @@
+package com.ticketing.server.global.redis;
+
+import java.util.Optional;
+import org.springframework.data.repository.CrudRepository;
+
+public interface PaymentCacheRepository extends CrudRepository<PaymentCache, Long> {
+
+	Optional<PaymentCache> findByEmail(String email);
+
+}

server/src/main/java/com/ticketing/server/global/redis/RedisConfig.java

@@ -3,10 +3,14 @@ package com.ticketing.server.global.redis;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.data.redis.cache.RedisCacheConfiguration;
+import org.springframework.data.redis.cache.RedisCacheManager;
 import org.springframework.data.redis.connection.RedisConnectionFactory;
 import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
 import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.data.redis.repository.configuration.EnableRedisRepositories;
+import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
+import org.springframework.data.redis.serializer.RedisSerializationContext;
 import org.springframework.data.redis.serializer.StringRedisSerializer;
 import org.springframework.orm.jpa.JpaTransactionManager;
 import org.springframework.transaction.PlatformTransactionManager;
@@ -41,4 +45,21 @@ public class RedisConfig {
 		return new JpaTransactionManager();
 	}
 
+	@Bean
+	public RedisCacheManager redisCacheManager() {
+		RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig()
+			.serializeKeysWith(
+				RedisSerializationContext.SerializationPair.fromSerializer(
+					new StringRedisSerializer()))
+			.serializeValuesWith(
+				RedisSerializationContext.SerializationPair.fromSerializer(
+					new GenericJackson2JsonRedisSerializer()));
+
+		return RedisCacheManager.RedisCacheManagerBuilder
+			.fromConnectionFactory(redisConnectionFactory())
+			.cacheDefaults(redisCacheConfiguration)
+			.build();
+
+	}
+
 }

server/src/main/java/com/ticketing/server/global/redis/RefreshToken.java

@@ -28,8 +28,9 @@ public class RefreshToken {
 		this.token = token;
 	}
 
-	public void changeToken(String token) {
+	public RefreshToken changeToken(String token) {
 		this.token = token;
+		return this;
 	}
 
 }

server/src/main/java/com/ticketing/server/global/security/WebSecurityConfig.java

@@ -53,8 +53,7 @@ public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
 			.antMatchers(HttpMethod.POST, "/api/auth/token").permitAll()
 			.antMatchers(HttpMethod.POST, "/api/auth/refresh").permitAll()
 			.antMatchers(HttpMethod.POST, "/api/users").permitAll()
-			.antMatchers(HttpMethod.GET,"/api/movies").permitAll()
-			.antMatchers("/api/movieTimes/**").permitAll()
+			.antMatchers(HttpMethod.GET, "/api/movies").permitAll()
 			.antMatchers("/l7check").permitAll()
 			.antMatchers("/actuator/**").permitAll()
 			.antMatchers("/api/v3/", "/swagger-ui/**", "/swagger/", "/swagger-resources/**", "/v3/api-docs").permitAll()

server/src/main/java/com/ticketing/server/global/security/jwt/JwtProvider.java

@@ -27,6 +27,7 @@ public class JwtProvider {
 
 	private static final String AUTHORITIES_KEY = "auth";
 	private static final String AUTHORITIES_DELIMITER = ",";
+	private static final String ROLE = "ROLE_";
 
 	private final Key key;
 	private final String prefix;
@@ -89,7 +90,7 @@ public class JwtProvider {
 	}
 
 	private String makeRoleName(String role) {
-		return "ROLE_" + role.toUpperCase();
+		return role.contains(ROLE) ? role.toUpperCase() : ROLE + role.toUpperCase();
 	}
 
 	public Authentication getAuthentication(String token) {

server/src/main/java/com/ticketing/server/global/validator/constraints/NotEmptyCollection.java

@@ -0,0 +1,22 @@
+package com.ticketing.server.global.validator.constraints;
+
+import com.ticketing.server.global.validator.constraintvalidators.NotEmptyCollectionValidator;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import javax.validation.Constraint;
+import javax.validation.Payload;
+
+@Target({ElementType.FIELD, ElementType.PARAMETER})
+@Retention(RetentionPolicy.RUNTIME)
+@Constraint(validatedBy = NotEmptyCollectionValidator.class)
+public @interface NotEmptyCollection {
+
+	String message() default "목록이 존재하지 않습니다.";
+
+	Class<?>[] groups() default {};
+
+	Class<? extends Payload>[] payload() default {};
+
+}

server/src/main/java/com/ticketing/server/global/validator/constraintvalidators/NotEmptyCollectionValidator.java

@@ -0,0 +1,20 @@
+package com.ticketing.server.global.validator.constraintvalidators;
+
+import com.ticketing.server.global.validator.constraints.NotEmptyCollection;
+import java.util.Collection;
+import java.util.Objects;
+import javax.validation.ConstraintValidator;
+import javax.validation.ConstraintValidatorContext;
+
+public class NotEmptyCollectionValidator implements ConstraintValidator<NotEmptyCollection, Collection<Long>> {
+
+	@Override
+	public boolean isValid(Collection<Long> objects, ConstraintValidatorContext context) {
+		if (objects.isEmpty()) {
+			return false;
+		}
+
+		return objects.stream().allMatch(Objects::nonNull);
+	}
+
+}

server/src/main/java/com/ticketing/server/movie/aop/TicketLockAspect.java

@@ -0,0 +1,64 @@
+package com.ticketing.server.movie.aop;
+
+import static com.ticketing.server.movie.domain.TicketLock.LOCK_VALUE;
+
+import com.ticketing.server.global.exception.ErrorCode;
+import com.ticketing.server.global.exception.TicketingException;
+import com.ticketing.server.movie.service.dto.TicketIdsDTO;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import lombok.RequiredArgsConstructor;
+import org.aspectj.lang.ProceedingJoinPoint;
+import org.aspectj.lang.annotation.Around;
+import org.aspectj.lang.annotation.Aspect;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.stereotype.Component;
+
+@Component
+@Aspect
+@RequiredArgsConstructor
+public class TicketLockAspect {
+
+	private final RedisTemplate<String, Object> redisTemplate;
+
+	@Around("execution(* com.ticketing.server.movie.service.TicketLockService.*(..))")
+	public Object ticketLock(ProceedingJoinPoint joinPoint) throws Throwable {
+		List<String> ticketLockIds = getTicketLockIds(joinPoint);
+
+		try {
+			if (!isEveryTicketIdLock(ticketLockIds)) {
+				throw new TicketingException(ErrorCode.BAD_REQUEST_TICKET_SOLD);
+			}
+
+			return joinPoint.proceed();
+		} finally {
+			ticketIdsUnlock(ticketLockIds);
+		}
+	}
+
+	protected boolean isEveryTicketIdLock(List<String> ids) {
+		for (String id : ids) {
+			if (Boolean.FALSE.equals(redisTemplate.opsForValue().setIfAbsent(id, LOCK_VALUE.getValue(), 5, TimeUnit.MINUTES))) {
+				return Boolean.FALSE;
+			}
+		}
+		return Boolean.TRUE;
+	}
+
+	protected Long ticketIdsUnlock(List<String> ids) {
+		return redisTemplate.delete(ids);
+	}
+
+	private List<String> getTicketLockIds(ProceedingJoinPoint joinPoint) {
+		for (Object arg : joinPoint.getArgs()) {
+			if (arg instanceof TicketIdsDTO) {
+				TicketIdsDTO ids = (TicketIdsDTO) arg;
+				return ids.makeTicketLockIds();
+			}
+		}
+
+		throw new TicketingException(ErrorCode.EMPTY_TICKET_ID);
+	}
+
+
+}

server/src/main/java/com/ticketing/server/movie/application/MovieController.java

@@ -8,11 +8,12 @@ import com.ticketing.server.movie.application.response.MovieDeleteResponse;
 import com.ticketing.server.movie.application.response.MovieListResponse;
 import com.ticketing.server.movie.application.response.MovieInfoResponse;
 import com.ticketing.server.movie.service.dto.DeletedMovieDTO;
-import com.ticketing.server.movie.service.dto.MovieListDTO;
+import com.ticketing.server.movie.service.dto.MovieDTO;
 import com.ticketing.server.movie.service.dto.RegisteredMovieDTO;
 import com.ticketing.server.movie.service.interfaces.MovieService;
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
+import java.util.List;
 import javax.validation.Valid;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
@@ -51,11 +52,11 @@ public class MovieController {
 	@GetMapping()
 	@ApiOperation(value = "영화 목록 조회")
 	public ResponseEntity<MovieListResponse> getMovies() {
-		MovieListDTO movieListDto = movieService.getMovies();
+		List<MovieDTO> movieDtos = movieService.getMovies();
 
 		return ResponseEntity.status(HttpStatus.OK)
 			.body(
-				movieListDto.toResponse()
+				new MovieListResponse(movieDtos)
 			);
 	}
 

server/src/main/java/com/ticketing/server/movie/application/MovieTimeController.java

@@ -5,13 +5,14 @@ import static com.ticketing.server.user.domain.UserGrade.ROLES.STAFF;
 import com.ticketing.server.movie.application.request.MovieTimeRegisterRequest;
 import com.ticketing.server.movie.application.response.MovieTimeInfoResponse;
 import com.ticketing.server.movie.application.response.MovieTimeListResponse;
-import com.ticketing.server.movie.service.dto.MovieTimeListDTO;
+import com.ticketing.server.movie.service.dto.MovieTimeDTO;
 import com.ticketing.server.movie.service.dto.RegisteredMovieTimeDTO;
 import com.ticketing.server.movie.service.interfaces.MovieTimeService;
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
 import io.swagger.annotations.ApiParam;
 import java.time.LocalDate;
+import java.util.List;
 import javax.validation.Valid;
 import javax.validation.constraints.NotNull;
 import lombok.RequiredArgsConstructor;
@@ -58,11 +59,11 @@ public class MovieTimeController {
 	public ResponseEntity<MovieTimeListResponse> getMovieTimes(
 		@ApiParam(value = "영화 ID", required = true) @RequestParam @NotNull Long movieId,
 		@ApiParam(value = "상영 날짜", required = true) @RequestParam @DateTimeFormat(pattern = "yyyy-MM-dd") LocalDate runningDate) {
-		MovieTimeListDTO movieTimeListDto = movieTimeService.getMovieTimes(movieId, runningDate);
+		List<MovieTimeDTO> movieTimeDtos = movieTimeService.getMovieTimes(movieId, runningDate);
 
 		return ResponseEntity.status(HttpStatus.OK)
 			.body(
-				movieTimeListDto.toResponse()
+				new MovieTimeListResponse(movieTimeDtos)
 			);
 	}
 

server/src/main/java/com/ticketing/server/movie/application/TicketController.java

@@ -1,16 +1,24 @@
 package com.ticketing.server.movie.application;
 
+import static com.ticketing.server.user.domain.UserGrade.ROLES.USER;
+
 import com.ticketing.server.movie.application.response.TicketDetailsResponse;
-import com.ticketing.server.movie.service.dto.TicketDetailsDTO;
+import com.ticketing.server.movie.application.response.TicketListResponse;
+import com.ticketing.server.movie.service.dto.TicketDTO;
 import com.ticketing.server.movie.service.interfaces.TicketService;
+import com.ticketing.server.payment.service.dto.TicketDetailDTO;
+import io.swagger.annotations.ApiParam;
+import java.util.List;
 import javax.validation.constraints.NotNull;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
+import org.springframework.security.access.annotation.Secured;
 import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
 @RestController
@@ -21,10 +29,28 @@ public class TicketController {
 
 	private final TicketService ticketService;
 
-	@GetMapping("payments/{paymentId}")
-	public ResponseEntity<TicketDetailsResponse> findTicketsByPaymentId(@PathVariable("paymentId") @NotNull Long paymentId) {
-		TicketDetailsDTO tickets = ticketService.findTicketsByPaymentId(paymentId);
-		return ResponseEntity.status(HttpStatus.OK).body(tickets.toResponse());
+	@GetMapping
+	@Secured(USER)
+	public ResponseEntity<TicketListResponse> getTickets(
+		@ApiParam(value = "영화 시간표 ID", required = true) @RequestParam @NotNull Long movieTimeId) {
+		List<TicketDTO> tickets = ticketService.getTickets(movieTimeId);
+
+		return ResponseEntity.status(HttpStatus.OK)
+			.body(
+				new TicketListResponse(tickets)
+			);
+	}
+
+	@GetMapping("/payments/{paymentId}")
+	@Secured(USER)
+	public ResponseEntity<TicketDetailsResponse> findTicketsByPaymentId(
+		@PathVariable("paymentId") @NotNull Long paymentId) {
+		List<TicketDetailDTO> tickets = ticketService.findTicketsByPaymentId(paymentId);
+
+		return ResponseEntity.status(HttpStatus.OK)
+			.body(
+				new TicketDetailsResponse(tickets)
+			);
 	}
 
 }

server/src/main/java/com/ticketing/server/movie/application/request/TicketCancelRequest.java

@@ -0,0 +1,13 @@
+package com.ticketing.server.movie.application.request;
+
+import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class TicketCancelRequest {
+
+	private final List<Long> ticketIds;
+
+}

server/src/main/java/com/ticketing/server/movie/application/request/TicketReservationRequest.java

@@ -0,0 +1,15 @@
+package com.ticketing.server.movie.application.request;
+
+import com.ticketing.server.global.validator.constraints.NotEmptyCollection;
+import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class TicketReservationRequest {
+
+	@NotEmptyCollection
+	private List<Long> ticketIds;
+
+}

server/src/main/java/com/ticketing/server/movie/application/request/TicketSoldRequest.java

@@ -0,0 +1,19 @@
+package com.ticketing.server.movie.application.request;
+
+import com.ticketing.server.global.validator.constraints.NotEmptyCollection;
+import java.util.List;
+import javax.validation.constraints.NotNull;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class TicketSoldRequest {
+
+	@NotNull
+	private Long paymentId;
+
+	@NotEmptyCollection
+	private List<Long> ticketIds;
+
+}

server/src/main/java/com/ticketing/server/movie/application/response/MovieListResponse.java

@@ -10,7 +10,7 @@ import lombok.Getter;
 @AllArgsConstructor
 public class MovieListResponse {
 
-    @ApiModelProperty(value = "영화 제목")
+    @ApiModelProperty(value = "영화 목록")
     private List<MovieDTO> movieDtos;
 
 }

server/src/main/java/com/ticketing/server/movie/application/response/MovieTimeListResponse.java

@@ -11,7 +11,7 @@ import lombok.Getter;
 @AllArgsConstructor
 public class MovieTimeListResponse {
 
-    @ApiModelProperty(value = "영화 시간표 정보")
+    @ApiModelProperty(value = "영화 시간표 목록")
     private List<MovieTimeDTO> movieTimeDtos;
 
 }

server/src/main/java/com/ticketing/server/movie/application/response/TicketCancelResponse.java

@@ -0,0 +1,13 @@
+package com.ticketing.server.movie.application.response;
+
+import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class TicketCancelResponse {
+
+	private final List<Long> ticketIds;
+
+}

server/src/main/java/com/ticketing/server/movie/application/response/TicketListResponse.java

@@ -0,0 +1,16 @@
+package com.ticketing.server.movie.application.response;
+
+import com.ticketing.server.movie.service.dto.TicketDTO;
+import io.swagger.annotations.ApiModelProperty;
+import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class TicketListResponse {
+
+	@ApiModelProperty(value = "티켓 목록")
+	private List<TicketDTO> ticketDtos;
+
+}

server/src/main/java/com/ticketing/server/movie/application/response/TicketReservationResponse.java

@@ -0,0 +1,25 @@
+package com.ticketing.server.movie.application.response;
+
+import com.ticketing.server.movie.service.dto.TicketReservationDTO;
+import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class TicketReservationResponse {
+
+	private final String movieTitle;
+	private final List<TicketReservationDTO> tickets;
+
+	public int getTicketQuantity() {
+		return tickets.size();
+	}
+
+	public int getTotalPrice() {
+		return tickets.stream()
+			.mapToInt(TicketReservationDTO::getTicketPrice)
+			.sum();
+	}
+
+}

server/src/main/java/com/ticketing/server/movie/application/response/TicketSoldResponse.java

@@ -0,0 +1,15 @@
+package com.ticketing.server.movie.application.response;
+
+import com.ticketing.server.movie.service.dto.TicketSoldDTO;
+import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class TicketSoldResponse {
+
+	private final Long paymentId;
+	private final List<TicketSoldDTO> soldDtoList;
+
+}

server/src/main/java/com/ticketing/server/movie/domain/Ticket.java

@@ -1,8 +1,15 @@
 package com.ticketing.server.movie.domain;
 
+import static com.ticketing.server.global.exception.ErrorCode.BAD_REQUEST_PAYMENT_CANCEL;
+import static com.ticketing.server.global.exception.ErrorCode.DUPLICATE_PAYMENT;
+import static com.ticketing.server.global.exception.ErrorCode.NOT_REFUNDABLE_SEAT;
+import static com.ticketing.server.global.exception.ErrorCode.NOT_REFUNDABLE_TIME;
+
 import com.ticketing.server.global.dto.repository.AbstractEntity;
 import com.ticketing.server.global.exception.ErrorCode;
+import com.ticketing.server.global.exception.TicketingException;
 import java.time.LocalDateTime;
+import java.time.temporal.ChronoUnit;
 import javax.persistence.Entity;
 import javax.persistence.EnumType;
 import javax.persistence.Enumerated;
@@ -26,7 +33,7 @@ public class Ticket extends AbstractEntity {
 
 	@NotNull
 	@ManyToOne(fetch = FetchType.LAZY)
-	@JoinColumn(name = "movie_times_id", referencedColumnName = "id", updatable = false)
+	@JoinColumn(name = "movie_time_id", referencedColumnName = "id", updatable = false)
 	private MovieTime movieTime;
 
 	private Long paymentId;
@@ -53,6 +60,58 @@ public class Ticket extends AbstractEntity {
 		this.status = TicketStatus.SALE;
 	}
 
+	public Ticket makeReservation() {
+		if (!TicketStatus.SALE.equals(status)) {
+			throw new TicketingException(DUPLICATE_PAYMENT);
+		}
+
+		status = TicketStatus.RESERVATION;
+		return this;
+	}
+
+	public Ticket makeSold(Long paymentId) {
+		if (TicketStatus.SOLD.equals(status)) {
+			throw new TicketingException(DUPLICATE_PAYMENT);
+		}
+
+		status = TicketStatus.SOLD;
+		this.paymentId = paymentId;
+		return this;
+	}
+
+	public Ticket cancel() {
+		if (!TicketStatus.RESERVATION.equals(status)) {
+			throw new TicketingException(BAD_REQUEST_PAYMENT_CANCEL);
+		}
+
+		status = TicketStatus.SALE;
+		paymentId = null;
+		return this;
+	}
+
+	public Ticket refund(LocalDateTime dateTime) {
+		long seconds = ChronoUnit.SECONDS.between(dateTime, getStartAt());
+		if (600L > seconds) {
+			throw new TicketingException(NOT_REFUNDABLE_TIME);
+		}
+
+		return refund();
+	}
+
+	public Ticket refund() {
+		if (!TicketStatus.SOLD.equals(status)) {
+			throw new TicketingException(NOT_REFUNDABLE_SEAT);
+		}
+
+		status = TicketStatus.SALE;
+		paymentId = null;
+		return this;
+	}
+
+	public Long getMovieTimeId() {
+		return movieTime.getId();
+	}
+
 	public Integer getColumn() {
 		return this.seat.getSeatColumn();
 	}
@@ -85,5 +144,4 @@ public class Ticket extends AbstractEntity {
 		this.paymentId = id;
 	}
 
-
 }

server/src/main/java/com/ticketing/server/movie/domain/TicketLock.java

@@ -0,0 +1,15 @@
+package com.ticketing.server.movie.domain;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@Getter
+@RequiredArgsConstructor
+public enum TicketLock {
+
+	LOCK_KEY("TicketLock"),
+	LOCK_VALUE("lock");
+
+	private final String value;
+
+}

server/src/main/java/com/ticketing/server/movie/domain/TicketStatus.java

@@ -2,15 +2,16 @@ package com.ticketing.server.movie.domain;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
+import lombok.RequiredArgsConstructor;
 
 @Getter
-@AllArgsConstructor
+@RequiredArgsConstructor
 public enum TicketStatus {
 
 	SALE("판매가능"),
-	SCHEDULED("환불"),
+	RESERVATION("예약"),
 	SOLD("판매완료");
 
-	private String name;
+	private final String name;
 
 }

server/src/main/java/com/ticketing/server/movie/domain/repository/MovieRepository.java

@@ -1,7 +1,6 @@
 package com.ticketing.server.movie.domain.repository;
 
 import com.ticketing.server.movie.domain.Movie;
-import java.time.LocalDateTime;
 import java.util.List;
 import java.util.Optional;
 import org.springframework.data.jpa.repository.JpaRepository;
@@ -17,8 +16,8 @@ public interface MovieRepository extends JpaRepository<Movie, Long> {
 
 	@Query(value = "SELECT m "
 		+ "FROM Movie m "
-		+ "WHERE title = :title "
-		+ "AND deleted_at IS NULL")
+		+ "WHERE m.title = :title "
+		+ "AND m.deletedAt IS NULL")
 	Optional<Movie> findValidMovieWithTitle(String title);
 
     @Query(value = "SELECT * "

server/src/main/java/com/ticketing/server/movie/domain/repository/TicketRepository.java

@@ -1,5 +1,6 @@
 package com.ticketing.server.movie.domain.repository;
 
+import com.ticketing.server.movie.domain.MovieTime;
 import com.ticketing.server.movie.domain.Ticket;
 import java.util.List;
 import org.springframework.data.jpa.repository.JpaRepository;
@@ -11,8 +12,16 @@ import org.springframework.stereotype.Repository;
 public interface TicketRepository extends JpaRepository<Ticket, Long> {
 
 	@Query(
-		value =
-			"SELECT t "
+		value = "SELECT t "
+			+ "FROM Ticket t "
+			+ "JOIN FETCH t.seat s "
+			+ "WHERE t.movieTime = :movieTime "
+			+ "AND t.deletedAt IS NULL"
+	)
+	List<Ticket> findValidTickets(MovieTime movieTime);
+
+	@Query(
+		value = "SELECT t "
 			+ "FROM Ticket t "
 			+ "JOIN FETCH t.movieTime mt "
 			+ "JOIN FETCH t.seat s "
@@ -21,4 +30,14 @@ public interface TicketRepository extends JpaRepository<Ticket, Long> {
 	)
 	List<Ticket> findTicketFetchJoinByPaymentId(@Param("paymentId") Long paymentId);
 
+	@Query(
+		value = "SELECT t "
+				+ "FROM Ticket t "
+				+ "JOIN FETCH t.movieTime mt "
+				+ "JOIN FETCH t.seat s "
+				+ "JOIN FETCH s.theater th "
+				+ "WHERE t.id IN (:ticketIds) "
+	)
+	List<Ticket> findTicketFetchJoinByTicketIds(@Param("ticketIds") List<Long> ticketIds);
+
 }

server/src/main/java/com/ticketing/server/movie/service/MovieServiceImpl.java

@@ -5,7 +5,6 @@ import com.ticketing.server.movie.domain.Movie;
 import com.ticketing.server.movie.domain.repository.MovieRepository;
 import com.ticketing.server.movie.service.dto.DeletedMovieDTO;
 import com.ticketing.server.movie.service.dto.MovieDTO;
-import com.ticketing.server.movie.service.dto.MovieListDTO;
 import com.ticketing.server.movie.service.dto.RegisteredMovieDTO;
 import com.ticketing.server.movie.service.interfaces.MovieService;
 import java.util.List;
@@ -39,14 +38,12 @@ public class MovieServiceImpl implements MovieService {
 	}
 
 	@Override
-	public MovieListDTO getMovies() {
+	public List<MovieDTO> getMovies() {
 		List<Movie> movies = movieRepository.findValidMovies();
 
-		List<MovieDTO> movieDtos = movies.stream()
+		return movies.stream()
 			.map(movie -> movie.toMovieDTO())
 			.collect(Collectors.toList());
-
-		return new MovieListDTO(movieDtos);
 	}
 
 	@Override

server/src/main/java/com/ticketing/server/movie/service/MovieTimeServiceImpl.java

@@ -8,9 +8,7 @@ import com.ticketing.server.movie.domain.repository.MovieRepository;
 import com.ticketing.server.movie.domain.repository.MovieTimeRepository;
 import com.ticketing.server.movie.domain.repository.TheaterRepository;
 import com.ticketing.server.movie.service.dto.MovieTimeDTO;
-import com.ticketing.server.movie.service.dto.MovieTimeListDTO;
 import com.ticketing.server.movie.service.dto.MovieTimeRegisterDTO;
-import com.ticketing.server.movie.service.dto.RegisteredMovieDTO;
 import com.ticketing.server.movie.service.dto.RegisteredMovieTimeDTO;
 import com.ticketing.server.movie.service.interfaces.MovieTimeService;
 import java.time.LocalDate;
@@ -38,12 +36,13 @@ public class MovieTimeServiceImpl implements MovieTimeService {
 	public RegisteredMovieTimeDTO registerMovieTime(@Valid MovieTimeRegisterDTO movieTimeRegisterDto) {
 		Movie movie = findMovieById(movieTimeRegisterDto.getMovieId());
 		Theater theater = findTheaterByNumber(movieTimeRegisterDto.getTheaterNumber());
+
 		int round = movieTimeRegisterDto.getRound();
 
 		Optional<MovieTime> movieTime =
 			movieTimeRepository.findByMovieAndTheaterAndRoundAndDeletedAtNull(movie, theater, round);
 
-		if(movieTime.isEmpty()) {
+		if (movieTime.isEmpty()) {
 			MovieTime newMovieTime = movieTimeRepository.save(
 				new MovieTime(movie, theater, round, movieTimeRegisterDto.getStartAt())
 			);
@@ -55,7 +54,7 @@ public class MovieTimeServiceImpl implements MovieTimeService {
 	}
 
 	@Override
-	public MovieTimeListDTO getMovieTimes(Long movieId, LocalDate runningDate) {
+	public List<MovieTimeDTO> getMovieTimes(Long movieId, LocalDate runningDate) {
 		Movie movie = findMovieById(movieId);
 
 		LocalDateTime startOfDay = runningDate.atStartOfDay().plusHours(6);
@@ -63,11 +62,9 @@ public class MovieTimeServiceImpl implements MovieTimeService {
 
 		List<MovieTime> movieTimes = movieTimeRepository.findValidMovieTimes(movie, startOfDay, endOfDay);
 
-		List<MovieTimeDTO> movieTimeDtos = movieTimes.stream()
+		return movieTimes.stream()
 			.map(movieTime -> movieTime.toMovieTimeDTO())
 			.collect(Collectors.toList());
-
-		return new MovieTimeListDTO(movieTimeDtos);
 	}
 
 	@Override

server/src/main/java/com/ticketing/server/movie/service/TicketLockService.java

@@ -0,0 +1,77 @@
+package com.ticketing.server.movie.service;
+
+import static com.ticketing.server.global.exception.ErrorCode.BAD_REQUEST_MOVIE_TIME;
+import static com.ticketing.server.global.exception.ErrorCode.INVALID_TICKET_ID;
+
+import com.ticketing.server.global.exception.TicketingException;
+import com.ticketing.server.movie.domain.Ticket;
+import com.ticketing.server.movie.domain.repository.TicketRepository;
+import com.ticketing.server.movie.service.dto.TicketIdsDTO;
+import com.ticketing.server.movie.service.dto.TicketReservationDTO;
+import com.ticketing.server.movie.service.dto.TicketSoldDTO;
+import com.ticketing.server.movie.service.dto.TicketsReservationDTO;
+import com.ticketing.server.movie.service.dto.TicketsSoldDTO;
+import java.util.List;
+import java.util.stream.Collectors;
+import javax.validation.Valid;
+import javax.validation.constraints.NotNull;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.validation.annotation.Validated;
+
+@Service
+@RequiredArgsConstructor
+@Validated
+public class TicketLockService {
+
+	private final TicketRepository ticketRepository;
+
+	public TicketsReservationDTO ticketReservation(@Valid TicketIdsDTO ticketIdsDto) {
+		List<Ticket> tickets = getTicketsByInTicketIds(ticketIdsDto.getTicketIds());
+
+		Long firstMovieTimeId = firstMovieTimeId(tickets);
+		List<TicketReservationDTO> reservationDtoList = tickets.stream()
+			.map(Ticket::makeReservation)
+			.filter(ticket -> firstMovieTimeId.equals(ticket.getMovieTimeId()))
+			.map(TicketReservationDTO::new)
+			.collect(Collectors.toList());
+
+		if (tickets.size() != reservationDtoList.size()) {
+			throw new TicketingException(BAD_REQUEST_MOVIE_TIME);
+		}
+
+		return new TicketsReservationDTO(firstMovieTitle(tickets), reservationDtoList);
+	}
+
+	public TicketsSoldDTO ticketSold(@NotNull Long paymentId, @Valid TicketIdsDTO ticketIdsDto) {
+		List<Ticket> tickets = getTicketsByInTicketIds(ticketIdsDto.getTicketIds());
+
+		List<TicketSoldDTO> soldDtoList = tickets.stream()
+			.map(ticket -> ticket.makeSold(paymentId))
+			.map(TicketSoldDTO::new)
+			.collect(Collectors.toList());
+
+		return new TicketsSoldDTO(paymentId, soldDtoList);
+	}
+
+	private List<Ticket> getTicketsByInTicketIds(List<Long> ticketIds) {
+		List<Ticket> tickets = ticketRepository.findTicketFetchJoinByTicketIds(ticketIds);
+
+		if (tickets.size() != ticketIds.size()) {
+			throw new TicketingException(INVALID_TICKET_ID);
+		}
+
+		return tickets;
+	}
+
+	private Long firstMovieTimeId(List<Ticket> tickets) {
+		Ticket ticket = tickets.get(0);
+		return ticket.getMovieTimeId();
+	}
+
+	private String firstMovieTitle(List<Ticket> tickets) {
+		Ticket ticket = tickets.get(0);
+		return ticket.getMovieTitle();
+	}
+
+}

server/src/main/java/com/ticketing/server/movie/service/TicketServiceImpl.java

@@ -1,11 +1,25 @@
 package com.ticketing.server.movie.service;
 
-import com.ticketing.server.global.exception.ErrorCode;
+import static com.ticketing.server.global.exception.ErrorCode.INVALID_TICKET_ID;
+import static com.ticketing.server.global.exception.ErrorCode.MOVIE_TIME_NOT_FOUND;
+import static com.ticketing.server.global.exception.ErrorCode.PAYMENT_ID_NOT_FOUND;
+
+import com.ticketing.server.global.exception.TicketingException;
+import com.ticketing.server.global.validator.constraints.NotEmptyCollection;
+import com.ticketing.server.movie.domain.MovieTime;
+import com.ticketing.server.movie.domain.Ticket;
+import com.ticketing.server.movie.domain.repository.MovieTimeRepository;
 import com.ticketing.server.movie.domain.repository.TicketRepository;
-import com.ticketing.server.movie.service.dto.TicketDetailsDTO;
+import com.ticketing.server.movie.service.dto.TicketDTO;
+import com.ticketing.server.movie.service.dto.TicketIdsDTO;
+import com.ticketing.server.movie.service.dto.TicketRefundDTO;
+import com.ticketing.server.movie.service.dto.TicketsCancelDTO;
+import com.ticketing.server.movie.service.dto.TicketsReservationDTO;
+import com.ticketing.server.movie.service.dto.TicketsSoldDTO;
 import com.ticketing.server.movie.service.interfaces.TicketService;
 import com.ticketing.server.payment.service.dto.TicketDetailDTO;
 import java.util.List;
+import java.util.function.UnaryOperator;
 import java.util.stream.Collectors;
 import javax.validation.constraints.NotNull;
 import lombok.RequiredArgsConstructor;
@@ -22,19 +36,74 @@ import org.springframework.validation.annotation.Validated;
 public class TicketServiceImpl implements TicketService {
 
 	private final TicketRepository ticketRepository;
+	private final MovieTimeRepository movieTimeRepository;
+	private final TicketLockService ticketLockService;
 
 	@Override
-	public TicketDetailsDTO findTicketsByPaymentId(@NotNull Long paymentId) {
+	public List<TicketDTO> getTickets(@NotNull Long movieTimeId) {
+		MovieTime movieTime = movieTimeRepository.findById(movieTimeId)
+			.orElseThrow(() -> new TicketingException(MOVIE_TIME_NOT_FOUND));
+
+		return ticketRepository.findValidTickets(movieTime)
+			.stream()
+			.map(TicketDTO::new)
+			.collect(Collectors.toList());
+	}
+
+	@Override
+	public List<TicketDetailDTO> findTicketsByPaymentId(@NotNull Long paymentId) {
 		List<TicketDetailDTO> ticketDetails = ticketRepository.findTicketFetchJoinByPaymentId(paymentId)
 			.stream()
 			.map(TicketDetailDTO::new)
 			.collect(Collectors.toList());
 
 		if (ticketDetails.isEmpty()) {
-			throw ErrorCode.throwPaymentIdNotFound();
+			throw new TicketingException(PAYMENT_ID_NOT_FOUND);
 		}
 
-		return new TicketDetailsDTO(ticketDetails);
+		return ticketDetails;
+	}
+
+	@Override
+	@Transactional
+	public TicketsReservationDTO ticketReservation(@NotEmptyCollection List<Long> ticketIds) {
+		return ticketLockService.ticketReservation(new TicketIdsDTO(ticketIds));
+	}
+
+	@Override
+	@Transactional
+	public TicketsSoldDTO ticketSold(@NotNull Long paymentId, @NotEmptyCollection List<Long> ticketIds) {
+		return ticketLockService.ticketSold(paymentId, new TicketIdsDTO(ticketIds));
+	}
+
+	@Override
+	@Transactional
+	public TicketsCancelDTO ticketCancel(@NotEmptyCollection List<Long> ticketIds) {
+		List<Ticket> tickets = getTicketsByInTicketIds(ticketIds);
+		tickets.forEach(Ticket::cancel);
+
+		return new TicketsCancelDTO(tickets);
+	}
+
+	@Override
+	@Transactional
+	public List<TicketRefundDTO> ticketsRefund(@NotNull Long paymentId, UnaryOperator<Ticket> refund) {
+		List<Ticket> tickets = ticketRepository.findTicketFetchJoinByPaymentId(paymentId);
+
+		return tickets.stream()
+			.map(refund)
+			.map(TicketRefundDTO::new)
+			.collect(Collectors.toList());
+	}
+
+	private List<Ticket> getTicketsByInTicketIds(List<Long> ticketIds) {
+		List<Ticket> tickets = ticketRepository.findTicketFetchJoinByTicketIds(ticketIds);
+
+		if (tickets.size() != ticketIds.size()) {
+			throw new TicketingException(INVALID_TICKET_ID);
+		}
+
+		return tickets;
 	}
 
 }

server/src/main/java/com/ticketing/server/movie/service/dto/MovieListDTO.java

@@ -1,18 +0,0 @@
-package com.ticketing.server.movie.service.dto;
-
-import com.ticketing.server.movie.application.response.MovieListResponse;
-import java.util.List;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor
-public class MovieListDTO {
-
-	private final List<MovieDTO> movieDtos;
-
-	public MovieListResponse toResponse() {
-		return new MovieListResponse(movieDtos);
-	}
-
-}

server/src/main/java/com/ticketing/server/movie/service/dto/MovieTimeListDTO.java

@@ -1,18 +0,0 @@
-package com.ticketing.server.movie.service.dto;
-
-import com.ticketing.server.movie.application.response.MovieTimeListResponse;
-import java.util.List;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor
-public class MovieTimeListDTO {
-
-	private final List<MovieTimeDTO> movieTimeDtos;
-
-	public MovieTimeListResponse toResponse() {
-		return new MovieTimeListResponse(movieTimeDtos);
-	}
-
-}

server/src/main/java/com/ticketing/server/movie/service/dto/TicketDTO.java

@@ -0,0 +1,33 @@
+package com.ticketing.server.movie.service.dto;
+
+import com.ticketing.server.movie.domain.Ticket;
+import com.ticketing.server.movie.domain.TicketStatus;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+public class TicketDTO {
+
+	private Long ticketId;
+
+	private Integer ticketPrice;
+
+	private Integer seatRow;
+
+	private Integer seatColumn;
+
+	private TicketStatus status;
+
+	public TicketDTO(Ticket ticket) {
+		this(
+			ticket.getId(),
+			ticket.getTicketPrice(),
+			ticket.getRow(),
+			ticket.getColumn(),
+			ticket.getStatus()
+		);
+	}
+
+}

server/src/main/java/com/ticketing/server/movie/service/dto/TicketDetailsDTO.java

@@ -1,18 +0,0 @@
-package com.ticketing.server.movie.service.dto;
-
-import com.ticketing.server.movie.application.response.TicketDetailsResponse;
-import com.ticketing.server.payment.service.dto.TicketDetailDTO;
-import java.util.List;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor
-public class TicketDetailsDTO {
-
-	private final List<TicketDetailDTO> ticketDetails;
-
-	public TicketDetailsResponse toResponse() {
-		return new TicketDetailsResponse(ticketDetails);
-	}
-}

server/src/main/java/com/ticketing/server/movie/service/dto/TicketIdsDTO.java

@@ -0,0 +1,24 @@
+package com.ticketing.server.movie.service.dto;
+
+import static com.ticketing.server.movie.domain.TicketLock.LOCK_KEY;
+
+import com.ticketing.server.global.validator.constraints.NotEmptyCollection;
+import java.util.List;
+import java.util.stream.Collectors;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class TicketIdsDTO {
+
+	@NotEmptyCollection
+	private List<Long> ticketIds;
+
+	public List<String> makeTicketLockIds() {
+		return ticketIds.stream()
+			.map(id -> LOCK_KEY.getValue() + ":" + id)
+			.collect(Collectors.toList());
+	}
+
+}

server/src/main/java/com/ticketing/server/movie/service/dto/TicketRefundDTO.java

@@ -0,0 +1,20 @@
+package com.ticketing.server.movie.service.dto;
+
+import com.ticketing.server.movie.domain.Ticket;
+import com.ticketing.server.movie.domain.TicketStatus;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+public class TicketRefundDTO {
+
+	private Long ticketId;
+	private TicketStatus ticketStatus;
+
+	public TicketRefundDTO(Ticket ticket) {
+		this(ticket.getId(), ticket.getStatus());
+	}
+
+}

server/src/main/java/com/ticketing/server/movie/service/dto/TicketReservationDTO.java

@@ -0,0 +1,19 @@
+package com.ticketing.server.movie.service.dto;
+
+import com.ticketing.server.movie.domain.Ticket;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+public class TicketReservationDTO {
+
+	private final Long ticketId;
+	private final Integer ticketPrice;
+
+	public TicketReservationDTO(Ticket ticket) {
+		this(ticket.getId(), ticket.getTicketPrice());
+	}
+
+}

server/src/main/java/com/ticketing/server/movie/service/dto/TicketSoldDTO.java

@@ -0,0 +1,19 @@
+package com.ticketing.server.movie.service.dto;
+
+import com.ticketing.server.movie.domain.Ticket;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+public class TicketSoldDTO {
+
+	private final Long ticketId;
+	private final Integer ticketPrice;
+
+	public TicketSoldDTO(Ticket ticket) {
+		this(ticket.getId(), ticket.getTicketPrice());
+	}
+
+}

server/src/main/java/com/ticketing/server/movie/service/dto/TicketsCancelDTO.java

@@ -0,0 +1,24 @@
+package com.ticketing.server.movie.service.dto;
+
+import com.ticketing.server.movie.application.response.TicketCancelResponse;
+import com.ticketing.server.movie.domain.Ticket;
+import java.util.List;
+import java.util.stream.Collectors;
+import lombok.Getter;
+
+@Getter
+public class TicketsCancelDTO {
+
+	private final List<Long> ticketIds;
+
+	public TicketsCancelDTO(List<Ticket> tickets) {
+		ticketIds = tickets.stream()
+			.map(Ticket::getId)
+			.collect(Collectors.toList());
+	}
+
+	public TicketCancelResponse toResponse() {
+		return new TicketCancelResponse(ticketIds);
+	}
+
+}

server/src/main/java/com/ticketing/server/movie/service/dto/TicketsRefundResponse.java

@@ -0,0 +1,21 @@
+package com.ticketing.server.movie.service.dto;
+
+import java.util.List;
+import java.util.stream.Collectors;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class TicketsRefundResponse {
+
+	private final List<TicketRefundDTO> tickets;
+
+	public List<Long> getTicketIds() {
+		return tickets.stream()
+			.mapToLong(TicketRefundDTO::getTicketId)
+			.boxed()
+			.collect(Collectors.toList());
+	}
+
+}

server/src/main/java/com/ticketing/server/movie/service/dto/TicketsReservationDTO.java

@@ -0,0 +1,19 @@
+package com.ticketing.server.movie.service.dto;
+
+import com.ticketing.server.movie.application.response.TicketReservationResponse;
+import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class TicketsReservationDTO {
+
+	private final String movieTitle;
+	private final List<TicketReservationDTO> ticketReservationDtoList;
+
+	public TicketReservationResponse toResponse() {
+		return new TicketReservationResponse(movieTitle, ticketReservationDtoList);
+	}
+
+}

server/src/main/java/com/ticketing/server/movie/service/dto/TicketsSoldDTO.java

@@ -0,0 +1,19 @@
+package com.ticketing.server.movie.service.dto;
+
+import com.ticketing.server.movie.application.response.TicketSoldResponse;
+import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class TicketsSoldDTO {
+
+	private final Long paymentId;
+	private final List<TicketSoldDTO> soldDtoList;
+
+	public TicketSoldResponse toResponse() {
+		return new TicketSoldResponse(paymentId, soldDtoList);
+	}
+
+}

server/src/main/java/com/ticketing/server/movie/service/interfaces/MovieService.java

@@ -1,14 +1,15 @@
 package com.ticketing.server.movie.service.interfaces;
 
 import com.ticketing.server.movie.service.dto.DeletedMovieDTO;
-import com.ticketing.server.movie.service.dto.MovieListDTO;
+import com.ticketing.server.movie.service.dto.MovieDTO;
 import com.ticketing.server.movie.service.dto.RegisteredMovieDTO;
+import java.util.List;
 
 public interface MovieService {
 
 	RegisteredMovieDTO registerMovie(String title, Long runningTime);
 
-	MovieListDTO getMovies();
+	List<MovieDTO> getMovies();
 
 	DeletedMovieDTO deleteMovie(Long id);
 }

server/src/main/java/com/ticketing/server/movie/service/interfaces/MovieTimeService.java

@@ -2,17 +2,18 @@ package com.ticketing.server.movie.service.interfaces;
 
 import com.ticketing.server.movie.domain.Movie;
 import com.ticketing.server.movie.domain.Theater;
-import com.ticketing.server.movie.service.dto.MovieTimeListDTO;
+import com.ticketing.server.movie.service.dto.MovieTimeDTO;
 import com.ticketing.server.movie.service.dto.MovieTimeRegisterDTO;
 import com.ticketing.server.movie.service.dto.RegisteredMovieTimeDTO;
 import java.time.LocalDate;
+import java.util.List;
 import javax.validation.Valid;
 
 public interface MovieTimeService {
 
 	RegisteredMovieTimeDTO registerMovieTime(@Valid MovieTimeRegisterDTO movieTimeRegisterDto);
 
-	MovieTimeListDTO getMovieTimes(Long movieId, LocalDate runningDate);
+	List<MovieTimeDTO> getMovieTimes(Long movieId, LocalDate runningDate);
 
 	Movie findMovieById(Long movieId);
 

server/src/main/java/com/ticketing/server/movie/service/interfaces/TicketService.java

@@ -1,10 +1,31 @@
 package com.ticketing.server.movie.service.interfaces;
 
-import com.ticketing.server.movie.service.dto.TicketDetailsDTO;
+import com.ticketing.server.global.validator.constraints.NotEmptyCollection;
+import com.ticketing.server.movie.domain.Ticket;
+import com.ticketing.server.movie.service.dto.TicketDTO;
+import com.ticketing.server.movie.service.dto.TicketIdsDTO;
+import com.ticketing.server.movie.service.dto.TicketRefundDTO;
+import com.ticketing.server.movie.service.dto.TicketsCancelDTO;
+import com.ticketing.server.movie.service.dto.TicketsReservationDTO;
+import com.ticketing.server.movie.service.dto.TicketsSoldDTO;
+import com.ticketing.server.payment.service.dto.TicketDetailDTO;
+import java.util.List;
+import java.util.function.UnaryOperator;
+import javax.validation.Valid;
 import javax.validation.constraints.NotNull;
 
 public interface TicketService {
 
-	TicketDetailsDTO findTicketsByPaymentId(@NotNull Long paymentId);
+	List<TicketDTO> getTickets(@NotNull Long movieTimeId);
+
+	List<TicketDetailDTO> findTicketsByPaymentId(@NotNull Long paymentId);
+
+	TicketsReservationDTO ticketReservation(@NotEmptyCollection List<Long> ticketIds);
+
+	TicketsSoldDTO ticketSold(@NotNull Long paymentId, @NotEmptyCollection List<Long> ticketIds);
+
+	TicketsCancelDTO ticketCancel(@NotEmptyCollection List<Long> ticketIds);
+
+	List<TicketRefundDTO> ticketsRefund(@NotNull Long paymentId, UnaryOperator<Ticket> refund);
 
 }

server/src/main/java/com/ticketing/server/movie/setup/MovieSetupService.java

@@ -1,5 +1,6 @@
 package com.ticketing.server.movie.setup;
 
+import com.ticketing.server.global.redis.PaymentCache;
 import com.ticketing.server.movie.domain.Movie;
 import com.ticketing.server.movie.domain.MovieTime;
 import com.ticketing.server.movie.domain.Seat;
@@ -13,7 +14,6 @@ import com.ticketing.server.payment.domain.Payment;
 import com.ticketing.server.payment.domain.PaymentStatus;
 import com.ticketing.server.payment.domain.PaymentType;
 import com.ticketing.server.payment.domain.repository.PaymentRepository;
-import com.ticketing.server.payment.service.dto.CreatePaymentDTO;
 import com.ticketing.server.user.domain.User;
 import com.ticketing.server.user.domain.UserGrade;
 import com.ticketing.server.user.domain.repository.UserRepository;
@@ -46,7 +46,7 @@ MovieSetupService {
 		initTheater();
 		initMovieTime();
 		initTicket();
-		initPayment();
+//		initPayment();
 	}
 
 	private void initMovie() {
@@ -119,8 +119,17 @@ MovieSetupService {
 		List<Ticket> tickets = ticketRepository.findAll();
 		Ticket ticket = tickets.get(0);
 		String title = ticket.getMovieTime().getMovie().getTitle();
-		CreatePaymentDTO createPaymentDto = new CreatePaymentDTO(user.getAlternateId(), title, PaymentType.KAKAO_PAY, PaymentStatus.COMPLETED, "2022-0710-4142", 30_000);
-		Payment payment = createPaymentDto.toEntity();
+		PaymentCache paymentCache = new PaymentCache(
+			user.getEmail(),
+			title,
+			"T2d03c9130bf237a9700",
+			List.of(1L, 2L),
+			user.getAlternateId(),
+			124124231513245L,
+			30_000
+		);
+
+		Payment payment = new Payment(paymentCache, PaymentType.KAKAO_PAY, PaymentStatus.SOLD, 30_000);
 
 		paymentRepository.save(payment);
 

server/src/main/java/com/ticketing/server/payment/api/CoreFeignConfiguration.java

@@ -0,0 +1,20 @@
+package com.ticketing.server.payment.api;
+
+import feign.Logger;
+import feign.Logger.Level;
+import feign.codec.Encoder;
+import org.springframework.context.annotation.Bean;
+
+public class CoreFeignConfiguration {
+
+	@Bean
+	Logger.Level feignLoggerLevel() {
+		return Level.FULL;
+	}
+
+	@Bean
+	Encoder formEncoder() {
+		return new feign.form.FormEncoder();
+	}
+
+}

server/src/main/java/com/ticketing/server/payment/api/KakaoPayClient.java

@@ -0,0 +1,32 @@
+package com.ticketing.server.payment.api;
+
+import static org.springframework.http.MediaType.APPLICATION_FORM_URLENCODED_VALUE;
+
+import com.ticketing.server.payment.api.dto.requset.KakaoPayApproveRequest;
+import com.ticketing.server.payment.api.dto.requset.KakaoPayCancelRequest;
+import com.ticketing.server.payment.api.dto.requset.KakaoPayReadyRequest;
+import com.ticketing.server.payment.api.dto.response.KakaoPayApproveResponse;
+import com.ticketing.server.payment.api.dto.response.KakaoPayCancelResponse;
+import com.ticketing.server.payment.api.dto.response.KakaoPayReadyResponse;
+import feign.Headers;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestHeader;
+
+@FeignClient(name = "kakaoPay", url = "https://kapi.kakao.com/v1", path = "/payment",
+	configuration = CoreFeignConfiguration.class)
+public interface KakaoPayClient {
+
+	@PostMapping(value = "/ready", consumes = APPLICATION_FORM_URLENCODED_VALUE)
+	@Headers("Content-Type: application/x-www-form-urlencoded;charset=utf-8")
+	KakaoPayReadyResponse ready(@RequestHeader(value = "Authorization") String authorization, KakaoPayReadyRequest request);
+
+	@PostMapping(value = "/approve", consumes = APPLICATION_FORM_URLENCODED_VALUE)
+	@Headers("Content-Type: application/x-www-form-urlencoded;charset=utf-8")
+	KakaoPayApproveResponse approve(@RequestHeader(value = "Authorization") String authorization, KakaoPayApproveRequest request);
+
+	@PostMapping(value = "/cancel", consumes = APPLICATION_FORM_URLENCODED_VALUE)
+	@Headers("Content-Type: application/x-www-form-urlencoded;charset=utf-8")
+	KakaoPayCancelResponse cancel(@RequestHeader(value = "Authorization") String authorization, KakaoPayCancelRequest request);
+
+}

server/src/main/java/com/ticketing/server/payment/api/KakaoPayProperties.java

@@ -0,0 +1,40 @@
+package com.ticketing.server.payment.api;
+
+import com.ticketing.server.global.factory.YamlPropertySourceFactory;
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.context.properties.ConstructorBinding;
+import org.springframework.context.annotation.PropertySource;
+
+@Getter
+@RequiredArgsConstructor
+@ConstructorBinding
+@ConfigurationProperties(value = "api.kakao.pay")
+@PropertySource(value = "classpath:application.yml", factory = YamlPropertySourceFactory.class)
+public class KakaoPayProperties {
+
+	private final String url;
+	private final String approval;
+	private final String cancel;
+	private final String fail;
+	private final String prefix;
+	private final String key;
+
+	public String getApprovalUrl() {
+		return url + approval;
+	}
+
+	public String getCancelUrl() {
+		return url + cancel;
+	}
+
+	public String getFailUrl() {
+		return url + fail;
+	}
+
+	public String getAuthorization() {
+		return prefix + " " + key;
+	}
+
+}

server/src/main/java/com/ticketing/server/payment/api/MovieClient.java

@@ -1,10 +1,28 @@
 package com.ticketing.server.payment.api;
 
+import com.ticketing.server.movie.application.request.TicketCancelRequest;
+import com.ticketing.server.movie.application.request.TicketReservationRequest;
+import com.ticketing.server.movie.application.request.TicketSoldRequest;
+import com.ticketing.server.movie.application.response.TicketCancelResponse;
 import com.ticketing.server.movie.application.response.TicketDetailsResponse;
+import com.ticketing.server.movie.application.response.TicketReservationResponse;
+import com.ticketing.server.movie.application.response.TicketSoldResponse;
+import com.ticketing.server.movie.service.dto.TicketsRefundResponse;
+import com.ticketing.server.payment.api.impl.TicketsRefundRequest;
+import java.time.LocalDateTime;
 import javax.validation.constraints.NotNull;
 
 public interface MovieClient {
 
 	TicketDetailsResponse getTicketsByPaymentId(@NotNull Long paymentId);
 
+	TicketReservationResponse ticketReservation(@NotNull TicketReservationRequest request);
+
+	TicketSoldResponse ticketSold(@NotNull TicketSoldRequest request);
+
+	TicketCancelResponse ticketCancel(@NotNull TicketCancelRequest request);
+
+	TicketsRefundResponse ticketRefundByDateTime(TicketsRefundRequest request, LocalDateTime dateTime);
+
+	TicketsRefundResponse ticketRefund(TicketsRefundRequest request);
 }

server/src/main/java/com/ticketing/server/payment/api/dto/SnakeCaseStrategy.java

@@ -0,0 +1,12 @@
+package com.ticketing.server.payment.api.dto;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonInclude.Include;
+import com.fasterxml.jackson.databind.PropertyNamingStrategies;
+import com.fasterxml.jackson.databind.annotation.JsonNaming;
+
+@JsonNaming(value = PropertyNamingStrategies.SnakeCaseStrategy.class)
+@JsonInclude(Include.NON_NULL)
+public class SnakeCaseStrategy {
+
+}

server/src/main/java/com/ticketing/server/payment/api/dto/requset/KakaoPayApproveRequest.java

@@ -0,0 +1,50 @@
+package com.ticketing.server.payment.api.dto.requset;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonInclude.Include;
+import javax.validation.constraints.NotEmpty;
+import lombok.Getter;
+
+@Getter
+@JsonInclude(Include.NON_NULL)
+public class KakaoPayApproveRequest {
+
+	// 가맹점 코드 현재는 테스트 값
+	@NotEmpty
+	private String cid = "TC0ONETIME";
+
+	@feign.form.FormProperty("cid_secret")
+	private String cidSecret;
+
+	// 결제 고유 번호 ready res 에 포함
+	@NotEmpty
+	private String tid;
+
+	// 주문번호 - 결제 예매번호?
+	@NotEmpty
+	@feign.form.FormProperty("partner_order_id")
+	private String partnerOrderId;
+
+	// 가맹점 회원 id - user 대체 ID
+	@NotEmpty
+	@feign.form.FormProperty("partner_user_id")
+	private String partnerUserId;
+
+	// 결제승인 요청 인증 토큰
+	@NotEmpty
+	@feign.form.FormProperty("pg_token")
+	private String pgToken;
+
+	private String payload;
+
+	@feign.form.FormProperty("total_amount")
+	private Integer totalAmount;
+
+	public KakaoPayApproveRequest(String tid, String partnerOrderId, String partnerUserId, String pgToken) {
+		this.tid = tid;
+		this.partnerOrderId = partnerOrderId;
+		this.partnerUserId = partnerUserId;
+		this.pgToken = pgToken;
+	}
+
+}

server/src/main/java/com/ticketing/server/payment/api/dto/requset/KakaoPayCancelRequest.java

@@ -0,0 +1,47 @@
+package com.ticketing.server.payment.api.dto.requset;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonInclude.Include;
+import javax.validation.constraints.NotEmpty;
+import lombok.Getter;
+
+@Getter
+@JsonInclude(Include.NON_NULL)
+public class KakaoPayCancelRequest {
+
+	@NotEmpty
+	private String cid = "TC0ONETIME";
+
+	@feign.form.FormProperty("cid_secret")
+	private String cidSecret;
+
+	@NotEmpty
+	private String tid;
+
+	@NotEmpty
+	@feign.form.FormProperty("cancel_amount")
+	private Integer cancelAmount;
+
+	@NotEmpty
+	@feign.form.FormProperty("cancel_tax_free_amount")
+	private Integer cancelTaxFreeAmount;
+
+	@feign.form.FormProperty("cancel_vat_amount")
+	private Integer cancelVatAmount;
+
+	@feign.form.FormProperty("cancel_available_amount")
+	private Integer cancelAvailableAmount;
+
+	private String payload;
+
+	public KakaoPayCancelRequest(String tid, Integer cancelAmount) {
+		this(tid, cancelAmount, 0);
+	}
+
+	public KakaoPayCancelRequest(String tid, Integer cancelAmount, int cancelTaxFreeAmount) {
+		this.tid = tid;
+		this.cancelAmount = cancelAmount;
+		this.cancelTaxFreeAmount = cancelTaxFreeAmount;
+	}
+
+}

server/src/main/java/com/ticketing/server/payment/api/dto/requset/KakaoPayReadyRequest.java

@@ -0,0 +1,92 @@
+package com.ticketing.server.payment.api.dto.requset;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonInclude.Include;
+import javax.validation.constraints.NotEmpty;
+import javax.validation.constraints.NotNull;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@NoArgsConstructor
+@AllArgsConstructor
+@JsonInclude(Include.NON_NULL)
+public class KakaoPayReadyRequest {
+
+	// 가맹점 코드
+	@NotEmpty
+	private String cid = "TC0ONETIME";
+
+	// 가맹점 코드 인증키
+	@feign.form.FormProperty("cid_secret")
+	private String cidSecret;
+
+	// 가맹점 주문번호 - 결제 예매번호?
+	@NotEmpty
+	@feign.form.FormProperty("partner_order_id")
+	private String partnerOrderId;
+
+	// 가맹점 회원 id - user 대체 ID
+	@NotEmpty
+	@feign.form.FormProperty("partner_user_id")
+	private String partnerUserId;
+
+	// 상품명 - 영화제목
+	@NotEmpty
+	@feign.form.FormProperty("item_name")
+	private String itemName;
+
+	// 상품코드
+	@feign.form.FormProperty("item_code")
+	private String itemCode;
+
+	// 상품수량 - 티켓 수량
+	@NotNull
+	private Integer quantity;
+
+	// 상품 총액 - 티켓 금액 합계
+	@NotNull
+	@feign.form.FormProperty("total_amount")
+	private Integer totalAmount;
+
+	// 상품 비과세 - 0원으로 일단 일괄처리
+	@NotNull
+	@feign.form.FormProperty("tax_free_amount")
+	private Integer taxFreeAmount = 0;
+
+	// 상품 부가세 금액
+	@feign.form.FormProperty("vat_amount")
+	private Integer vatAmount;
+
+	// 컵 보증금
+	@feign.form.FormProperty("green_deposit")
+	private Integer greenDeposit;
+
+	// 결제 성공 시 redirect URL - json 반환 용 URL ?
+	@NotNull
+	@feign.form.FormProperty("approval_url")
+	private String approvalUrl;
+
+	// 결제 취소 시 redirect URL
+	@NotNull
+	@feign.form.FormProperty("cancel_url")
+	private String cancelUrl;
+
+	// 결제 실패 시 redirect URL
+	@NotNull
+	@feign.form.FormProperty("fail_url")
+	private String failUrl;
+
+	public KakaoPayReadyRequest(String partnerOrderId, String partnerUserId, String itemName, Integer quantity,
+		Integer totalAmount, String approvalUrl, String cancelUrl, String failUrl) {
+		this.partnerOrderId = partnerOrderId;
+		this.partnerUserId = partnerUserId;
+		this.itemName = itemName;
+		this.quantity = quantity;
+		this.totalAmount = totalAmount;
+		this.approvalUrl = approvalUrl;
+		this.cancelUrl = cancelUrl;
+		this.failUrl = failUrl;
+	}
+}

server/src/main/java/com/ticketing/server/payment/api/dto/response/Amount.java

@@ -0,0 +1,27 @@
+package com.ticketing.server.payment.api.dto.response;
+
+import com.ticketing.server.payment.api.dto.SnakeCaseStrategy;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+
+@Getter
+@NoArgsConstructor
+@AllArgsConstructor
+@ToString
+public class Amount extends SnakeCaseStrategy {
+
+	private Integer total;
+
+	private Integer taxFree;
+
+	private Integer vat;
+
+	private Integer point;
+
+	private Integer discount;
+
+	private Integer greenDeposit;
+
+}

server/src/main/java/com/ticketing/server/payment/api/dto/response/ApprovedCancelAmount.java

@@ -0,0 +1,16 @@
+package com.ticketing.server.payment.api.dto.response;
+
+import com.ticketing.server.payment.api.dto.SnakeCaseStrategy;
+import lombok.Getter;
+
+@Getter
+public class ApprovedCancelAmount extends SnakeCaseStrategy {
+
+	private Integer total;
+	private Integer taxFree;
+	private Integer vat;
+	private Integer point;
+	private Integer discount;
+	private Integer greenDeposit;
+
+}

server/src/main/java/com/ticketing/server/payment/api/dto/response/CancelAvailableAmount.java

@@ -0,0 +1,16 @@
+package com.ticketing.server.payment.api.dto.response;
+
+import com.ticketing.server.payment.api.dto.SnakeCaseStrategy;
+import lombok.Getter;
+
+@Getter
+public class CancelAvailableAmount extends SnakeCaseStrategy {
+
+	private Integer total;
+	private Integer taxFree;
+	private Integer vat;
+	private Integer point;
+	private Integer discount;
+	private Integer greenDeposit;
+
+}

server/src/main/java/com/ticketing/server/payment/api/dto/response/CanceledAmount.java

@@ -0,0 +1,16 @@
+package com.ticketing.server.payment.api.dto.response;
+
+import com.ticketing.server.payment.api.dto.SnakeCaseStrategy;
+import lombok.Getter;
+
+@Getter
+public class CanceledAmount extends SnakeCaseStrategy {
+
+	private Integer total;
+	private Integer taxFree;
+	private Integer vat;
+	private Integer point;
+	private Integer discount;
+	private Integer greenDeposit;
+
+}

server/src/main/java/com/ticketing/server/payment/api/dto/response/CardInfo.java

@@ -0,0 +1,45 @@
+package com.ticketing.server.payment.api.dto.response;
+
+import com.ticketing.server.payment.api.dto.SnakeCaseStrategy;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+
+@Getter
+@NoArgsConstructor
+@AllArgsConstructor
+@ToString
+public class CardInfo extends SnakeCaseStrategy {
+
+	private String purchaseCorp;
+
+	private String purchaseCorpCode;
+
+	private String issuerCorp;
+
+	private String issuerCorpCode;
+
+	private String kakaopayPurchaseCorp;
+
+	private String kakaopayPurchaseCorpCode;
+
+	private String kakaopayIssuerCorp;
+
+	private String kakaopayIssuerCorpCode;
+
+	private String bin;
+
+	private String cardType;
+
+	private String installMonth;
+
+	private String approvedId;
+
+	private String cardMid;
+
+	private String interestFreeInstall;
+
+	private String cardItemCode;
+
+}

server/src/main/java/com/ticketing/server/payment/api/dto/response/KakaoPayApproveResponse.java

@@ -0,0 +1,51 @@
+package com.ticketing.server.payment.api.dto.response;
+
+
+import com.ticketing.server.payment.api.dto.SnakeCaseStrategy;
+import java.time.LocalDateTime;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+
+@Getter
+@NoArgsConstructor
+@AllArgsConstructor
+@ToString
+public class KakaoPayApproveResponse extends SnakeCaseStrategy {
+
+	private String aid;
+
+	private String tid;
+
+	private String cid;
+
+	private String sid;
+
+	private String partnerOrderId;
+
+	private String partnerUserId;
+
+	private String paymentMethodType;
+
+	private Amount amount;
+
+	private CardInfo cardInfo;
+
+	private String itemName;
+
+	private String itemCode;
+
+	private Integer quantity;
+
+	private LocalDateTime createdAt;
+
+	private LocalDateTime approvedAt;
+
+	private String payload;
+
+	public Integer getTotalAmount() {
+		return amount.getTotal();
+	}
+
+}

server/src/main/java/com/ticketing/server/payment/api/dto/response/KakaoPayCancelResponse.java

@@ -0,0 +1,50 @@
+package com.ticketing.server.payment.api.dto.response;
+
+import com.ticketing.server.payment.api.dto.SnakeCaseStrategy;
+import java.time.LocalDateTime;
+import lombok.Getter;
+
+@Getter
+public class KakaoPayCancelResponse extends SnakeCaseStrategy {
+
+	private String aid;
+
+	private String tid;
+
+	private String cid;
+
+	private String status;
+
+	private String partnerOrderId;
+
+	private String partnerUserId;
+
+	private String paymentMethodType;
+
+	private Amount amount;
+
+	private ApprovedCancelAmount approvedCancelAmount;
+
+	private CanceledAmount canceledAmount;
+
+	private CancelAvailableAmount cancelAvailableAmount;
+
+	private String itemName;
+
+	private String itemCode;
+
+	private Integer quantity;
+
+	private LocalDateTime createdAt;
+
+	private LocalDateTime approvedAt;
+
+	private LocalDateTime canceledAt;
+
+	private String payload;
+
+	public Integer getTotalAmount() {
+		return amount.getTotal();
+	}
+
+}

server/src/main/java/com/ticketing/server/payment/api/dto/response/KakaoPayReadyResponse.java

@@ -0,0 +1,37 @@
+package com.ticketing.server.payment.api.dto.response;
+
+import com.ticketing.server.payment.api.dto.SnakeCaseStrategy;
+import java.time.LocalDateTime;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+
+@Getter
+@NoArgsConstructor
+@AllArgsConstructor
+@ToString
+public class KakaoPayReadyResponse extends SnakeCaseStrategy {
+
+	// 결제 고유 번호
+	private String tid;
+
+	// 요청 클라이언트가 모바일 앱일 경우
+	private String nextRedirectAppUrl;
+
+	// 요청 클라이언트가 모바일 웹일 경우
+	private String nextRedirectMobileUrl;
+
+	// 요청 클라이언트가 PC 웹일 경우
+	private String nextRedirectPcUrl;
+
+	// 카카오페이 결제 화면으로 이동하는 Android 앱 스킴
+	private String androidAppScheme;
+
+	// 카카오페이 결제 화면으로 이동하는 IOS 앱 스킴
+	private String iosAppScheme;
+
+	// 결제 준비 요청 시간
+	private LocalDateTime createAt;
+
+}

server/src/main/java/com/ticketing/server/payment/api/impl/MovieClientImpl.java

@@ -1,9 +1,23 @@
 package com.ticketing.server.payment.api.impl;
 
+import com.ticketing.server.movie.application.request.TicketCancelRequest;
+import com.ticketing.server.movie.application.request.TicketReservationRequest;
+import com.ticketing.server.movie.application.request.TicketSoldRequest;
+import com.ticketing.server.movie.application.response.TicketCancelResponse;
 import com.ticketing.server.movie.application.response.TicketDetailsResponse;
-import com.ticketing.server.movie.service.dto.TicketDetailsDTO;
+import com.ticketing.server.movie.application.response.TicketReservationResponse;
+import com.ticketing.server.movie.application.response.TicketSoldResponse;
+import com.ticketing.server.movie.domain.Ticket;
+import com.ticketing.server.movie.service.dto.TicketRefundDTO;
+import com.ticketing.server.movie.service.dto.TicketsCancelDTO;
+import com.ticketing.server.movie.service.dto.TicketsRefundResponse;
+import com.ticketing.server.movie.service.dto.TicketsReservationDTO;
+import com.ticketing.server.movie.service.dto.TicketsSoldDTO;
 import com.ticketing.server.movie.service.interfaces.TicketService;
 import com.ticketing.server.payment.api.MovieClient;
+import com.ticketing.server.payment.service.dto.TicketDetailDTO;
+import java.time.LocalDateTime;
+import java.util.List;
 import javax.validation.constraints.NotNull;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
@@ -18,8 +32,38 @@ public class MovieClientImpl implements MovieClient {
 
 	@Override
 	public TicketDetailsResponse getTicketsByPaymentId(@NotNull Long paymentId) {
-		TicketDetailsDTO ticketDetails = ticketService.findTicketsByPaymentId(paymentId);
-		return ticketDetails.toResponse();
+		List<TicketDetailDTO> ticketDetails = ticketService.findTicketsByPaymentId(paymentId);
+		return new TicketDetailsResponse(ticketDetails);
+	}
+
+	@Override
+	public TicketReservationResponse ticketReservation(@NotNull TicketReservationRequest request) {
+		TicketsReservationDTO ticketReservationsDto = ticketService.ticketReservation(request.getTicketIds());
+		return ticketReservationsDto.toResponse();
+	}
+
+	@Override
+	public TicketSoldResponse ticketSold(@NotNull TicketSoldRequest request) {
+		TicketsSoldDTO ticketsSoldDto = ticketService.ticketSold(request.getPaymentId(), request.getTicketIds());
+		return ticketsSoldDto.toResponse();
+	}
+
+	@Override
+	public TicketCancelResponse ticketCancel(@NotNull TicketCancelRequest request) {
+		TicketsCancelDTO ticketsCancelDto = ticketService.ticketCancel(request.getTicketIds());
+		return ticketsCancelDto.toResponse();
+	}
+
+	@Override
+	public TicketsRefundResponse ticketRefundByDateTime(TicketsRefundRequest request, LocalDateTime dateTime) {
+		List<TicketRefundDTO> ticketRefundDTOS = ticketService.ticketsRefund(request.getPaymentId(), ticket -> ticket.refund(dateTime));
+		return new TicketsRefundResponse(ticketRefundDTOS);
+	}
+
+	@Override
+	public TicketsRefundResponse ticketRefund(TicketsRefundRequest request) {
+		List<TicketRefundDTO> ticketRefundDtos = ticketService.ticketsRefund(request.getPaymentId(), Ticket::refund);
+		return new TicketsRefundResponse(ticketRefundDtos);
 	}
 
 }

server/src/main/java/com/ticketing/server/payment/api/impl/TicketsRefundRequest.java

@@ -0,0 +1,12 @@
+package com.ticketing.server.payment.api.impl;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class TicketsRefundRequest {
+
+	private final Long paymentId;
+
+}

server/src/main/java/com/ticketing/server/payment/application/PaymentController.java

@@ -1,20 +1,39 @@
 package com.ticketing.server.payment.application;
 
+import static com.ticketing.server.user.domain.UserGrade.ROLES.STAFF;
+import static com.ticketing.server.user.domain.UserGrade.ROLES.USER;
+
+import com.ticketing.server.payment.application.request.PaymentReadyRequest;
+import com.ticketing.server.payment.application.request.PaymentRefundRequest;
+import com.ticketing.server.payment.application.response.PaymentCancelResponse;
+import com.ticketing.server.payment.application.response.PaymentCompleteResponse;
 import com.ticketing.server.payment.application.response.PaymentDetailResponse;
+import com.ticketing.server.payment.application.response.PaymentRefundResponse;
 import com.ticketing.server.payment.application.response.SimplePaymentsResponse;
+import com.ticketing.server.payment.service.AdminKakaoPayRefundService;
+import com.ticketing.server.payment.service.MyKakaoPayRefundService;
+import com.ticketing.server.payment.service.dto.PaymentCancelDTO;
+import com.ticketing.server.payment.service.dto.PaymentCompleteDTO;
 import com.ticketing.server.payment.service.dto.PaymentDetailDTO;
+import com.ticketing.server.payment.service.dto.PaymentReadyDTO;
+import com.ticketing.server.payment.service.dto.PaymentRefundDTO;
 import com.ticketing.server.payment.service.dto.SimplePaymentsDTO;
 import com.ticketing.server.payment.service.interfaces.PaymentApisService;
 import com.ticketing.server.payment.service.interfaces.PaymentService;
-import com.ticketing.server.user.domain.UserGrade;
+import javax.validation.Valid;
 import javax.validation.constraints.NotNull;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.access.annotation.Secured;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.validation.annotation.Validated;
 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.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
 @RestController
@@ -25,9 +44,11 @@ public class PaymentController {
 
 	private final PaymentApisService paymentApisService;
 	private final PaymentService paymentService;
+	private final AdminKakaoPayRefundService adminKakaoPayRefundService;
+	private final MyKakaoPayRefundService myKakaoPayRefundService;
 
 	@GetMapping
-	@Secured(UserGrade.ROLES.USER)
+	@Secured(USER)
 	public ResponseEntity<SimplePaymentsResponse> simplePayments(@NotNull Long userAlternateId) {
 		SimplePaymentsDTO simplePayments = paymentService.findSimplePayments(userAlternateId);
 
@@ -36,7 +57,7 @@ public class PaymentController {
 	}
 
 	@GetMapping("/detail")
-	@Secured(UserGrade.ROLES.USER)
+	@Secured(USER)
 	public ResponseEntity<PaymentDetailResponse> detail(@NotNull Long paymentId) {
 		PaymentDetailDTO paymentDetail = paymentApisService.findPaymentDetail(paymentId);
 
@@ -44,4 +65,51 @@ public class PaymentController {
 			.body(paymentDetail.toResponse());
 	}
 
+	@PostMapping("/ready")
+	@Secured(USER)
+	public ResponseEntity<PaymentReadyDTO> ready(@RequestBody @Valid PaymentReadyRequest request) {
+		PaymentReadyDTO paymentReadyDto = paymentApisService.ready(request.getTicketIds());
+
+		return ResponseEntity.status(HttpStatus.OK)
+			.body(paymentReadyDto);
+	}
+
+	@GetMapping("/complete")
+	@Secured(USER)
+	public ResponseEntity<PaymentCompleteResponse> complete(
+		@AuthenticationPrincipal UserDetails userRequest,
+		@RequestParam("pg_token") String pgToken) {
+		PaymentCompleteDTO paymentCompleteDto = paymentApisService.complete(userRequest.getUsername(), pgToken);
+
+		return ResponseEntity.status(HttpStatus.OK)
+			.body(paymentCompleteDto.toResponse());
+	}
+
+	@GetMapping("/cancel")
+	@Secured(USER)
+	public ResponseEntity<PaymentCancelResponse> cancel(@AuthenticationPrincipal UserDetails userRequest) {
+		PaymentCancelDTO paymentCancelDto = paymentApisService.cancel(userRequest.getUsername());
+
+		return ResponseEntity.status(HttpStatus.OK)
+			.body(paymentCancelDto.toResponse());
+	}
+
+	@PostMapping("/refund")
+	@Secured(USER)
+	public ResponseEntity<PaymentRefundResponse> refund(@RequestBody @Valid PaymentRefundRequest request) {
+		PaymentRefundDTO paymentRefundDto = myKakaoPayRefundService.refund(request.getPaymentId());
+
+		return ResponseEntity.status(HttpStatus.OK)
+			.body(paymentRefundDto.toResponse());
+	}
+
+	@PostMapping("/staff/refund")
+	@Secured(STAFF)
+	public ResponseEntity<PaymentRefundResponse> adminRefund(@RequestBody @Valid PaymentRefundRequest request) {
+		PaymentRefundDTO paymentRefundDto = adminKakaoPayRefundService.refund(request.getPaymentId());
+
+		return ResponseEntity.status(HttpStatus.OK)
+			.body(paymentRefundDto.toResponse());
+	}
+
 }

server/src/main/java/com/ticketing/server/payment/application/request/PaymentReadyRequest.java

@@ -0,0 +1,13 @@
+package com.ticketing.server.payment.application.request;
+
+import com.ticketing.server.global.validator.constraints.NotEmptyCollection;
+import java.util.List;
+import lombok.Getter;
+
+@Getter
+public class PaymentReadyRequest {
+
+	@NotEmptyCollection
+	private List<Long> ticketIds;
+
+}

server/src/main/java/com/ticketing/server/payment/application/request/PaymentRefundRequest.java

@@ -0,0 +1,12 @@
+package com.ticketing.server.payment.application.request;
+
+import javax.validation.constraints.NotNull;
+import lombok.Getter;
+
+@Getter
+public class PaymentRefundRequest {
+
+	@NotNull
+	private Long paymentId;
+
+}

server/src/main/java/com/ticketing/server/payment/application/response/PaymentCancelResponse.java

@@ -0,0 +1,16 @@
+package com.ticketing.server.payment.application.response;
+
+import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class PaymentCancelResponse {
+
+	private final String email;
+	private final String movieTitle;
+	private final String tid;
+	private final List<Long> ticketIds;
+
+}

server/src/main/java/com/ticketing/server/payment/application/response/PaymentCompleteResponse.java

@@ -0,0 +1,16 @@
+package com.ticketing.server.payment.application.response;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class PaymentCompleteResponse {
+
+	private final String email;
+	private final String tid;
+	private final String movieTitle;
+	private final Integer quantity;
+	private final Integer totalAmount;
+
+}

server/src/main/java/com/ticketing/server/payment/application/response/PaymentRefundResponse.java

@@ -0,0 +1,18 @@
+package com.ticketing.server.payment.application.response;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class PaymentRefundResponse {
+
+	private Long paymentId;
+	private List<Long> ticketIds;
+	private String movieTitle;
+	private Integer cancelAmount;
+	private LocalDateTime canceledAt;
+
+}

server/src/main/java/com/ticketing/server/payment/domain/Payment.java

@@ -1,6 +1,7 @@
 package com.ticketing.server.payment.domain;
 
 import com.ticketing.server.global.dto.repository.AbstractEntity;
+import com.ticketing.server.global.redis.PaymentCache;
 import javax.persistence.Column;
 import javax.persistence.Entity;
 import javax.persistence.EnumType;
@@ -24,6 +25,10 @@ public class Payment extends AbstractEntity {
 	@Column(name = "movie_title", nullable = false)
 	private String movieTitle;
 
+	@NotEmpty
+	@Column(name = "tid", nullable = false)
+	private String tid;
+
 	@NotNull
 	@Column(name = "type", nullable = false)
 	@Enumerated(value = EnumType.STRING)
@@ -45,9 +50,22 @@ public class Payment extends AbstractEntity {
 	@Column(name = "total_price", nullable = false)
 	private Integer totalPrice;
 
-	public Payment(Long userAlternateId, String movieTitle, PaymentType type, PaymentStatus status, String paymentNumber, Integer totalPrice) {
+	public Payment(PaymentCache paymentCache, PaymentType type, PaymentStatus status, Integer totalAmount) {
+		this(
+			paymentCache.getUserAlternateId(),
+			paymentCache.getMovieTitle(),
+			paymentCache.getTid(),
+			type,
+			status,
+			paymentCache.getPaymentNumber().toString(),
+			totalAmount
+		);
+	}
+
+	private Payment(Long userAlternateId, String movieTitle, String tid, PaymentType type, PaymentStatus status, String paymentNumber, Integer totalPrice) {
 		this.userAlternateId = userAlternateId;
 		this.movieTitle = movieTitle;
+		this.tid = tid;
 		this.type = type;
 		this.status = status;
 		this.paymentNumber = paymentNumber;
@@ -64,4 +82,7 @@ public class Payment extends AbstractEntity {
 		this.totalPrice = totalPrice;
 	}
 
+	public void refund() {
+		status = PaymentStatus.REFUNDED;
+	}
 }

server/src/main/java/com/ticketing/server/payment/domain/PaymentStatus.java

@@ -1,5 +1,15 @@
 package com.ticketing.server.payment.domain;
 
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@Getter
+@RequiredArgsConstructor
 public enum PaymentStatus {
-	COMPLETED, REFUNDED, FAILED
+
+	SOLD("판매"),
+	REFUNDED("환불");
+
+	private final String statusName;
+
 }

server/src/main/java/com/ticketing/server/payment/service/AdminKakaoPayRefundService.java

@@ -0,0 +1,40 @@
+package com.ticketing.server.payment.service;
+
+import com.ticketing.server.global.exception.ErrorCode;
+import com.ticketing.server.movie.service.dto.TicketsRefundResponse;
+import com.ticketing.server.payment.api.KakaoPayClient;
+import com.ticketing.server.payment.api.KakaoPayProperties;
+import com.ticketing.server.payment.api.MovieClient;
+import com.ticketing.server.payment.api.impl.TicketsRefundRequest;
+import com.ticketing.server.payment.domain.Payment;
+import com.ticketing.server.payment.domain.repository.PaymentRepository;
+import com.ticketing.server.payment.service.interfaces.AbstractKakaoPayRefund;
+import org.springframework.stereotype.Service;
+
+@Service
+public class AdminKakaoPayRefundService extends AbstractKakaoPayRefund {
+
+	private final PaymentRepository paymentRepository;
+	private final MovieClient movieClient;
+
+	public AdminKakaoPayRefundService(KakaoPayClient kakaoPayClient, KakaoPayProperties kakaoPayProperties, PaymentRepository paymentRepository, MovieClient movieClient) {
+		super(kakaoPayClient, kakaoPayProperties);
+		this.paymentRepository = paymentRepository;
+		this.movieClient = movieClient;
+	}
+
+	@Override
+	protected Payment getPayment(Long paymentId) {
+		return paymentRepository.findById(paymentId)
+			.orElseThrow(ErrorCode::throwPaymentIdNotFound);
+	}
+
+	@Override
+	protected TicketsRefundResponse movieAndPaymentRefund(Payment payment) {
+		TicketsRefundResponse refundResponse = movieClient.ticketRefund(new TicketsRefundRequest(payment.getId()));
+		payment.refund();
+
+		return refundResponse;
+	}
+
+}

server/src/main/java/com/ticketing/server/payment/service/MyKakaoPayRefundService.java

@@ -0,0 +1,54 @@
+package com.ticketing.server.payment.service;
+
+import com.ticketing.server.global.exception.ErrorCode;
+import com.ticketing.server.movie.service.dto.TicketsRefundResponse;
+import com.ticketing.server.payment.api.KakaoPayClient;
+import com.ticketing.server.payment.api.KakaoPayProperties;
+import com.ticketing.server.payment.api.MovieClient;
+import com.ticketing.server.payment.api.UserClient;
+import com.ticketing.server.payment.api.dto.response.UserDetailResponse;
+import com.ticketing.server.payment.api.impl.TicketsRefundRequest;
+import com.ticketing.server.payment.domain.Payment;
+import com.ticketing.server.payment.domain.repository.PaymentRepository;
+import com.ticketing.server.payment.service.interfaces.AbstractKakaoPayRefund;
+import java.time.LocalDateTime;
+import org.springframework.stereotype.Service;
+
+@Service
+public class MyKakaoPayRefundService extends AbstractKakaoPayRefund {
+
+	private final PaymentRepository paymentRepository;
+	private final MovieClient movieClient;
+	private final UserClient userClient;
+
+	public MyKakaoPayRefundService(KakaoPayClient kakaoPayClient, KakaoPayProperties kakaoPayProperties, PaymentRepository paymentRepository,
+		MovieClient movieClient, UserClient userClient) {
+		super(kakaoPayClient, kakaoPayProperties);
+		this.paymentRepository = paymentRepository;
+		this.movieClient = movieClient;
+		this.userClient = userClient;
+	}
+
+	@Override
+	protected Payment getPayment(Long paymentId) {
+		UserDetailResponse userDetail = userClient.detail();
+		Payment payment = paymentRepository.findById(paymentId)
+			.orElseThrow(ErrorCode::throwPaymentIdNotFound);
+
+		if (userDetail.hasUserAlternateId(payment)) {
+			throw ErrorCode.throwValidUserId();
+		}
+
+		return payment;
+	}
+
+	@Override
+	protected TicketsRefundResponse movieAndPaymentRefund(Payment payment) {
+		LocalDateTime now = LocalDateTime.now();
+		TicketsRefundResponse refundResponse = movieClient.ticketRefundByDateTime(new TicketsRefundRequest(payment.getId()), now);
+		payment.refund();
+
+		return refundResponse;
+	}
+
+}

server/src/main/java/com/ticketing/server/payment/service/PaymentApisServiceImpl.java

@@ -1,14 +1,35 @@
 package com.ticketing.server.payment.service;
 
+import com.ticketing.server.global.dto.SequenceGenerator;
 import com.ticketing.server.global.exception.ErrorCode;
+import com.ticketing.server.global.redis.PaymentCache;
+import com.ticketing.server.global.redis.PaymentCacheRepository;
+import com.ticketing.server.global.validator.constraints.NotEmptyCollection;
+import com.ticketing.server.movie.application.request.TicketCancelRequest;
+import com.ticketing.server.movie.application.request.TicketReservationRequest;
+import com.ticketing.server.movie.application.request.TicketSoldRequest;
 import com.ticketing.server.movie.application.response.TicketDetailsResponse;
+import com.ticketing.server.movie.application.response.TicketReservationResponse;
+import com.ticketing.server.payment.api.KakaoPayClient;
+import com.ticketing.server.payment.api.KakaoPayProperties;
 import com.ticketing.server.payment.api.MovieClient;
 import com.ticketing.server.payment.api.UserClient;
+import com.ticketing.server.payment.api.dto.requset.KakaoPayApproveRequest;
+import com.ticketing.server.payment.api.dto.requset.KakaoPayReadyRequest;
+import com.ticketing.server.payment.api.dto.response.KakaoPayApproveResponse;
+import com.ticketing.server.payment.api.dto.response.KakaoPayReadyResponse;
 import com.ticketing.server.payment.api.dto.response.UserDetailResponse;
 import com.ticketing.server.payment.domain.Payment;
+import com.ticketing.server.payment.domain.PaymentStatus;
+import com.ticketing.server.payment.domain.PaymentType;
 import com.ticketing.server.payment.domain.repository.PaymentRepository;
+import com.ticketing.server.payment.service.dto.PaymentCancelDTO;
+import com.ticketing.server.payment.service.dto.PaymentCompleteDTO;
 import com.ticketing.server.payment.service.dto.PaymentDetailDTO;
+import com.ticketing.server.payment.service.dto.PaymentReadyDTO;
 import com.ticketing.server.payment.service.interfaces.PaymentApisService;
+import java.util.List;
+import javax.validation.constraints.NotEmpty;
 import javax.validation.constraints.NotNull;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
@@ -23,9 +44,16 @@ import org.springframework.validation.annotation.Validated;
 @Slf4j
 public class PaymentApisServiceImpl implements PaymentApisService {
 
+	private final KakaoPayProperties kakaoPayProperties;
+
 	private final PaymentRepository paymentRepository;
+	private final PaymentCacheRepository paymentCacheRepository;
+
 	private final MovieClient movieClient;
 	private final UserClient userClient;
+	private final KakaoPayClient kakaoPayClient;
+
+	private final SequenceGenerator sequenceGenerator;
 
 	@Override
 	public PaymentDetailDTO findPaymentDetail(@NotNull Long paymentId) {
@@ -41,4 +69,90 @@ public class PaymentApisServiceImpl implements PaymentApisService {
 		return new PaymentDetailDTO(payment, tickets);
 	}
 
+	@Override
+	@Transactional
+	public PaymentReadyDTO ready(@NotEmptyCollection List<Long> ticketIds) {
+		// User 정보 조회 - user 의 대체 키가 필요함.
+		UserDetailResponse userResponse = userClient.detail();
+		Long userAlternateId = userResponse.getUserAlternateId();
+
+		// 다른 결제중인 데이터가 있다면, 예외처리
+		paymentCacheRepository.findByEmail(userResponse.getEmail())
+			.ifPresent(paymentCache -> ErrorCode.throwBadRequestPaymentReady());
+
+		// Ticket 정보 조회 - 영화제목, 티켓가격이 필요함.
+		TicketReservationResponse ticketResponse = movieClient.ticketReservation(new TicketReservationRequest(ticketIds));
+		String movieTitle = ticketResponse.getMovieTitle();
+
+		// 예매번호 자동생성
+		Long paymentNumber = sequenceGenerator.generateId();
+
+		KakaoPayReadyRequest request = new KakaoPayReadyRequest(
+			paymentNumber.toString(),
+			userAlternateId.toString(),
+			movieTitle,
+			ticketResponse.getTicketQuantity(),
+			ticketResponse.getTotalPrice(),
+			kakaoPayProperties.getApprovalUrl(),
+			kakaoPayProperties.getCancelUrl(),
+			kakaoPayProperties.getFailUrl()
+		);
+		KakaoPayReadyResponse response = kakaoPayClient.ready(kakaoPayProperties.getAuthorization(), request);
+
+		paymentCacheRepository.save(
+			new PaymentCache(
+				userResponse.getEmail(),
+				movieTitle,
+				response.getTid(),
+				ticketIds,
+				userAlternateId,
+				paymentNumber,
+				request.getTotalAmount()
+			)
+		);
+
+		return new PaymentReadyDTO(response);
+	}
+
+	@Override
+	@Transactional
+	public PaymentCompleteDTO complete(@NotEmpty String email, @NotEmpty String pgToken) {
+		PaymentCache paymentCache = paymentCacheRepository.findByEmail(email)
+			.orElseThrow(ErrorCode::throwBadRequestPaymentComplete);
+
+		Payment payment = new Payment(paymentCache, PaymentType.KAKAO_PAY, PaymentStatus.SOLD, paymentCache.getTotalAmount());
+		payment = paymentRepository.save(payment);
+
+		movieClient.ticketSold(new TicketSoldRequest(payment.getId(), paymentCache.getTicketIds()));
+		paymentCacheRepository.delete(paymentCache);
+
+		// 카카오페이 결제완료
+		String paymentNumberToString = paymentCache.getPaymentNumber().toString();
+		String userAlternateIdToString = paymentCache.getUserAlternateId().toString();
+		KakaoPayApproveRequest kakaoPayApproveRequest = new KakaoPayApproveRequest(
+			paymentCache.getTid(),
+			paymentNumberToString,
+			userAlternateIdToString,
+			pgToken
+		);
+		KakaoPayApproveResponse kakaoPayApproveResponse = kakaoPayClient.approve(
+			kakaoPayProperties.getAuthorization(),
+			kakaoPayApproveRequest
+		);
+
+		return new PaymentCompleteDTO(email, kakaoPayApproveResponse);
+	}
+
+	@Override
+	@Transactional
+	public PaymentCancelDTO cancel(@NotEmpty String email) {
+		PaymentCache paymentCache = paymentCacheRepository.findByEmail(email)
+			.orElseThrow(ErrorCode::throwBadRequestPaymentComplete);
+
+		movieClient.ticketCancel(new TicketCancelRequest(paymentCache.getTicketIds()));
+		paymentCacheRepository.delete(paymentCache);
+
+		return new PaymentCancelDTO(paymentCache);
+	}
+
 }

server/src/main/java/com/ticketing/server/payment/service/dto/CreatePaymentDTO.java

@@ -1,32 +0,0 @@
-package com.ticketing.server.payment.service.dto;
-
-import com.ticketing.server.payment.domain.Payment;
-import com.ticketing.server.payment.domain.PaymentStatus;
-import com.ticketing.server.payment.domain.PaymentType;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@Getter
-@AllArgsConstructor
-public class CreatePaymentDTO {
-
-	private final Long userAlternateId;
-	private final String movieTitle;
-	private final PaymentType type;
-	private final PaymentStatus status;
-	private final String paymentNumber;
-	private final Integer totalPrice;
-
-	public Payment toEntity() {
-		return new Payment
-			(
-				this.getUserAlternateId(),
-				this.getMovieTitle(),
-				this.getType(),
-				this.getStatus(),
-				this.getPaymentNumber(),
-				this.getTotalPrice()
-			);
-	}
-
-}

server/src/main/java/com/ticketing/server/payment/service/dto/PaymentCancelDTO.java

@@ -0,0 +1,32 @@
+package com.ticketing.server.payment.service.dto;
+
+import com.ticketing.server.global.redis.PaymentCache;
+import com.ticketing.server.payment.application.response.PaymentCancelResponse;
+import java.util.List;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+public class PaymentCancelDTO {
+
+	private final String email;
+	private final String movieTitle;
+	private final String tid;
+	private final List<Long> ticketIds;
+
+	public PaymentCancelDTO(PaymentCache paymentCache) {
+		this(
+			paymentCache.getEmail(),
+			paymentCache.getMovieTitle(),
+			paymentCache.getTid(),
+			paymentCache.getTicketIds()
+		);
+	}
+
+	public PaymentCancelResponse toResponse() {
+		return new PaymentCancelResponse(email, movieTitle, tid, ticketIds);
+	}
+
+}

server/src/main/java/com/ticketing/server/payment/service/dto/PaymentCompleteDTO.java

@@ -0,0 +1,33 @@
+package com.ticketing.server.payment.service.dto;
+
+import com.ticketing.server.payment.api.dto.response.KakaoPayApproveResponse;
+import com.ticketing.server.payment.application.response.PaymentCompleteResponse;
+import javax.validation.constraints.NotEmpty;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class PaymentCompleteDTO {
+
+	private final String email;
+	private final String tid;
+	private final String movieTitle;
+	private final Integer quantity;
+	private final Integer totalAmount;
+
+	public PaymentCompleteDTO(@NotEmpty String email, KakaoPayApproveResponse kakaoPayApproveResponse) {
+		this(
+			email,
+			kakaoPayApproveResponse.getTid(),
+			kakaoPayApproveResponse.getItemName(),
+			kakaoPayApproveResponse.getQuantity(),
+			kakaoPayApproveResponse.getTotalAmount()
+		);
+	}
+
+	public PaymentCompleteResponse toResponse() {
+		return new PaymentCompleteResponse(email, tid, movieTitle, quantity, totalAmount);
+	}
+
+}

server/src/main/java/com/ticketing/server/payment/service/dto/PaymentReadyDTO.java

@@ -0,0 +1,40 @@
+package com.ticketing.server.payment.service.dto;
+
+import com.ticketing.server.payment.api.dto.response.KakaoPayReadyResponse;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+public class PaymentReadyDTO {
+
+	// 결제 고유 번호
+	private String tid;
+
+	// 요청 클라이언트가 모바일 앱일 경우
+	private String nextRedirectAppUrl;
+
+	// 요청 클라이언트가 모바일 웹일 경우
+	private String nextRedirectMobileUrl;
+
+	// 요청 클라이언트가 PC 웹일 경우
+	private String nextRedirectPcUrl;
+
+	// 카카오페이 결제 화면으로 이동하는 Android 앱 스킴
+	private String androidAppScheme;
+
+	// 카카오페이 결제 화면으로 이동하는 IOS 앱 스킴
+	private String iosAppScheme;
+
+	public PaymentReadyDTO(KakaoPayReadyResponse response) {
+		this(
+			response.getTid(),
+			response.getNextRedirectAppUrl(),
+			response.getNextRedirectMobileUrl(),
+			response.getNextRedirectPcUrl(),
+			response.getAndroidAppScheme(),
+			response.getIosAppScheme()
+		);
+	}
+}

server/src/main/java/com/ticketing/server/payment/service/dto/PaymentRefundDTO.java

@@ -0,0 +1,41 @@
+package com.ticketing.server.payment.service.dto;
+
+import com.ticketing.server.movie.service.dto.TicketsRefundResponse;
+import com.ticketing.server.payment.api.dto.response.KakaoPayCancelResponse;
+import com.ticketing.server.payment.application.response.PaymentRefundResponse;
+import com.ticketing.server.payment.domain.Payment;
+import java.time.LocalDateTime;
+import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class PaymentRefundDTO {
+
+	private Long paymentId;
+	private List<Long> ticketIds;
+	private String movieTitle;
+	private Integer cancelAmount;
+	private LocalDateTime canceledAt;
+
+	public PaymentRefundDTO(Payment payment, KakaoPayCancelResponse kakaoPayCancelResponse, TicketsRefundResponse refundResponse) {
+		this(
+			payment.getId(),
+			refundResponse.getTicketIds(),
+			kakaoPayCancelResponse.getItemName(),
+			kakaoPayCancelResponse.getTotalAmount(),
+			kakaoPayCancelResponse.getCanceledAt()
+		);
+	}
+
+	public PaymentRefundResponse toResponse() {
+		return new PaymentRefundResponse(
+			paymentId,
+			ticketIds,
+			movieTitle,
+			cancelAmount,
+			canceledAt
+		);
+	}
+}

server/src/main/java/com/ticketing/server/payment/service/interfaces/AbstractKakaoPayRefund.java

@@ -0,0 +1,42 @@
+package com.ticketing.server.payment.service.interfaces;
+
+import com.ticketing.server.movie.service.dto.TicketsRefundResponse;
+import com.ticketing.server.payment.api.KakaoPayClient;
+import com.ticketing.server.payment.api.KakaoPayProperties;
+import com.ticketing.server.payment.api.dto.requset.KakaoPayCancelRequest;
+import com.ticketing.server.payment.api.dto.response.KakaoPayCancelResponse;
+import com.ticketing.server.payment.domain.Payment;
+import com.ticketing.server.payment.service.dto.PaymentRefundDTO;
+import javax.validation.constraints.NotNull;
+import lombok.RequiredArgsConstructor;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.validation.annotation.Validated;
+
+@RequiredArgsConstructor
+@Validated
+public abstract class AbstractKakaoPayRefund {
+
+	private final KakaoPayClient kakaoPayClient;
+	private final KakaoPayProperties kakaoPayProperties;
+
+	@Transactional
+	public PaymentRefundDTO refund(@NotNull Long paymentId) {
+		Payment payment = getPayment(paymentId);
+
+		// 내부 환불
+		TicketsRefundResponse refundResponse = movieAndPaymentRefund(payment);
+
+		// 카카오페이 환불
+		KakaoPayCancelResponse kakaoPayCancelResponse = kakaoPayClient.cancel(
+			kakaoPayProperties.getAuthorization(),
+			new KakaoPayCancelRequest(payment.getTid(), payment.getTotalPrice())
+		);
+
+		return new PaymentRefundDTO(payment, kakaoPayCancelResponse, refundResponse);
+	}
+
+	protected abstract Payment getPayment(Long paymentId);
+
+	protected abstract TicketsRefundResponse movieAndPaymentRefund(Payment payment);
+
+}

server/src/main/java/com/ticketing/server/payment/service/interfaces/PaymentApisService.java

@@ -1,9 +1,22 @@
 package com.ticketing.server.payment.service.interfaces;
 
+import com.ticketing.server.global.validator.constraints.NotEmptyCollection;
+import com.ticketing.server.payment.service.dto.PaymentCancelDTO;
+import com.ticketing.server.payment.service.dto.PaymentCompleteDTO;
 import com.ticketing.server.payment.service.dto.PaymentDetailDTO;
+import com.ticketing.server.payment.service.dto.PaymentReadyDTO;
+import java.util.List;
+import javax.validation.constraints.NotEmpty;
 import javax.validation.constraints.NotNull;
 
 public interface PaymentApisService {
 
 	PaymentDetailDTO findPaymentDetail(@NotNull Long paymentId);
+
+	PaymentReadyDTO ready(@NotEmptyCollection List<Long> ticketIds);
+
+	PaymentCompleteDTO complete(@NotEmpty String email, @NotEmpty String pgToken);
+
+	PaymentCancelDTO cancel(@NotEmpty String email);
+
 }

server/src/main/java/com/ticketing/server/user/application/AuthController.java

@@ -1,10 +1,11 @@
 package com.ticketing.server.user.application;
 
 import com.ticketing.server.user.application.request.LoginRequest;
+import com.ticketing.server.user.application.request.RefreshRequest;
 import com.ticketing.server.user.application.response.LogoutResponse;
-import com.ticketing.server.user.service.dto.TokenDTO;
 import com.ticketing.server.user.application.response.TokenResponse;
 import com.ticketing.server.user.service.dto.DeleteRefreshTokenDTO;
+import com.ticketing.server.user.service.dto.TokenDTO;
 import com.ticketing.server.user.service.interfaces.AuthenticationService;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
@@ -16,7 +17,6 @@ import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
 @RestController
@@ -37,8 +37,8 @@ public class AuthController {
 	}
 
 	@PostMapping("/refresh")
-	public ResponseEntity<TokenResponse> refreshToken(@RequestParam("refreshToken") String refreshToken) {
-		TokenDTO tokenDto = authenticationService.reissueTokenDto(refreshToken);
+	public ResponseEntity<TokenResponse> refreshToken(@RequestBody RefreshRequest request) {
+		TokenDTO tokenDto = authenticationService.reissueTokenDto(request.getRefreshToken());
 
 		return ResponseEntity.status(HttpStatus.OK)
 			.headers(getHttpHeaders())

server/src/main/java/com/ticketing/server/user/application/UserController.java

@@ -9,6 +9,7 @@ import com.ticketing.server.user.application.request.UserChangePasswordRequest;
 import com.ticketing.server.user.application.request.UserDeleteRequest;
 import com.ticketing.server.user.application.response.PaymentsResponse;
 import com.ticketing.server.user.application.response.SignUpResponse;
+import com.ticketing.server.user.application.response.UserChangeGradeResponse;
 import com.ticketing.server.user.application.response.UserChangePasswordResponse;
 import com.ticketing.server.user.application.response.UserDeleteResponse;
 import com.ticketing.server.user.application.response.UserDetailResponse;