init

2026-01-20 16:57:51 +07:00
parent c782c94958
commit 8086bcfe0c
61 changed files with 2894 additions and 1 deletions
--- a/README.md
+++ b/README.md
@@ -1,2 +1,41 @@
-# java-test-services
+# 📋 Java Testing System - Microservices

+Dự án này là một hệ thống Microservices backend được xây dựng trên nền tảng **Spring Boot**, sử dụng **MongoDB** làm cơ sở dữ liệu chính và **Redis** để khóa giftcode-user tránh tình trạng thao tác quá nhanh. Toàn bộ hệ thống được đóng gói và quản lý bằng **Docker Compose**.
+
+
+
+---
+
+## 🚀 Các dịch vụ chính
+
+| Dịch vụ | Port | Công nghệ | Mô tả |
+| :--- | :--- | :--- | :--- |
+| **User Service** | `8601` | Spring Boot, MongoDB | Quản lý danh tính và thông tin người dùng. |
+| **Giftcode Service** | `8602` | Spring Boot, MongoDB | Quản lý, tạo và kiểm tra mã quà tặng. |
+| **Redis** | `6379` | Redis | Bộ nhớ đệm dùng chung cho các service. |
+| **MongoDB** | `27017` | MongoDB | Cơ sở dữ liệu NoSQL chính của hệ thống. |
+
+---
+
+## 🛠 Yêu cầu hệ thống
+
+Trước khi bắt đầu, hãy đảm bảo máy tính của bạn đã cài đặt:
+* **Docker** & **Docker Compose**
+* **Java 21** (Nếu muốn build code thủ công)
+* **Maven 3.9+** (Nếu muốn build file Jar thủ công)
+
+---
+
+## 📦 Hướng dẫn cài đặt và khởi chạy
+
+### 1. Build và chạy toàn bộ bằng Docker Compose
+Mở Terminal/CMD tại thư mục gốc của dự án và chạy lệnh sau:
+
+```bash
+# Xóa sạch các container cũ và build lại từ đầu
+docker-compose down
+docker-compose up -d --build
+
+### 2. có thể chạy bằng dev IDE. yêu cầu có docker local.
+docker run -d -p 27017:27017 --name mongo mongo:7
+docker run -d -p 6379:6379 --name redis redis:7
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -0,0 +1,27 @@
+version: "3.9"
+services:
+  redis:
+    image: redis:7
+
+  mongodb:
+    image: mongo:7
+
+  user-service:
+    build: ./user-service
+    ports:
+      - "8601:8601"
+    environment:
+      - SPRING_PROFILES_ACTIVE=docker
+    depends_on:
+      - redis
+      - mongodb
+
+  giftcode-service:
+    build: ./giftcode-service
+    ports:
+      - "8602:8602"
+    environment:
+      - SPRING_PROFILES_ACTIVE=docker
+    depends_on:
+      - redis
+      - mongodb
--- a/giftCode-service/.gitattributes
+++ b/giftCode-service/.gitattributes
@@ -0,0 +1,2 @@
+/mvnw text eol=lf
+*.cmd text eol=crlf
--- a/giftCode-service/.gitignore
+++ b/giftCode-service/.gitignore
@@ -0,0 +1,33 @@
+HELP.md
+target/
+.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
--- a/giftCode-service/.mvn/wrapper/maven-wrapper.properties
+++ b/giftCode-service/.mvn/wrapper/maven-wrapper.properties
@@ -0,0 +1,3 @@
+wrapperVersion=3.3.4
+distributionType=only-script
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.12/apache-maven-3.9.12-bin.zip
--- a/giftCode-service/Dockerfile
+++ b/giftCode-service/Dockerfile
@@ -0,0 +1,12 @@
+# ===== BUILD STAGE =====
+FROM maven:3.9-eclipse-temurin-21 AS build
+WORKDIR /build
+COPY pom.xml .
+COPY src ./src
+RUN mvn clean package -DskipTests
+
+# ===== RUN STAGE =====
+FROM eclipse-temurin:21-jre
+WORKDIR /app
+COPY --from=build /build/target/*.jar app.jar
+ENTRYPOINT ["java","-jar","app.jar"]
--- a/giftCode-service/mvnw
+++ b/giftCode-service/mvnw
@@ -0,0 +1,295 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Apache Maven Wrapper startup batch script, version 3.3.4
+#
+# Optional ENV vars
+# -----------------
+#   JAVA_HOME - location of a JDK home dir, required when download maven via java source
+#   MVNW_REPOURL - repo url base for downloading maven distribution
+#   MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+#   MVNW_VERBOSE - true: enable verbose log; debug: trace the mvnw script; others: silence the output
+# ----------------------------------------------------------------------------
+
+set -euf
+[ "${MVNW_VERBOSE-}" != debug ] || set -x
+
+# OS specific support.
+native_path() { printf %s\\n "$1"; }
+case "$(uname)" in
+CYGWIN* | MINGW*)
+  [ -z "${JAVA_HOME-}" ] || JAVA_HOME="$(cygpath --unix "$JAVA_HOME")"
+  native_path() { cygpath --path --windows "$1"; }
+  ;;
+esac
+
+# set JAVACMD and JAVACCMD
+set_java_home() {
+  # For Cygwin and MinGW, ensure paths are in Unix format before anything is touched
+  if [ -n "${JAVA_HOME-}" ]; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ]; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+      JAVACCMD="$JAVA_HOME/jre/sh/javac"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+      JAVACCMD="$JAVA_HOME/bin/javac"
+
+      if [ ! -x "$JAVACMD" ] || [ ! -x "$JAVACCMD" ]; then
+        echo "The JAVA_HOME environment variable is not defined correctly, so mvnw cannot run." >&2
+        echo "JAVA_HOME is set to \"$JAVA_HOME\", but \"\$JAVA_HOME/bin/java\" or \"\$JAVA_HOME/bin/javac\" does not exist." >&2
+        return 1
+      fi
+    fi
+  else
+    JAVACMD="$(
+      'set' +e
+      'unset' -f command 2>/dev/null
+      'command' -v java
+    )" || :
+    JAVACCMD="$(
+      'set' +e
+      'unset' -f command 2>/dev/null
+      'command' -v javac
+    )" || :
+
+    if [ ! -x "${JAVACMD-}" ] || [ ! -x "${JAVACCMD-}" ]; then
+      echo "The java/javac command does not exist in PATH nor is JAVA_HOME set, so mvnw cannot run." >&2
+      return 1
+    fi
+  fi
+}
+
+# hash string like Java String::hashCode
+hash_string() {
+  str="${1:-}" h=0
+  while [ -n "$str" ]; do
+    char="${str%"${str#?}"}"
+    h=$(((h * 31 + $(LC_CTYPE=C printf %d "'$char")) % 4294967296))
+    str="${str#?}"
+  done
+  printf %x\\n $h
+}
+
+verbose() { :; }
+[ "${MVNW_VERBOSE-}" != true ] || verbose() { printf %s\\n "${1-}"; }
+
+die() {
+  printf %s\\n "$1" >&2
+  exit 1
+}
+
+trim() {
+  # MWRAPPER-139:
+  #   Trims trailing and leading whitespace, carriage returns, tabs, and linefeeds.
+  #   Needed for removing poorly interpreted newline sequences when running in more
+  #   exotic environments such as mingw bash on Windows.
+  printf "%s" "${1}" | tr -d '[:space:]'
+}
+
+scriptDir="$(dirname "$0")"
+scriptName="$(basename "$0")"
+
+# parse distributionUrl and optional distributionSha256Sum, requires .mvn/wrapper/maven-wrapper.properties
+while IFS="=" read -r key value; do
+  case "${key-}" in
+  distributionUrl) distributionUrl=$(trim "${value-}") ;;
+  distributionSha256Sum) distributionSha256Sum=$(trim "${value-}") ;;
+  esac
+done <"$scriptDir/.mvn/wrapper/maven-wrapper.properties"
+[ -n "${distributionUrl-}" ] || die "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
+
+case "${distributionUrl##*/}" in
+maven-mvnd-*bin.*)
+  MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/
+  case "${PROCESSOR_ARCHITECTURE-}${PROCESSOR_ARCHITEW6432-}:$(uname -a)" in
+  *AMD64:CYGWIN* | *AMD64:MINGW*) distributionPlatform=windows-amd64 ;;
+  :Darwin*x86_64) distributionPlatform=darwin-amd64 ;;
+  :Darwin*arm64) distributionPlatform=darwin-aarch64 ;;
+  :Linux*x86_64*) distributionPlatform=linux-amd64 ;;
+  *)
+    echo "Cannot detect native platform for mvnd on $(uname)-$(uname -m), use pure java version" >&2
+    distributionPlatform=linux-amd64
+    ;;
+  esac
+  distributionUrl="${distributionUrl%-bin.*}-$distributionPlatform.zip"
+  ;;
+maven-mvnd-*) MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/ ;;
+*) MVN_CMD="mvn${scriptName#mvnw}" _MVNW_REPO_PATTERN=/org/apache/maven/ ;;
+esac
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
+[ -z "${MVNW_REPOURL-}" ] || distributionUrl="$MVNW_REPOURL$_MVNW_REPO_PATTERN${distributionUrl#*"$_MVNW_REPO_PATTERN"}"
+distributionUrlName="${distributionUrl##*/}"
+distributionUrlNameMain="${distributionUrlName%.*}"
+distributionUrlNameMain="${distributionUrlNameMain%-bin}"
+MAVEN_USER_HOME="${MAVEN_USER_HOME:-${HOME}/.m2}"
+MAVEN_HOME="${MAVEN_USER_HOME}/wrapper/dists/${distributionUrlNameMain-}/$(hash_string "$distributionUrl")"
+
+exec_maven() {
+  unset MVNW_VERBOSE MVNW_USERNAME MVNW_PASSWORD MVNW_REPOURL || :
+  exec "$MAVEN_HOME/bin/$MVN_CMD" "$@" || die "cannot exec $MAVEN_HOME/bin/$MVN_CMD"
+}
+
+if [ -d "$MAVEN_HOME" ]; then
+  verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+  exec_maven "$@"
+fi
+
+case "${distributionUrl-}" in
+*?-bin.zip | *?maven-mvnd-?*-?*.zip) ;;
+*) die "distributionUrl is not valid, must match *-bin.zip or maven-mvnd-*.zip, but found '${distributionUrl-}'" ;;
+esac
+
+# prepare tmp dir
+if TMP_DOWNLOAD_DIR="$(mktemp -d)" && [ -d "$TMP_DOWNLOAD_DIR" ]; then
+  clean() { rm -rf -- "$TMP_DOWNLOAD_DIR"; }
+  trap clean HUP INT TERM EXIT
+else
+  die "cannot create temp dir"
+fi
+
+mkdir -p -- "${MAVEN_HOME%/*}"
+
+# Download and Install Apache Maven
+verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+verbose "Downloading from: $distributionUrl"
+verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+# select .zip or .tar.gz
+if ! command -v unzip >/dev/null; then
+  distributionUrl="${distributionUrl%.zip}.tar.gz"
+  distributionUrlName="${distributionUrl##*/}"
+fi
+
+# verbose opt
+__MVNW_QUIET_WGET=--quiet __MVNW_QUIET_CURL=--silent __MVNW_QUIET_UNZIP=-q __MVNW_QUIET_TAR=''
+[ "${MVNW_VERBOSE-}" != true ] || __MVNW_QUIET_WGET='' __MVNW_QUIET_CURL='' __MVNW_QUIET_UNZIP='' __MVNW_QUIET_TAR=v
+
+# normalize http auth
+case "${MVNW_PASSWORD:+has-password}" in
+'') MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+has-password) [ -n "${MVNW_USERNAME-}" ] || MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+esac
+
+if [ -z "${MVNW_USERNAME-}" ] && command -v wget >/dev/null; then
+  verbose "Found wget ... using wget"
+  wget ${__MVNW_QUIET_WGET:+"$__MVNW_QUIET_WGET"} "$distributionUrl" -O "$TMP_DOWNLOAD_DIR/$distributionUrlName" || die "wget: Failed to fetch $distributionUrl"
+elif [ -z "${MVNW_USERNAME-}" ] && command -v curl >/dev/null; then
+  verbose "Found curl ... using curl"
+  curl ${__MVNW_QUIET_CURL:+"$__MVNW_QUIET_CURL"} -f -L -o "$TMP_DOWNLOAD_DIR/$distributionUrlName" "$distributionUrl" || die "curl: Failed to fetch $distributionUrl"
+elif set_java_home; then
+  verbose "Falling back to use Java to download"
+  javaSource="$TMP_DOWNLOAD_DIR/Downloader.java"
+  targetZip="$TMP_DOWNLOAD_DIR/$distributionUrlName"
+  cat >"$javaSource" <<-END
+	public class Downloader extends java.net.Authenticator
+	{
+	  protected java.net.PasswordAuthentication getPasswordAuthentication()
+	  {
+	    return new java.net.PasswordAuthentication( System.getenv( "MVNW_USERNAME" ), System.getenv( "MVNW_PASSWORD" ).toCharArray() );
+	  }
+	  public static void main( String[] args ) throws Exception
+	  {
+	    setDefault( new Downloader() );
+	    java.nio.file.Files.copy( java.net.URI.create( args[0] ).toURL().openStream(), java.nio.file.Paths.get( args[1] ).toAbsolutePath().normalize() );
+	  }
+	}
+	END
+  # For Cygwin/MinGW, switch paths to Windows format before running javac and java
+  verbose " - Compiling Downloader.java ..."
+  "$(native_path "$JAVACCMD")" "$(native_path "$javaSource")" || die "Failed to compile Downloader.java"
+  verbose " - Running Downloader.java ..."
+  "$(native_path "$JAVACMD")" -cp "$(native_path "$TMP_DOWNLOAD_DIR")" Downloader "$distributionUrl" "$(native_path "$targetZip")"
+fi
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+if [ -n "${distributionSha256Sum-}" ]; then
+  distributionSha256Result=false
+  if [ "$MVN_CMD" = mvnd.sh ]; then
+    echo "Checksum validation is not supported for maven-mvnd." >&2
+    echo "Please disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+    exit 1
+  elif command -v sha256sum >/dev/null; then
+    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | sha256sum -c - >/dev/null 2>&1; then
+      distributionSha256Result=true
+    fi
+  elif command -v shasum >/dev/null; then
+    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | shasum -a 256 -c >/dev/null 2>&1; then
+      distributionSha256Result=true
+    fi
+  else
+    echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available." >&2
+    echo "Please install either command, or disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+    exit 1
+  fi
+  if [ $distributionSha256Result = false ]; then
+    echo "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised." >&2
+    echo "If you updated your Maven version, you need to update the specified distributionSha256Sum property." >&2
+    exit 1
+  fi
+fi
+
+# unzip and move
+if command -v unzip >/dev/null; then
+  unzip ${__MVNW_QUIET_UNZIP:+"$__MVNW_QUIET_UNZIP"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -d "$TMP_DOWNLOAD_DIR" || die "failed to unzip"
+else
+  tar xzf${__MVNW_QUIET_TAR:+"$__MVNW_QUIET_TAR"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -C "$TMP_DOWNLOAD_DIR" || die "failed to untar"
+fi
+
+# Find the actual extracted directory name (handles snapshots where filename != directory name)
+actualDistributionDir=""
+
+# First try the expected directory name (for regular distributions)
+if [ -d "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" ]; then
+  if [ -f "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain/bin/$MVN_CMD" ]; then
+    actualDistributionDir="$distributionUrlNameMain"
+  fi
+fi
+
+# If not found, search for any directory with the Maven executable (for snapshots)
+if [ -z "$actualDistributionDir" ]; then
+  # enable globbing to iterate over items
+  set +f
+  for dir in "$TMP_DOWNLOAD_DIR"/*; do
+    if [ -d "$dir" ]; then
+      if [ -f "$dir/bin/$MVN_CMD" ]; then
+        actualDistributionDir="$(basename "$dir")"
+        break
+      fi
+    fi
+  done
+  set -f
+fi
+
+if [ -z "$actualDistributionDir" ]; then
+  verbose "Contents of $TMP_DOWNLOAD_DIR:"
+  verbose "$(ls -la "$TMP_DOWNLOAD_DIR")"
+  die "Could not find Maven distribution directory in extracted archive"
+fi
+
+verbose "Found extracted Maven distribution directory: $actualDistributionDir"
+printf %s\\n "$distributionUrl" >"$TMP_DOWNLOAD_DIR/$actualDistributionDir/mvnw.url"
+mv -- "$TMP_DOWNLOAD_DIR/$actualDistributionDir" "$MAVEN_HOME" || [ -d "$MAVEN_HOME" ] || die "fail to move MAVEN_HOME"
+
+clean || :
+exec_maven "$@"
--- a/giftCode-service/mvnw.cmd
+++ b/giftCode-service/mvnw.cmd
@@ -0,0 +1,189 @@
+<# : batch portion
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    http://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Apache Maven Wrapper startup batch script, version 3.3.4
+@REM
+@REM Optional ENV vars
+@REM   MVNW_REPOURL - repo url base for downloading maven distribution
+@REM   MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+@REM   MVNW_VERBOSE - true: enable verbose log; others: silence the output
+@REM ----------------------------------------------------------------------------
+
+@IF "%__MVNW_ARG0_NAME__%"=="" (SET __MVNW_ARG0_NAME__=%~nx0)
+@SET __MVNW_CMD__=
+@SET __MVNW_ERROR__=
+@SET __MVNW_PSMODULEP_SAVE=%PSModulePath%
+@SET PSModulePath=
+@FOR /F "usebackq tokens=1* delims==" %%A IN (`powershell -noprofile "& {$scriptDir='%~dp0'; $script='%__MVNW_ARG0_NAME__%'; icm -ScriptBlock ([Scriptblock]::Create((Get-Content -Raw '%~f0'))) -NoNewScope}"`) DO @(
+  IF "%%A"=="MVN_CMD" (set __MVNW_CMD__=%%B) ELSE IF "%%B"=="" (echo %%A) ELSE (echo %%A=%%B)
+)
+@SET PSModulePath=%__MVNW_PSMODULEP_SAVE%
+@SET __MVNW_PSMODULEP_SAVE=
+@SET __MVNW_ARG0_NAME__=
+@SET MVNW_USERNAME=
+@SET MVNW_PASSWORD=
+@IF NOT "%__MVNW_CMD__%"=="" ("%__MVNW_CMD__%" %*)
+@echo Cannot start maven from wrapper >&2 && exit /b 1
+@GOTO :EOF
+: end batch / begin powershell #>
+
+$ErrorActionPreference = "Stop"
+if ($env:MVNW_VERBOSE -eq "true") {
+  $VerbosePreference = "Continue"
+}
+
+# calculate distributionUrl, requires .mvn/wrapper/maven-wrapper.properties
+$distributionUrl = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionUrl
+if (!$distributionUrl) {
+  Write-Error "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
+}
+
+switch -wildcard -casesensitive ( $($distributionUrl -replace '^.*/','') ) {
+  "maven-mvnd-*" {
+    $USE_MVND = $true
+    $distributionUrl = $distributionUrl -replace '-bin\.[^.]*$',"-windows-amd64.zip"
+    $MVN_CMD = "mvnd.cmd"
+    break
+  }
+  default {
+    $USE_MVND = $false
+    $MVN_CMD = $script -replace '^mvnw','mvn'
+    break
+  }
+}
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
+if ($env:MVNW_REPOURL) {
+  $MVNW_REPO_PATTERN = if ($USE_MVND -eq $False) { "/org/apache/maven/" } else { "/maven/mvnd/" }
+  $distributionUrl = "$env:MVNW_REPOURL$MVNW_REPO_PATTERN$($distributionUrl -replace "^.*$MVNW_REPO_PATTERN",'')"
+}
+$distributionUrlName = $distributionUrl -replace '^.*/',''
+$distributionUrlNameMain = $distributionUrlName -replace '\.[^.]*$','' -replace '-bin$',''
+
+$MAVEN_M2_PATH = "$HOME/.m2"
+if ($env:MAVEN_USER_HOME) {
+  $MAVEN_M2_PATH = "$env:MAVEN_USER_HOME"
+}
+
+if (-not (Test-Path -Path $MAVEN_M2_PATH)) {
+    New-Item -Path $MAVEN_M2_PATH -ItemType Directory | Out-Null
+}
+
+$MAVEN_WRAPPER_DISTS = $null
+if ((Get-Item $MAVEN_M2_PATH).Target[0] -eq $null) {
+  $MAVEN_WRAPPER_DISTS = "$MAVEN_M2_PATH/wrapper/dists"
+} else {
+  $MAVEN_WRAPPER_DISTS = (Get-Item $MAVEN_M2_PATH).Target[0] + "/wrapper/dists"
+}
+
+$MAVEN_HOME_PARENT = "$MAVEN_WRAPPER_DISTS/$distributionUrlNameMain"
+$MAVEN_HOME_NAME = ([System.Security.Cryptography.SHA256]::Create().ComputeHash([byte[]][char[]]$distributionUrl) | ForEach-Object {$_.ToString("x2")}) -join ''
+$MAVEN_HOME = "$MAVEN_HOME_PARENT/$MAVEN_HOME_NAME"
+
+if (Test-Path -Path "$MAVEN_HOME" -PathType Container) {
+  Write-Verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+  Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
+  exit $?
+}
+
+if (! $distributionUrlNameMain -or ($distributionUrlName -eq $distributionUrlNameMain)) {
+  Write-Error "distributionUrl is not valid, must end with *-bin.zip, but found $distributionUrl"
+}
+
+# prepare tmp dir
+$TMP_DOWNLOAD_DIR_HOLDER = New-TemporaryFile
+$TMP_DOWNLOAD_DIR = New-Item -Itemtype Directory -Path "$TMP_DOWNLOAD_DIR_HOLDER.dir"
+$TMP_DOWNLOAD_DIR_HOLDER.Delete() | Out-Null
+trap {
+  if ($TMP_DOWNLOAD_DIR.Exists) {
+    try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+    catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+  }
+}
+
+New-Item -Itemtype Directory -Path "$MAVEN_HOME_PARENT" -Force | Out-Null
+
+# Download and Install Apache Maven
+Write-Verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+Write-Verbose "Downloading from: $distributionUrl"
+Write-Verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+$webclient = New-Object System.Net.WebClient
+if ($env:MVNW_USERNAME -and $env:MVNW_PASSWORD) {
+  $webclient.Credentials = New-Object System.Net.NetworkCredential($env:MVNW_USERNAME, $env:MVNW_PASSWORD)
+}
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+$webclient.DownloadFile($distributionUrl, "$TMP_DOWNLOAD_DIR/$distributionUrlName") | Out-Null
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+$distributionSha256Sum = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionSha256Sum
+if ($distributionSha256Sum) {
+  if ($USE_MVND) {
+    Write-Error "Checksum validation is not supported for maven-mvnd. `nPlease disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties."
+  }
+  Import-Module $PSHOME\Modules\Microsoft.PowerShell.Utility -Function Get-FileHash
+  if ((Get-FileHash "$TMP_DOWNLOAD_DIR/$distributionUrlName" -Algorithm SHA256).Hash.ToLower() -ne $distributionSha256Sum) {
+    Write-Error "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised. If you updated your Maven version, you need to update the specified distributionSha256Sum property."
+  }
+}
+
+# unzip and move
+Expand-Archive "$TMP_DOWNLOAD_DIR/$distributionUrlName" -DestinationPath "$TMP_DOWNLOAD_DIR" | Out-Null
+
+# Find the actual extracted directory name (handles snapshots where filename != directory name)
+$actualDistributionDir = ""
+
+# First try the expected directory name (for regular distributions)
+$expectedPath = Join-Path "$TMP_DOWNLOAD_DIR" "$distributionUrlNameMain"
+$expectedMvnPath = Join-Path "$expectedPath" "bin/$MVN_CMD"
+if ((Test-Path -Path $expectedPath -PathType Container) -and (Test-Path -Path $expectedMvnPath -PathType Leaf)) {
+  $actualDistributionDir = $distributionUrlNameMain
+}
+
+# If not found, search for any directory with the Maven executable (for snapshots)
+if (!$actualDistributionDir) {
+  Get-ChildItem -Path "$TMP_DOWNLOAD_DIR" -Directory | ForEach-Object {
+    $testPath = Join-Path $_.FullName "bin/$MVN_CMD"
+    if (Test-Path -Path $testPath -PathType Leaf) {
+      $actualDistributionDir = $_.Name
+    }
+  }
+}
+
+if (!$actualDistributionDir) {
+  Write-Error "Could not find Maven distribution directory in extracted archive"
+}
+
+Write-Verbose "Found extracted Maven distribution directory: $actualDistributionDir"
+Rename-Item -Path "$TMP_DOWNLOAD_DIR/$actualDistributionDir" -NewName $MAVEN_HOME_NAME | Out-Null
+try {
+  Move-Item -Path "$TMP_DOWNLOAD_DIR/$MAVEN_HOME_NAME" -Destination $MAVEN_HOME_PARENT | Out-Null
+} catch {
+  if (! (Test-Path -Path "$MAVEN_HOME" -PathType Container)) {
+    Write-Error "fail to move MAVEN_HOME"
+  }
+} finally {
+  try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+  catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+}
+
+Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
--- a/giftCode-service/pom.xml
+++ b/giftCode-service/pom.xml
@@ -0,0 +1,75 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>4.0.1</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>com.dken</groupId>
+	<artifactId>gift-code-service</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>gift-code-service</name>
+	<description>Gift Code Service</description>
+	<url/>
+	<licenses>
+		<license/>
+	</licenses>
+	<developers>
+		<developer/>
+	</developers>
+	<scm>
+		<connection/>
+		<developerConnection/>
+		<tag/>
+		<url/>
+	</scm>
+	<properties>
+		<java.version>21</java.version>
+	</properties>
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springdoc</groupId>
+			<artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
+			<version>2.8.14</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-mongodb</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-validation</artifactId>
+		</dependency>
+		
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-redis</artifactId>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>
--- a/giftCode-service/src/main/java/com/dken/giftCodeService/config/RedisConfig.java
+++ b/giftCode-service/src/main/java/com/dken/giftCodeService/config/RedisConfig.java
@@ -0,0 +1,22 @@
+// package com.dken.giftCodeService.config;
+
+// import org.springframework.context.annotation.Bean;
+// import org.springframework.context.annotation.Configuration;
+// import org.springframework.data.redis.connection.RedisConnectionFactory;
+// import org.springframework.data.redis.core.RedisTemplate;
+// import org.springframework.data.redis.serializer.StringRedisSerializer;
+
+// @Configuration
+// public class RedisConfig {
+
+// @Bean
+// public RedisTemplate<String, String> redisTemplate(
+// RedisConnectionFactory factory) {
+
+// RedisTemplate<String, String> template = new RedisTemplate<>();
+// template.setConnectionFactory(factory);
+// template.setKeySerializer(new StringRedisSerializer());
+// template.setValueSerializer(new StringRedisSerializer());
+// return template;
+// }
+// }
--- a/giftCode-service/src/main/java/com/dken/giftCodeService/controller/GiftCodeController.java
+++ b/giftCode-service/src/main/java/com/dken/giftCodeService/controller/GiftCodeController.java
@@ -0,0 +1,43 @@
+package com.dken.giftCodeService.controller;
+
+import com.dken.giftCodeService.dto.request.GiftCodeCreateRequest;
+import com.dken.giftCodeService.dto.request.UserApplyGiftCodeRequest;
+import com.dken.giftCodeService.dto.response.GiftCodeResponse;
+import com.dken.giftCodeService.dto.response.UserApplyGiftCodeResponse;
+import com.dken.giftCodeService.service.GiftCodeService;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.domain.Page;
+import org.springframework.web.bind.annotation.*;
+import jakarta.validation.Valid;
+import jakarta.validation.constraints.Max;
+import jakarta.validation.constraints.Min;
+
+@RestController
+@RequestMapping("/gift-codes")
+public class GiftCodeController {
+
+    @Autowired
+    private GiftCodeService giftCodeService;
+
+    @PostMapping
+    public GiftCodeResponse create(@Valid @RequestBody GiftCodeCreateRequest req) {
+        return giftCodeService.createGiftCode(req);
+    }
+
+    @GetMapping
+    public Page<GiftCodeResponse> getAllGiftCodes(@RequestParam(defaultValue = "0") @Min(0) int page,
+            @RequestParam(defaultValue = "10") @Min(1) @Max(100) int size) {
+        return giftCodeService.getAllGiftCodes(page, size);
+    }
+
+    @GetMapping("/{code}")
+    public GiftCodeResponse getGiftCodeByCode(@PathVariable String code) {
+        return giftCodeService.getGiftCodeByCode(code);
+    }
+
+    @PostMapping("/apply")
+    public UserApplyGiftCodeResponse applyGiftCode(@Valid @RequestBody UserApplyGiftCodeRequest req) {
+        return giftCodeService.applyGiftCode(req.getGiftCode(), req.getUserId());
+    }
+}
--- a/giftCode-service/src/main/java/com/dken/giftCodeService/dto/request/GiftCodeCreateRequest.java
+++ b/giftCode-service/src/main/java/com/dken/giftCodeService/dto/request/GiftCodeCreateRequest.java
@@ -0,0 +1,78 @@
+package com.dken.giftCodeService.dto.request;
+
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+
+import java.time.Instant;
+
+public class GiftCodeCreateRequest {
+    private String code;
+
+    public void setCode(String code) {
+        this.code = code;
+    }
+
+    @NotBlank
+    private String type;
+    @NotNull
+    private int usage;
+    @NotNull
+    private int limit;
+    private boolean multiUse;
+    private boolean onePerType;
+    private boolean active;
+    private Instant startAt;
+    private Instant endAt;
+
+    public GiftCodeCreateRequest() {
+    }
+
+    public GiftCodeCreateRequest(String code, String type, int usage, int limit, boolean multiUse, boolean onePerType,
+            Instant startAt, Instant endAt) {
+        this.code = code;
+        this.type = type;
+        this.usage = usage;
+        this.limit = limit;
+        this.multiUse = multiUse;
+        this.onePerType = onePerType;
+        this.startAt = startAt;
+        this.endAt = endAt;
+    }
+    // getter only
+
+    public String getCode() {
+        return code;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public int getUsage() {
+        return usage;
+    }
+
+    public int getLimit() {
+        return limit;
+    }
+
+    public boolean isMultiUse() {
+        return multiUse;
+    }
+
+    public boolean isOnePerType() {
+        return onePerType;
+    }
+
+    public boolean isActive() {
+        return active;
+    }
+
+    public Instant getStartAt() {
+        return startAt;
+    }
+
+    public Instant getEndAt() {
+        return endAt;
+    }
+}
--- a/giftCode-service/src/main/java/com/dken/giftCodeService/dto/request/UserApplyGiftCodeRequest.java
+++ b/giftCode-service/src/main/java/com/dken/giftCodeService/dto/request/UserApplyGiftCodeRequest.java
@@ -0,0 +1,27 @@
+package com.dken.giftCodeService.dto.request;
+
+public class UserApplyGiftCodeRequest {
+    private String userId;
+    private String giftCode;
+
+    public UserApplyGiftCodeRequest(String userId, String giftCode) {
+        this.userId = userId;
+        this.giftCode = giftCode;
+    }
+
+    public String getUserId() {
+        return userId;
+    }
+
+    public void setUserId(String userId) {
+        this.userId = userId;
+    }
+
+    public String getGiftCode() {
+        return giftCode;
+    }
+
+    public void setGiftCode(String giftCode) {
+        this.giftCode = giftCode;
+    }
+}
--- a/giftCode-service/src/main/java/com/dken/giftCodeService/dto/response/GiftCodeResponse.java
+++ b/giftCode-service/src/main/java/com/dken/giftCodeService/dto/response/GiftCodeResponse.java
@@ -0,0 +1,80 @@
+package com.dken.giftCodeService.dto.response;
+
+import java.time.Instant;
+
+import com.dken.giftCodeService.model.GiftCode;
+
+public class GiftCodeResponse {
+
+    private String code;
+    private boolean multiUse;
+    private boolean onePerType;
+    private String type;
+    private Integer usageLimit;
+    private Integer usageCount;
+    private Instant startAt;
+    private Instant endAt;
+    private Instant createdAt;
+    private boolean active;
+
+    public static GiftCodeResponse from(GiftCode giftCode) {
+        return new GiftCodeResponse(giftCode.getCode(), giftCode.isMultiUse(), giftCode.isOnePerType(),
+                giftCode.getType(), giftCode.getUsageLimit(), giftCode.getUsageCount(), giftCode.isActive(),
+                giftCode.getStartAt(), giftCode.getEndAt(), giftCode.getCreatedAt());
+    }
+
+    public GiftCodeResponse(String code, boolean multiUse, boolean onePerType, String type,
+            Integer usageLimit, Integer usageCount, boolean active, Instant startAt, Instant endAt, Instant createdAt) {
+        this.code = code;
+        this.multiUse = multiUse;
+        this.onePerType = onePerType;
+        this.type = type;
+        this.usageLimit = usageLimit;
+        this.usageCount = usageCount;
+        this.active = active;
+        this.startAt = startAt;
+        this.endAt = endAt;
+        this.createdAt = createdAt;
+    }
+    // getter only
+
+    public String getCode() {
+        return code;
+    }
+
+    public boolean isMultiUse() {
+        return multiUse;
+    }
+
+    public boolean isOnePerType() {
+        return onePerType;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public Integer getUsageLimit() {
+        return usageLimit;
+    }
+
+    public Integer getUsageCount() {
+        return usageCount;
+    }
+
+    public boolean isActive() {
+        return active;
+    }
+
+    public Instant getStartAt() {
+        return startAt;
+    }
+
+    public Instant getEndAt() {
+        return endAt;
+    }
+
+    public Instant getCreatedAt() {
+        return createdAt;
+    }
+}
--- a/giftCode-service/src/main/java/com/dken/giftCodeService/dto/response/UserApplyGiftCodeResponse.java
+++ b/giftCode-service/src/main/java/com/dken/giftCodeService/dto/response/UserApplyGiftCodeResponse.java
@@ -0,0 +1,41 @@
+package com.dken.giftCodeService.dto.response;
+
+public class UserApplyGiftCodeResponse {
+    private String message;
+    private String status;
+    private String description;
+
+    public UserApplyGiftCodeResponse() {
+    }
+
+    public UserApplyGiftCodeResponse(String message, String status, String description) {
+        this.message = message;
+        this.status = status;
+        this.description = description;
+    }
+
+    // getters and setters
+    public String getMessage() {
+        return message;
+    }
+
+    public void setMessage(String message) {
+        this.message = message;
+    }
+
+    public String getStatus() {
+        return status;
+    }
+
+    public void setStatus(String status) {
+        this.status = status;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+}
--- a/giftCode-service/src/main/java/com/dken/giftCodeService/dto/response/UserConfirmGiftCodeResponse.java
+++ b/giftCode-service/src/main/java/com/dken/giftCodeService/dto/response/UserConfirmGiftCodeResponse.java
@@ -0,0 +1,47 @@
+package com.dken.giftCodeService.dto.response;
+
+public class UserConfirmGiftCodeResponse {
+    private String userId;
+    private String giftCode;
+    private String status;
+    private String message;
+
+    public UserConfirmGiftCodeResponse(String userId, String giftCode, String status, String message) {
+        this.userId = userId;
+        this.giftCode = giftCode;
+        this.status = status;
+        this.message = message;
+    }
+
+    public String getUserId() {
+        return userId;
+    }
+
+    public void setUserId(String userId) {
+        this.userId = userId;
+    }
+
+    public String getGiftCode() {
+        return giftCode;
+    }
+
+    public void setGiftCode(String giftCode) {
+        this.giftCode = giftCode;
+    }
+
+    public String getStatus() {
+        return status;
+    }
+
+    public void setStatus(String status) {
+        this.status = status;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+
+    public void setMessage(String message) {
+        this.message = message;
+    }
+}
--- a/giftCode-service/src/main/java/com/dken/giftCodeService/exception/DefaultException.java
+++ b/giftCode-service/src/main/java/com/dken/giftCodeService/exception/DefaultException.java
@@ -0,0 +1,7 @@
+package com.dken.giftCodeService.exception;
+
+public class DefaultException extends RuntimeException {
+    public DefaultException(String message) {
+        super(message);
+    }
+}
--- a/giftCode-service/src/main/java/com/dken/giftCodeService/exception/GlobalExceptionHandler.java
+++ b/giftCode-service/src/main/java/com/dken/giftCodeService/exception/GlobalExceptionHandler.java
@@ -0,0 +1,18 @@
+package com.dken.giftCodeService.exception;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+import java.util.Map;
+
+@RestControllerAdvice
+public class GlobalExceptionHandler {
+
+    @ExceptionHandler(DefaultException.class)
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    public Map<String, String> handleDefaultException(DefaultException ex) {
+        return Map.of("message", ex.getMessage());
+    }
+}
--- a/giftCode-service/src/main/java/com/dken/giftCodeService/giftCodeServiceApplication.java
+++ b/giftCode-service/src/main/java/com/dken/giftCodeService/giftCodeServiceApplication.java
@@ -0,0 +1,15 @@
+package com.dken.giftCodeService;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.data.mongodb.config.EnableMongoAuditing;
+
+@SpringBootApplication
+@EnableMongoAuditing
+public class giftCodeServiceApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(giftCodeServiceApplication.class, args);
+	}
+
+}
--- a/giftCode-service/src/main/java/com/dken/giftCodeService/model/GiftCode.java
+++ b/giftCode-service/src/main/java/com/dken/giftCodeService/model/GiftCode.java
@@ -0,0 +1,177 @@
+package com.dken.giftCodeService.model;
+
+import org.springframework.data.annotation.Id;
+import org.springframework.data.mongodb.core.mapping.Document;
+import org.springframework.data.annotation.CreatedDate;
+import org.springframework.data.annotation.LastModifiedDate;
+import org.springframework.data.mongodb.core.index.CompoundIndex;
+import org.springframework.data.mongodb.core.index.Indexed;
+
+import java.time.Instant;
+
+@Document(collection = "gift_codes")
+@CompoundIndex(def = "{'code':1, 'active':1}")
+public class GiftCode {
+
+    @Id
+    private String id;
+
+    @Indexed(unique = true)
+    private String code;
+    private boolean multiUse;
+    private boolean onePerType;
+    private String type;
+    private Integer usageLimit;
+    private Integer usageCount;
+    private Instant startAt;
+    private Instant endAt;
+    private boolean active;
+
+    @CreatedDate
+    private Instant createdAt;
+
+    @LastModifiedDate
+    private Instant updatedAt;
+
+    // ===== constructors =====
+
+    public GiftCode() {
+    }
+
+    public GiftCode(String code, boolean multiUse, boolean onePerType, String type, Integer usageLimit,
+            Instant startAt, Instant endAt) {
+        this.code = code;
+        this.multiUse = multiUse;
+        this.onePerType = onePerType;
+        this.type = type;
+        this.usageLimit = usageLimit;
+        this.usageCount = 0;
+        this.startAt = startAt;
+        this.endAt = endAt;
+        this.active = true;
+    }
+
+    // ===== business methods =====
+
+    public boolean isExpired() {
+        Instant now = Instant.now();
+        return (startAt != null && now.isBefore(startAt))
+                || (endAt != null && now.isAfter(endAt));
+    }
+
+    public boolean canUse() {
+        if (!active)
+            return false;
+        if (isExpired())
+            return false;
+
+        if (usageLimit == null)
+            return true;
+
+        return usageCount < usageLimit;
+    }
+
+    public void increaseUsage() {
+        if (!canUse()) {
+            throw new IllegalStateException("Gift code cannot be used");
+        }
+        usageCount++;
+    }
+
+    // ===== getter & setter =====
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getCode() {
+        return code;
+    }
+
+    public void setCode(String code) {
+        this.code = code;
+    }
+
+    public boolean isMultiUse() {
+        return multiUse;
+    }
+
+    public void setMultiUse(boolean multiUse) {
+        this.multiUse = multiUse;
+    }
+
+    public boolean isOnePerType() {
+        return onePerType;
+    }
+
+    public void setOnePerType(boolean onePerType) {
+        this.onePerType = onePerType;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public void setType(String type) {
+        this.type = type;
+    }
+
+    public Integer getUsageLimit() {
+        return usageLimit;
+    }
+
+    public void setUsageLimit(Integer usageLimit) {
+        this.usageLimit = usageLimit;
+    }
+
+    public Integer getUsageCount() {
+        return usageCount;
+    }
+
+    public void setUsageCount(Integer usageCount) {
+        this.usageCount = usageCount;
+    }
+
+    public Instant getStartAt() {
+        return startAt;
+    }
+
+    public void setStartAt(Instant startAt) {
+        this.startAt = startAt;
+    }
+
+    public Instant getEndAt() {
+        return endAt;
+    }
+
+    public void setEndAt(Instant endAt) {
+        this.endAt = endAt;
+    }
+
+    public boolean isActive() {
+        return active;
+    }
+
+    public void setActive(boolean active) {
+        this.active = active;
+    }
+
+    public Instant getCreatedAt() {
+        return createdAt;
+    }
+
+    public void setCreatedAt(Instant createdAt) {
+        this.createdAt = createdAt;
+    }
+
+    public Instant getUpdatedAt() {
+        return updatedAt;
+    }
+
+    public void setUpdatedAt(Instant updatedAt) {
+        this.updatedAt = updatedAt;
+    }
+}
--- a/giftCode-service/src/main/java/com/dken/giftCodeService/model/GiftCodeUsage.java
+++ b/giftCode-service/src/main/java/com/dken/giftCodeService/model/GiftCodeUsage.java
@@ -0,0 +1,67 @@
+package com.dken.giftCodeService.model;
+
+import java.time.Instant;
+
+import org.springframework.data.annotation.Id;
+import org.springframework.data.mongodb.core.index.CompoundIndex;
+import org.springframework.data.mongodb.core.index.CompoundIndexes;
+import org.springframework.data.mongodb.core.mapping.Document;
+
+@Document(collection = "gift_code_usages")
+@CompoundIndexes({
+        @CompoundIndex(name = "unique_gift_code_usages", def = "{'giftCode': 1, 'userId': 1}", unique = true),
+        @CompoundIndex(name = "unique_gift_code_usages_type", def = "{'userId': 1, 'type': 1}", unique = true)
+})
+
+public class GiftCodeUsage {
+
+    @Id
+    private String id;
+
+    private String giftCode;
+    private String type;
+    private Boolean onePerType;
+
+    public Boolean getOnePerType() {
+        return onePerType;
+    }
+
+    private String userId;
+
+    private Instant usedAt;
+
+    // ===== constructors =====
+
+    public GiftCodeUsage() {
+    }
+
+    public GiftCodeUsage(String giftCode, String type, Boolean onePerType, String userId) {
+        this.giftCode = giftCode;
+        this.type = type;
+        this.onePerType = onePerType;
+        this.userId = userId;
+        this.usedAt = Instant.now();
+    }
+
+    // ===== getter & setter =====
+
+    public String getId() {
+        return id;
+    }
+
+    public String getGiftCode() {
+        return giftCode;
+    }
+
+    public String getUserId() {
+        return userId;
+    }
+
+    public Instant getUsedAt() {
+        return usedAt;
+    }
+
+    public String getType() {
+        return type;
+    }
+}
--- a/giftCode-service/src/main/java/com/dken/giftCodeService/repository/GiftCodeRepository.java
+++ b/giftCode-service/src/main/java/com/dken/giftCodeService/repository/GiftCodeRepository.java
@@ -0,0 +1,14 @@
+
+package com.dken.giftCodeService.repository;
+
+import com.dken.giftCodeService.model.GiftCode;
+import org.springframework.data.mongodb.repository.MongoRepository;
+import org.springframework.stereotype.Repository;
+
+import java.util.Optional;
+
+@Repository
+public interface GiftCodeRepository extends MongoRepository<GiftCode, String> {
+
+    Optional<GiftCode> findByCode(String code);
+}
--- a/giftCode-service/src/main/java/com/dken/giftCodeService/repository/GiftCodeRepositoryCustom.java
+++ b/giftCode-service/src/main/java/com/dken/giftCodeService/repository/GiftCodeRepositoryCustom.java
@@ -0,0 +1,5 @@
+package com.dken.giftCodeService.repository;
+
+public interface GiftCodeRepositoryCustom {
+    boolean increaseUsageIfAvailable(String code);
+}
--- a/giftCode-service/src/main/java/com/dken/giftCodeService/repository/GiftCodeRepositoryImpl.java
+++ b/giftCode-service/src/main/java/com/dken/giftCodeService/repository/GiftCodeRepositoryImpl.java
@@ -0,0 +1,43 @@
+package com.dken.giftCodeService.repository;
+
+import com.dken.giftCodeService.model.GiftCode;
+import org.springframework.data.mongodb.core.FindAndModifyOptions;
+import org.springframework.data.mongodb.core.MongoTemplate;
+import org.springframework.data.mongodb.core.aggregation.ComparisonOperators;
+import org.springframework.data.mongodb.core.query.Criteria;
+import org.springframework.data.mongodb.core.query.Query;
+import org.springframework.data.mongodb.core.query.Update;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public class GiftCodeRepositoryImpl implements GiftCodeRepositoryCustom {
+
+    private final MongoTemplate mongoTemplate;
+
+    public GiftCodeRepositoryImpl(MongoTemplate mongoTemplate) {
+        this.mongoTemplate = mongoTemplate;
+    }
+
+    @Override
+    public boolean increaseUsageIfAvailable(String code) {
+        Query query = new Query(
+                new Criteria().andOperator(
+                        Criteria.where("code").is(code),
+                        Criteria.where("active").is(true),
+                        new Criteria().orOperator(
+                                Criteria.where("usageLimit").is(null),
+                                Criteria.expr(
+                                        ComparisonOperators.Lt.valueOf("usageCount")
+                                                .lessThan("usageLimit")))));
+
+        Update update = new Update().inc("usageCount", 1);
+
+        GiftCode updated = mongoTemplate.findAndModify(
+                query,
+                update,
+                FindAndModifyOptions.options().returnNew(true),
+                GiftCode.class);
+
+        return updated != null;
+    }
+}
--- a/giftCode-service/src/main/java/com/dken/giftCodeService/repository/GiftCodeUsageRepository.java
+++ b/giftCode-service/src/main/java/com/dken/giftCodeService/repository/GiftCodeUsageRepository.java
@@ -0,0 +1,14 @@
+package com.dken.giftCodeService.repository;
+
+import com.dken.giftCodeService.model.GiftCodeUsage;
+import org.springframework.data.mongodb.repository.MongoRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface GiftCodeUsageRepository
+        extends MongoRepository<GiftCodeUsage, String> {
+
+    boolean existsByGiftCodeAndUserId(String giftCode, String userId);
+
+    boolean existsByUserIdAndTypeAndGiftCodeNotAndOnePerTypeTrue(String userId, String type, String giftCode);
+}
--- a/giftCode-service/src/main/java/com/dken/giftCodeService/service/GiftCodeService.java
+++ b/giftCode-service/src/main/java/com/dken/giftCodeService/service/GiftCodeService.java
@@ -0,0 +1,163 @@
+package com.dken.giftCodeService.service;
+
+import com.dken.giftCodeService.model.GiftCode;
+import com.dken.giftCodeService.model.GiftCodeUsage;
+import com.dken.giftCodeService.exception.DefaultException;
+import com.dken.giftCodeService.repository.GiftCodeRepository;
+import com.dken.giftCodeService.repository.GiftCodeRepositoryImpl;
+import com.dken.giftCodeService.repository.GiftCodeUsageRepository;
+import com.dken.giftCodeService.dto.request.GiftCodeCreateRequest;
+import com.dken.giftCodeService.dto.response.GiftCodeResponse;
+import com.dken.giftCodeService.dto.response.UserApplyGiftCodeResponse;
+
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.domain.Sort;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.UUID;
+
+@Service
+public class GiftCodeService {
+
+    private final GiftCodeRepository giftCodeRepository;
+    private final GiftCodeRepositoryImpl giftCodeRepositoryImpl;
+    private final GiftCodeUsageRepository usageRepo;
+    private final RedisLockService lockService;
+
+    public GiftCodeService(GiftCodeRepository giftCodeRepository,
+            GiftCodeRepositoryImpl giftCodeRepositoryImpl,
+            GiftCodeUsageRepository usageRepo,
+            RedisLockService lockService) {
+        this.giftCodeRepository = giftCodeRepository;
+        this.giftCodeRepositoryImpl = giftCodeRepositoryImpl;
+        this.usageRepo = usageRepo;
+        this.lockService = lockService;
+    }
+
+    public Page<GiftCodeResponse> getAllGiftCodes(int page, int size) {
+
+        Pageable pageable = PageRequest.of(page, size, Sort.by("createdAt").descending());
+
+        return giftCodeRepository.findAll(pageable)
+                .map(GiftCodeResponse::from);
+    }
+
+    private static String hashType(String type) {
+        try {
+            MessageDigest digest = MessageDigest.getInstance("SHA-256");
+            byte[] hash = digest.digest(type.getBytes(StandardCharsets.UTF_8));
+
+            StringBuilder hex = new StringBuilder();
+            for (byte b : hash) {
+                hex.append(String.format("%02x", b));
+            }
+            return hex.toString();
+
+        } catch (NoSuchAlgorithmException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    String generateCode(String type) {
+        String typeHash = hashType(type).substring(0, 6);
+        String randomPart = UUID.randomUUID()
+                .toString()
+                .replace("-", "")
+                .substring(0, 16)
+                .toUpperCase();
+
+        return (typeHash + randomPart).toUpperCase();
+    }
+
+    public GiftCode create(GiftCodeCreateRequest req) {
+        if (req.getCode() == null || req.getCode().isEmpty()) {
+            String code = generateCode(req.getType());
+            req.setCode(code);
+        }
+
+        GiftCode giftCode = new GiftCode();
+        giftCode.setCode(req.getCode());
+        giftCode.setMultiUse(req.isMultiUse());
+        giftCode.setOnePerType(req.isOnePerType());
+        giftCode.setType(req.getType());
+        giftCode.setUsageLimit(req.getLimit());
+        giftCode.setUsageCount(req.getUsage());
+        giftCode.setActive(req.isActive());
+        giftCode.setStartAt(req.getStartAt());
+        giftCode.setEndAt(req.getEndAt());
+        return giftCodeRepository.save(giftCode);
+    }
+
+    public GiftCodeResponse createGiftCode(GiftCodeCreateRequest req) {
+        GiftCode giftCode = create(req);
+        return GiftCodeResponse.from(giftCode);
+    }
+
+    public GiftCodeResponse getGiftCodeByCode(String code) {
+        GiftCode giftCode = giftCodeRepository.findByCode(code)
+                .orElseThrow(() -> new RuntimeException("Gift code not found"));
+        return GiftCodeResponse.from(giftCode);
+    }
+
+    public UserApplyGiftCodeResponse applyGiftCode(String code, String userId) {
+        String lockKey = "lock:giftcode:" + code + ":user:" + userId;
+        try {
+            if (!lockService.lock(lockKey, java.time.Duration.ofSeconds(5))) {
+                throw new DefaultException("Please wait and try again");
+            }
+
+            GiftCode giftCode = giftCodeRepository.findByCode(code)
+                    .orElseThrow(() -> new RuntimeException("Gift code not found"));
+            if (!giftCode.canUse()) {
+                throw new DefaultException("Gift code is not available");
+            }
+            if (!giftCode.isMultiUse()) {
+                boolean used = usageRepo.existsByGiftCodeAndUserId(
+                        giftCode.getCode(), userId);
+
+                if (used) {
+                    throw new DefaultException("Gift code has already been used");
+                }
+            }
+            if (giftCode.isOnePerType()) {
+                boolean used = usageRepo.existsByUserIdAndTypeAndGiftCodeNotAndOnePerTypeTrue(userId,
+                        giftCode.getType(),
+                        giftCode.getCode());
+                if (used) {
+                    throw new DefaultException("Gift code has already been used");
+                }
+            }
+            effectGiftCode(giftCode, userId);
+            return new UserApplyGiftCodeResponse("Gift code applied successfully", "success", "");
+        } catch (Exception e) {
+            return new UserApplyGiftCodeResponse(
+                    e.getMessage(),
+                    "failed",
+                    "ROLLBACK");
+        } finally {
+            lockService.unlock(lockKey);
+        }
+    }
+
+    @Transactional
+    void effectGiftCode(GiftCode giftCode, String userId) {
+        boolean increased = giftCodeRepositoryImpl
+                .increaseUsageIfAvailable(giftCode.getCode());
+
+        if (!increased) {
+            throw new DefaultException("Gift code is out of limit");
+        }
+
+        GiftCodeUsage usage = new GiftCodeUsage(giftCode.getId(), giftCode.getCode(), giftCode.isOnePerType(),
+                userId);
+
+        usageRepo.save(usage);
+    }
+
+}
--- a/giftCode-service/src/main/java/com/dken/giftCodeService/service/RedisLockService.java
+++ b/giftCode-service/src/main/java/com/dken/giftCodeService/service/RedisLockService.java
@@ -0,0 +1,26 @@
+package com.dken.giftCodeService.service;
+
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.stereotype.Component;
+
+import java.time.Duration;
+
+@Component
+public class RedisLockService {
+
+    private final RedisTemplate<String, String> redis;
+
+    public RedisLockService(RedisTemplate<String, String> redis) {
+        this.redis = redis;
+    }
+
+    public boolean lock(String key, Duration ttl) {
+        return Boolean.TRUE.equals(
+                redis.opsForValue()
+                        .setIfAbsent(key, "1", ttl));
+    }
+
+    public void unlock(String key) {
+        redis.delete(key);
+    }
+}
--- a/giftCode-service/src/main/resources/application-docker.yml
+++ b/giftCode-service/src/main/resources/application-docker.yml
@@ -0,0 +1,14 @@
+server:
+  port: 8602
+
+spring:
+  application:
+    name: gift-code-service
+  data:
+    mongodb:
+      host: mongodb
+      port: 27017
+      database: gift-codedb
+    redis:
+      host: redis
+      port: 6379
--- a/giftCode-service/src/main/resources/application.yml
+++ b/giftCode-service/src/main/resources/application.yml
@@ -0,0 +1,14 @@
+server:
+  port: 8602
+
+spring:
+  application:
+    name: gift-code-service
+  data:
+    mongodb:
+      host: localhost
+      port: 27017
+      database: gift-codedb
+    redis:
+      host: localhost
+      port: 6379
--- a/giftCode-service/src/test/java/com/example/demo/DemoApplicationTests.java
+++ b/giftCode-service/src/test/java/com/example/demo/DemoApplicationTests.java
@@ -0,0 +1,13 @@
+package com.example.demo;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class DemoApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}
--- a/user-service/.gitattributes
+++ b/user-service/.gitattributes
@@ -0,0 +1,2 @@
+/mvnw text eol=lf
+*.cmd text eol=crlf
--- a/user-service/.gitignore
+++ b/user-service/.gitignore
@@ -0,0 +1,33 @@
+HELP.md
+target/
+.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
--- a/user-service/.mvn/wrapper/maven-wrapper.properties
+++ b/user-service/.mvn/wrapper/maven-wrapper.properties
@@ -0,0 +1,3 @@
+wrapperVersion=3.3.4
+distributionType=only-script
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.12/apache-maven-3.9.12-bin.zip
--- a/user-service/Dockerfile
+++ b/user-service/Dockerfile
@@ -0,0 +1,12 @@
+# ===== BUILD STAGE =====
+FROM maven:3.9-eclipse-temurin-21 AS build
+WORKDIR /build
+COPY pom.xml .
+COPY src ./src
+RUN mvn clean package -DskipTests
+
+# ===== RUN STAGE =====
+FROM eclipse-temurin:21-jre
+WORKDIR /app
+COPY --from=build /build/target/*.jar app.jar
+ENTRYPOINT ["java","-jar","app.jar"]
--- a/user-service/mvnw
+++ b/user-service/mvnw
@@ -0,0 +1,295 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Apache Maven Wrapper startup batch script, version 3.3.4
+#
+# Optional ENV vars
+# -----------------
+#   JAVA_HOME - location of a JDK home dir, required when download maven via java source
+#   MVNW_REPOURL - repo url base for downloading maven distribution
+#   MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+#   MVNW_VERBOSE - true: enable verbose log; debug: trace the mvnw script; others: silence the output
+# ----------------------------------------------------------------------------
+
+set -euf
+[ "${MVNW_VERBOSE-}" != debug ] || set -x
+
+# OS specific support.
+native_path() { printf %s\\n "$1"; }
+case "$(uname)" in
+CYGWIN* | MINGW*)
+  [ -z "${JAVA_HOME-}" ] || JAVA_HOME="$(cygpath --unix "$JAVA_HOME")"
+  native_path() { cygpath --path --windows "$1"; }
+  ;;
+esac
+
+# set JAVACMD and JAVACCMD
+set_java_home() {
+  # For Cygwin and MinGW, ensure paths are in Unix format before anything is touched
+  if [ -n "${JAVA_HOME-}" ]; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ]; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+      JAVACCMD="$JAVA_HOME/jre/sh/javac"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+      JAVACCMD="$JAVA_HOME/bin/javac"
+
+      if [ ! -x "$JAVACMD" ] || [ ! -x "$JAVACCMD" ]; then
+        echo "The JAVA_HOME environment variable is not defined correctly, so mvnw cannot run." >&2
+        echo "JAVA_HOME is set to \"$JAVA_HOME\", but \"\$JAVA_HOME/bin/java\" or \"\$JAVA_HOME/bin/javac\" does not exist." >&2
+        return 1
+      fi
+    fi
+  else
+    JAVACMD="$(
+      'set' +e
+      'unset' -f command 2>/dev/null
+      'command' -v java
+    )" || :
+    JAVACCMD="$(
+      'set' +e
+      'unset' -f command 2>/dev/null
+      'command' -v javac
+    )" || :
+
+    if [ ! -x "${JAVACMD-}" ] || [ ! -x "${JAVACCMD-}" ]; then
+      echo "The java/javac command does not exist in PATH nor is JAVA_HOME set, so mvnw cannot run." >&2
+      return 1
+    fi
+  fi
+}
+
+# hash string like Java String::hashCode
+hash_string() {
+  str="${1:-}" h=0
+  while [ -n "$str" ]; do
+    char="${str%"${str#?}"}"
+    h=$(((h * 31 + $(LC_CTYPE=C printf %d "'$char")) % 4294967296))
+    str="${str#?}"
+  done
+  printf %x\\n $h
+}
+
+verbose() { :; }
+[ "${MVNW_VERBOSE-}" != true ] || verbose() { printf %s\\n "${1-}"; }
+
+die() {
+  printf %s\\n "$1" >&2
+  exit 1
+}
+
+trim() {
+  # MWRAPPER-139:
+  #   Trims trailing and leading whitespace, carriage returns, tabs, and linefeeds.
+  #   Needed for removing poorly interpreted newline sequences when running in more
+  #   exotic environments such as mingw bash on Windows.
+  printf "%s" "${1}" | tr -d '[:space:]'
+}
+
+scriptDir="$(dirname "$0")"
+scriptName="$(basename "$0")"
+
+# parse distributionUrl and optional distributionSha256Sum, requires .mvn/wrapper/maven-wrapper.properties
+while IFS="=" read -r key value; do
+  case "${key-}" in
+  distributionUrl) distributionUrl=$(trim "${value-}") ;;
+  distributionSha256Sum) distributionSha256Sum=$(trim "${value-}") ;;
+  esac
+done <"$scriptDir/.mvn/wrapper/maven-wrapper.properties"
+[ -n "${distributionUrl-}" ] || die "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
+
+case "${distributionUrl##*/}" in
+maven-mvnd-*bin.*)
+  MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/
+  case "${PROCESSOR_ARCHITECTURE-}${PROCESSOR_ARCHITEW6432-}:$(uname -a)" in
+  *AMD64:CYGWIN* | *AMD64:MINGW*) distributionPlatform=windows-amd64 ;;
+  :Darwin*x86_64) distributionPlatform=darwin-amd64 ;;
+  :Darwin*arm64) distributionPlatform=darwin-aarch64 ;;
+  :Linux*x86_64*) distributionPlatform=linux-amd64 ;;
+  *)
+    echo "Cannot detect native platform for mvnd on $(uname)-$(uname -m), use pure java version" >&2
+    distributionPlatform=linux-amd64
+    ;;
+  esac
+  distributionUrl="${distributionUrl%-bin.*}-$distributionPlatform.zip"
+  ;;
+maven-mvnd-*) MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/ ;;
+*) MVN_CMD="mvn${scriptName#mvnw}" _MVNW_REPO_PATTERN=/org/apache/maven/ ;;
+esac
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
+[ -z "${MVNW_REPOURL-}" ] || distributionUrl="$MVNW_REPOURL$_MVNW_REPO_PATTERN${distributionUrl#*"$_MVNW_REPO_PATTERN"}"
+distributionUrlName="${distributionUrl##*/}"
+distributionUrlNameMain="${distributionUrlName%.*}"
+distributionUrlNameMain="${distributionUrlNameMain%-bin}"
+MAVEN_USER_HOME="${MAVEN_USER_HOME:-${HOME}/.m2}"
+MAVEN_HOME="${MAVEN_USER_HOME}/wrapper/dists/${distributionUrlNameMain-}/$(hash_string "$distributionUrl")"
+
+exec_maven() {
+  unset MVNW_VERBOSE MVNW_USERNAME MVNW_PASSWORD MVNW_REPOURL || :
+  exec "$MAVEN_HOME/bin/$MVN_CMD" "$@" || die "cannot exec $MAVEN_HOME/bin/$MVN_CMD"
+}
+
+if [ -d "$MAVEN_HOME" ]; then
+  verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+  exec_maven "$@"
+fi
+
+case "${distributionUrl-}" in
+*?-bin.zip | *?maven-mvnd-?*-?*.zip) ;;
+*) die "distributionUrl is not valid, must match *-bin.zip or maven-mvnd-*.zip, but found '${distributionUrl-}'" ;;
+esac
+
+# prepare tmp dir
+if TMP_DOWNLOAD_DIR="$(mktemp -d)" && [ -d "$TMP_DOWNLOAD_DIR" ]; then
+  clean() { rm -rf -- "$TMP_DOWNLOAD_DIR"; }
+  trap clean HUP INT TERM EXIT
+else
+  die "cannot create temp dir"
+fi
+
+mkdir -p -- "${MAVEN_HOME%/*}"
+
+# Download and Install Apache Maven
+verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+verbose "Downloading from: $distributionUrl"
+verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+# select .zip or .tar.gz
+if ! command -v unzip >/dev/null; then
+  distributionUrl="${distributionUrl%.zip}.tar.gz"
+  distributionUrlName="${distributionUrl##*/}"
+fi
+
+# verbose opt
+__MVNW_QUIET_WGET=--quiet __MVNW_QUIET_CURL=--silent __MVNW_QUIET_UNZIP=-q __MVNW_QUIET_TAR=''
+[ "${MVNW_VERBOSE-}" != true ] || __MVNW_QUIET_WGET='' __MVNW_QUIET_CURL='' __MVNW_QUIET_UNZIP='' __MVNW_QUIET_TAR=v
+
+# normalize http auth
+case "${MVNW_PASSWORD:+has-password}" in
+'') MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+has-password) [ -n "${MVNW_USERNAME-}" ] || MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+esac
+
+if [ -z "${MVNW_USERNAME-}" ] && command -v wget >/dev/null; then
+  verbose "Found wget ... using wget"
+  wget ${__MVNW_QUIET_WGET:+"$__MVNW_QUIET_WGET"} "$distributionUrl" -O "$TMP_DOWNLOAD_DIR/$distributionUrlName" || die "wget: Failed to fetch $distributionUrl"
+elif [ -z "${MVNW_USERNAME-}" ] && command -v curl >/dev/null; then
+  verbose "Found curl ... using curl"
+  curl ${__MVNW_QUIET_CURL:+"$__MVNW_QUIET_CURL"} -f -L -o "$TMP_DOWNLOAD_DIR/$distributionUrlName" "$distributionUrl" || die "curl: Failed to fetch $distributionUrl"
+elif set_java_home; then
+  verbose "Falling back to use Java to download"
+  javaSource="$TMP_DOWNLOAD_DIR/Downloader.java"
+  targetZip="$TMP_DOWNLOAD_DIR/$distributionUrlName"
+  cat >"$javaSource" <<-END
+	public class Downloader extends java.net.Authenticator
+	{
+	  protected java.net.PasswordAuthentication getPasswordAuthentication()
+	  {
+	    return new java.net.PasswordAuthentication( System.getenv( "MVNW_USERNAME" ), System.getenv( "MVNW_PASSWORD" ).toCharArray() );
+	  }
+	  public static void main( String[] args ) throws Exception
+	  {
+	    setDefault( new Downloader() );
+	    java.nio.file.Files.copy( java.net.URI.create( args[0] ).toURL().openStream(), java.nio.file.Paths.get( args[1] ).toAbsolutePath().normalize() );
+	  }
+	}
+	END
+  # For Cygwin/MinGW, switch paths to Windows format before running javac and java
+  verbose " - Compiling Downloader.java ..."
+  "$(native_path "$JAVACCMD")" "$(native_path "$javaSource")" || die "Failed to compile Downloader.java"
+  verbose " - Running Downloader.java ..."
+  "$(native_path "$JAVACMD")" -cp "$(native_path "$TMP_DOWNLOAD_DIR")" Downloader "$distributionUrl" "$(native_path "$targetZip")"
+fi
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+if [ -n "${distributionSha256Sum-}" ]; then
+  distributionSha256Result=false
+  if [ "$MVN_CMD" = mvnd.sh ]; then
+    echo "Checksum validation is not supported for maven-mvnd." >&2
+    echo "Please disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+    exit 1
+  elif command -v sha256sum >/dev/null; then
+    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | sha256sum -c - >/dev/null 2>&1; then
+      distributionSha256Result=true
+    fi
+  elif command -v shasum >/dev/null; then
+    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | shasum -a 256 -c >/dev/null 2>&1; then
+      distributionSha256Result=true
+    fi
+  else
+    echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available." >&2
+    echo "Please install either command, or disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+    exit 1
+  fi
+  if [ $distributionSha256Result = false ]; then
+    echo "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised." >&2
+    echo "If you updated your Maven version, you need to update the specified distributionSha256Sum property." >&2
+    exit 1
+  fi
+fi
+
+# unzip and move
+if command -v unzip >/dev/null; then
+  unzip ${__MVNW_QUIET_UNZIP:+"$__MVNW_QUIET_UNZIP"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -d "$TMP_DOWNLOAD_DIR" || die "failed to unzip"
+else
+  tar xzf${__MVNW_QUIET_TAR:+"$__MVNW_QUIET_TAR"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -C "$TMP_DOWNLOAD_DIR" || die "failed to untar"
+fi
+
+# Find the actual extracted directory name (handles snapshots where filename != directory name)
+actualDistributionDir=""
+
+# First try the expected directory name (for regular distributions)
+if [ -d "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" ]; then
+  if [ -f "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain/bin/$MVN_CMD" ]; then
+    actualDistributionDir="$distributionUrlNameMain"
+  fi
+fi
+
+# If not found, search for any directory with the Maven executable (for snapshots)
+if [ -z "$actualDistributionDir" ]; then
+  # enable globbing to iterate over items
+  set +f
+  for dir in "$TMP_DOWNLOAD_DIR"/*; do
+    if [ -d "$dir" ]; then
+      if [ -f "$dir/bin/$MVN_CMD" ]; then
+        actualDistributionDir="$(basename "$dir")"
+        break
+      fi
+    fi
+  done
+  set -f
+fi
+
+if [ -z "$actualDistributionDir" ]; then
+  verbose "Contents of $TMP_DOWNLOAD_DIR:"
+  verbose "$(ls -la "$TMP_DOWNLOAD_DIR")"
+  die "Could not find Maven distribution directory in extracted archive"
+fi
+
+verbose "Found extracted Maven distribution directory: $actualDistributionDir"
+printf %s\\n "$distributionUrl" >"$TMP_DOWNLOAD_DIR/$actualDistributionDir/mvnw.url"
+mv -- "$TMP_DOWNLOAD_DIR/$actualDistributionDir" "$MAVEN_HOME" || [ -d "$MAVEN_HOME" ] || die "fail to move MAVEN_HOME"
+
+clean || :
+exec_maven "$@"
--- a/user-service/mvnw.cmd
+++ b/user-service/mvnw.cmd
@@ -0,0 +1,189 @@
+<# : batch portion
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    http://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Apache Maven Wrapper startup batch script, version 3.3.4
+@REM
+@REM Optional ENV vars
+@REM   MVNW_REPOURL - repo url base for downloading maven distribution
+@REM   MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+@REM   MVNW_VERBOSE - true: enable verbose log; others: silence the output
+@REM ----------------------------------------------------------------------------
+
+@IF "%__MVNW_ARG0_NAME__%"=="" (SET __MVNW_ARG0_NAME__=%~nx0)
+@SET __MVNW_CMD__=
+@SET __MVNW_ERROR__=
+@SET __MVNW_PSMODULEP_SAVE=%PSModulePath%
+@SET PSModulePath=
+@FOR /F "usebackq tokens=1* delims==" %%A IN (`powershell -noprofile "& {$scriptDir='%~dp0'; $script='%__MVNW_ARG0_NAME__%'; icm -ScriptBlock ([Scriptblock]::Create((Get-Content -Raw '%~f0'))) -NoNewScope}"`) DO @(
+  IF "%%A"=="MVN_CMD" (set __MVNW_CMD__=%%B) ELSE IF "%%B"=="" (echo %%A) ELSE (echo %%A=%%B)
+)
+@SET PSModulePath=%__MVNW_PSMODULEP_SAVE%
+@SET __MVNW_PSMODULEP_SAVE=
+@SET __MVNW_ARG0_NAME__=
+@SET MVNW_USERNAME=
+@SET MVNW_PASSWORD=
+@IF NOT "%__MVNW_CMD__%"=="" ("%__MVNW_CMD__%" %*)
+@echo Cannot start maven from wrapper >&2 && exit /b 1
+@GOTO :EOF
+: end batch / begin powershell #>
+
+$ErrorActionPreference = "Stop"
+if ($env:MVNW_VERBOSE -eq "true") {
+  $VerbosePreference = "Continue"
+}
+
+# calculate distributionUrl, requires .mvn/wrapper/maven-wrapper.properties
+$distributionUrl = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionUrl
+if (!$distributionUrl) {
+  Write-Error "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
+}
+
+switch -wildcard -casesensitive ( $($distributionUrl -replace '^.*/','') ) {
+  "maven-mvnd-*" {
+    $USE_MVND = $true
+    $distributionUrl = $distributionUrl -replace '-bin\.[^.]*$',"-windows-amd64.zip"
+    $MVN_CMD = "mvnd.cmd"
+    break
+  }
+  default {
+    $USE_MVND = $false
+    $MVN_CMD = $script -replace '^mvnw','mvn'
+    break
+  }
+}
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
+if ($env:MVNW_REPOURL) {
+  $MVNW_REPO_PATTERN = if ($USE_MVND -eq $False) { "/org/apache/maven/" } else { "/maven/mvnd/" }
+  $distributionUrl = "$env:MVNW_REPOURL$MVNW_REPO_PATTERN$($distributionUrl -replace "^.*$MVNW_REPO_PATTERN",'')"
+}
+$distributionUrlName = $distributionUrl -replace '^.*/',''
+$distributionUrlNameMain = $distributionUrlName -replace '\.[^.]*$','' -replace '-bin$',''
+
+$MAVEN_M2_PATH = "$HOME/.m2"
+if ($env:MAVEN_USER_HOME) {
+  $MAVEN_M2_PATH = "$env:MAVEN_USER_HOME"
+}
+
+if (-not (Test-Path -Path $MAVEN_M2_PATH)) {
+    New-Item -Path $MAVEN_M2_PATH -ItemType Directory | Out-Null
+}
+
+$MAVEN_WRAPPER_DISTS = $null
+if ((Get-Item $MAVEN_M2_PATH).Target[0] -eq $null) {
+  $MAVEN_WRAPPER_DISTS = "$MAVEN_M2_PATH/wrapper/dists"
+} else {
+  $MAVEN_WRAPPER_DISTS = (Get-Item $MAVEN_M2_PATH).Target[0] + "/wrapper/dists"
+}
+
+$MAVEN_HOME_PARENT = "$MAVEN_WRAPPER_DISTS/$distributionUrlNameMain"
+$MAVEN_HOME_NAME = ([System.Security.Cryptography.SHA256]::Create().ComputeHash([byte[]][char[]]$distributionUrl) | ForEach-Object {$_.ToString("x2")}) -join ''
+$MAVEN_HOME = "$MAVEN_HOME_PARENT/$MAVEN_HOME_NAME"
+
+if (Test-Path -Path "$MAVEN_HOME" -PathType Container) {
+  Write-Verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+  Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
+  exit $?
+}
+
+if (! $distributionUrlNameMain -or ($distributionUrlName -eq $distributionUrlNameMain)) {
+  Write-Error "distributionUrl is not valid, must end with *-bin.zip, but found $distributionUrl"
+}
+
+# prepare tmp dir
+$TMP_DOWNLOAD_DIR_HOLDER = New-TemporaryFile
+$TMP_DOWNLOAD_DIR = New-Item -Itemtype Directory -Path "$TMP_DOWNLOAD_DIR_HOLDER.dir"
+$TMP_DOWNLOAD_DIR_HOLDER.Delete() | Out-Null
+trap {
+  if ($TMP_DOWNLOAD_DIR.Exists) {
+    try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+    catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+  }
+}
+
+New-Item -Itemtype Directory -Path "$MAVEN_HOME_PARENT" -Force | Out-Null
+
+# Download and Install Apache Maven
+Write-Verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+Write-Verbose "Downloading from: $distributionUrl"
+Write-Verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+$webclient = New-Object System.Net.WebClient
+if ($env:MVNW_USERNAME -and $env:MVNW_PASSWORD) {
+  $webclient.Credentials = New-Object System.Net.NetworkCredential($env:MVNW_USERNAME, $env:MVNW_PASSWORD)
+}
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+$webclient.DownloadFile($distributionUrl, "$TMP_DOWNLOAD_DIR/$distributionUrlName") | Out-Null
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+$distributionSha256Sum = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionSha256Sum
+if ($distributionSha256Sum) {
+  if ($USE_MVND) {
+    Write-Error "Checksum validation is not supported for maven-mvnd. `nPlease disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties."
+  }
+  Import-Module $PSHOME\Modules\Microsoft.PowerShell.Utility -Function Get-FileHash
+  if ((Get-FileHash "$TMP_DOWNLOAD_DIR/$distributionUrlName" -Algorithm SHA256).Hash.ToLower() -ne $distributionSha256Sum) {
+    Write-Error "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised. If you updated your Maven version, you need to update the specified distributionSha256Sum property."
+  }
+}
+
+# unzip and move
+Expand-Archive "$TMP_DOWNLOAD_DIR/$distributionUrlName" -DestinationPath "$TMP_DOWNLOAD_DIR" | Out-Null
+
+# Find the actual extracted directory name (handles snapshots where filename != directory name)
+$actualDistributionDir = ""
+
+# First try the expected directory name (for regular distributions)
+$expectedPath = Join-Path "$TMP_DOWNLOAD_DIR" "$distributionUrlNameMain"
+$expectedMvnPath = Join-Path "$expectedPath" "bin/$MVN_CMD"
+if ((Test-Path -Path $expectedPath -PathType Container) -and (Test-Path -Path $expectedMvnPath -PathType Leaf)) {
+  $actualDistributionDir = $distributionUrlNameMain
+}
+
+# If not found, search for any directory with the Maven executable (for snapshots)
+if (!$actualDistributionDir) {
+  Get-ChildItem -Path "$TMP_DOWNLOAD_DIR" -Directory | ForEach-Object {
+    $testPath = Join-Path $_.FullName "bin/$MVN_CMD"
+    if (Test-Path -Path $testPath -PathType Leaf) {
+      $actualDistributionDir = $_.Name
+    }
+  }
+}
+
+if (!$actualDistributionDir) {
+  Write-Error "Could not find Maven distribution directory in extracted archive"
+}
+
+Write-Verbose "Found extracted Maven distribution directory: $actualDistributionDir"
+Rename-Item -Path "$TMP_DOWNLOAD_DIR/$actualDistributionDir" -NewName $MAVEN_HOME_NAME | Out-Null
+try {
+  Move-Item -Path "$TMP_DOWNLOAD_DIR/$MAVEN_HOME_NAME" -Destination $MAVEN_HOME_PARENT | Out-Null
+} catch {
+  if (! (Test-Path -Path "$MAVEN_HOME" -PathType Container)) {
+    Write-Error "fail to move MAVEN_HOME"
+  }
+} finally {
+  try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+  catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+}
+
+Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
--- a/user-service/pom.xml
+++ b/user-service/pom.xml
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>4.0.1</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>com.dken</groupId>
+	<artifactId>user-service</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>user-service</name>
+	<description>User Service</description>
+	<url/>
+	<licenses>
+		<license/>
+	</licenses>
+	<developers>
+		<developer/>
+	</developers>
+	<scm>
+		<connection/>
+		<developerConnection/>
+		<tag/>
+		<url/>
+	</scm>
+	<properties>
+		<java.version>21</java.version>
+	</properties>
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springdoc</groupId>
+			<artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
+			<version>2.8.14</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-mongodb</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-validation</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-redis</artifactId>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>
--- a/user-service/src/main/java/com/dken/userservice/UserServiceApplication.java
+++ b/user-service/src/main/java/com/dken/userservice/UserServiceApplication.java
@@ -0,0 +1,13 @@
+package com.dken.userservice;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.data.mongodb.config.EnableMongoAuditing;
+
+@SpringBootApplication
+@EnableMongoAuditing
+public class UserServiceApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(UserServiceApplication.class, args);
+    }
+}
--- a/user-service/src/main/java/com/dken/userservice/client/GiftCodeClient.java
+++ b/user-service/src/main/java/com/dken/userservice/client/GiftCodeClient.java
@@ -0,0 +1,29 @@
+package com.dken.userservice.client;
+
+import org.springframework.web.client.RestClient;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.stereotype.Component;
+import com.dken.userservice.dto.response.UserApplyGiftCodeResponse;
+import com.dken.userservice.dto.request.GiftCodeValidateRequest;
+
+@Component
+public class GiftCodeClient {
+
+    private final RestClient restClient;
+
+    public GiftCodeClient(@Qualifier("giftCodeRestClient") RestClient restClient) {
+        this.restClient = restClient;
+    }
+
+    public UserApplyGiftCodeResponse applyGiftCode(
+            String userId,
+            String giftCode) {
+
+        return restClient
+                .post()
+                .uri("/gift-codes/apply")
+                .body(new GiftCodeValidateRequest(userId, giftCode))
+                .retrieve()
+                .body(UserApplyGiftCodeResponse.class);
+    }
+}
--- a/user-service/src/main/java/com/dken/userservice/config/GiftCodeClientConfig.java
+++ b/user-service/src/main/java/com/dken/userservice/config/GiftCodeClientConfig.java
@@ -0,0 +1,21 @@
+package com.dken.userservice.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.client.RestClient;
+import org.springframework.beans.factory.annotation.Value;
+
+@Configuration
+public class GiftCodeClientConfig {
+
+    @Bean("giftCodeRestClient")
+    public RestClient giftCodeRestClient(
+            @Value("${giftcode.service.url}") String baseUrl) {
+        return RestClient.builder()
+                .baseUrl(baseUrl)
+                .requestInterceptor((request, body, execution) -> {
+                    return execution.execute(request, body);
+                })
+                .build();
+    }
+}
--- a/user-service/src/main/java/com/dken/userservice/config/RedisConfig.java
+++ b/user-service/src/main/java/com/dken/userservice/config/RedisConfig.java
@@ -0,0 +1,22 @@
+// package com.dken.userservice.config;
+
+// import org.springframework.context.annotation.Bean;
+// import org.springframework.context.annotation.Configuration;
+// import org.springframework.data.redis.connection.RedisConnectionFactory;
+// import org.springframework.data.redis.core.RedisTemplate;
+// import org.springframework.data.redis.serializer.StringRedisSerializer;
+
+// @Configuration
+// public class RedisConfig {
+
+// @Bean
+// public RedisTemplate<String, String> redisTemplate(
+// RedisConnectionFactory factory) {
+
+// RedisTemplate<String, String> template = new RedisTemplate<>();
+// template.setConnectionFactory(factory);
+// template.setKeySerializer(new StringRedisSerializer());
+// template.setValueSerializer(new StringRedisSerializer());
+// return template;
+// }
+// }
--- a/user-service/src/main/java/com/dken/userservice/controller/UserController.java
+++ b/user-service/src/main/java/com/dken/userservice/controller/UserController.java
@@ -0,0 +1,43 @@
+package com.dken.userservice.controller;
+
+import com.dken.userservice.dto.request.CreateUserRequest;
+import com.dken.userservice.dto.request.UserApplyGiftCodeRequest;
+import com.dken.userservice.dto.response.UserApplyGiftCodeResponse;
+import com.dken.userservice.dto.response.UserResponse;
+import com.dken.userservice.service.UserService;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.domain.Page;
+import org.springframework.web.bind.annotation.*;
+import jakarta.validation.Valid;
+import jakarta.validation.constraints.Max;
+import jakarta.validation.constraints.Min;
+
+@RestController
+@RequestMapping("/users")
+public class UserController {
+
+    @Autowired
+    private UserService userService;
+
+    @PostMapping
+    public UserResponse create(@Valid @RequestBody CreateUserRequest req) {
+        return userService.createUser(req);
+    }
+
+    @GetMapping("/{id}")
+    public UserResponse getUserById(@PathVariable String id) {
+        return userService.getUserById(id);
+    }
+
+    @GetMapping
+    public Page<UserResponse> getAllUsers(@RequestParam(defaultValue = "0") @Min(0) int page,
+            @RequestParam(defaultValue = "10") @Min(1) @Max(100) int size) {
+        return userService.getAllUsers(page, size);
+    }
+
+    @PostMapping("/apply-gift-code")
+    public UserApplyGiftCodeResponse applyGiftCode(@Valid @RequestBody UserApplyGiftCodeRequest req) {
+        return userService.applyGiftCode(req);
+    }
+}
--- a/user-service/src/main/java/com/dken/userservice/dto/request/CreateUserRequest.java
+++ b/user-service/src/main/java/com/dken/userservice/dto/request/CreateUserRequest.java
@@ -0,0 +1,61 @@
+package com.dken.userservice.dto.request;
+
+import jakarta.validation.constraints.Email;
+import jakarta.validation.constraints.NotBlank;
+
+public class CreateUserRequest {
+    @NotBlank(message = "Name is required")
+    private String name;
+
+    @NotBlank(message = "Email is required")
+    @Email(message = "Email should be valid")
+    private String email;
+
+    @NotBlank(message = "Password is required")
+    private String password;
+
+    private String phone;
+
+    private String sex;
+
+    // Constructors
+    public CreateUserRequest() {
+    }
+
+    public CreateUserRequest(String name, String email, String password, String phone, String sex) {
+        this.name = name;
+        this.email = email;
+        this.password = password;
+        this.phone = phone;
+        this.sex = sex;
+    }
+
+    // Getters and Setters
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public String getPhone() {
+        return phone;
+    }
+
+    public String getSex() {
+        return sex;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+}
--- a/user-service/src/main/java/com/dken/userservice/dto/request/GiftCodeValidateRequest.java
+++ b/user-service/src/main/java/com/dken/userservice/dto/request/GiftCodeValidateRequest.java
@@ -0,0 +1,6 @@
+package com.dken.userservice.dto.request;
+
+public record GiftCodeValidateRequest(
+                String userId,
+                String giftCode) {
+}
--- a/user-service/src/main/java/com/dken/userservice/dto/request/UserApplyGiftCodeRequest.java
+++ b/user-service/src/main/java/com/dken/userservice/dto/request/UserApplyGiftCodeRequest.java
@@ -0,0 +1,27 @@
+package com.dken.userservice.dto.request;
+
+public class UserApplyGiftCodeRequest {
+    private String userId;
+    private String giftCode;
+
+    public UserApplyGiftCodeRequest(String userId, String giftCode) {
+        this.userId = userId;
+        this.giftCode = giftCode;
+    }
+
+    public String getUserId() {
+        return userId;
+    }
+
+    public void setUserId(String userId) {
+        this.userId = userId;
+    }
+
+    public String getGiftCode() {
+        return giftCode;
+    }
+
+    public void setGiftCode(String giftCode) {
+        this.giftCode = giftCode;
+    }
+}
--- a/user-service/src/main/java/com/dken/userservice/dto/response/UserApplyGiftCodeResponse.java
+++ b/user-service/src/main/java/com/dken/userservice/dto/response/UserApplyGiftCodeResponse.java
@@ -0,0 +1,37 @@
+package com.dken.userservice.dto.response;
+
+public class UserApplyGiftCodeResponse {
+    private String status;
+    private String message;
+    private String description;
+
+    public UserApplyGiftCodeResponse(String status, String message, String description) {
+        this.status = status;
+        this.message = message;
+        this.description = description;
+    }
+
+    public String getStatus() {
+        return status;
+    }
+
+    public void setStatus(String status) {
+        this.status = status;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+
+    public void setMessage(String message) {
+        this.message = message;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+}
--- a/user-service/src/main/java/com/dken/userservice/dto/response/UserResponse.java
+++ b/user-service/src/main/java/com/dken/userservice/dto/response/UserResponse.java
@@ -0,0 +1,74 @@
+package com.dken.userservice.dto.response;
+
+import com.dken.userservice.model.User;
+
+public class UserResponse {
+    private String id;
+    private String name;
+    private String email;
+    private String phone;
+
+    public String getPhone() {
+        return phone;
+    }
+
+    public void setPhone(String phone) {
+        this.phone = phone;
+    }
+
+    private String sex;
+
+    public String getSex() {
+        return sex;
+    }
+
+    public void setSex(String sex) {
+        this.sex = sex;
+    }
+
+    // Constructors
+    public UserResponse() {
+    }
+
+    public static UserResponse from(User user) {
+        return new UserResponse(
+                user.getId(),
+                user.getName(),
+                user.getEmail(),
+                user.getPhone(),
+                user.getSex() != null ? user.getSex().name() : null);
+    }
+
+    public UserResponse(String id, String name, String email, String phone, String sex) {
+        this.id = id;
+        this.name = name;
+        this.email = email;
+        this.phone = phone;
+        this.sex = sex;
+    }
+
+    // Getters and Setters
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+}
--- a/user-service/src/main/java/com/dken/userservice/exception/DefaultException.java
+++ b/user-service/src/main/java/com/dken/userservice/exception/DefaultException.java
@@ -0,0 +1,7 @@
+package com.dken.userservice.exception;
+
+public class DefaultException extends RuntimeException {
+    public DefaultException(String message) {
+        super(message);
+    }
+}
--- a/user-service/src/main/java/com/dken/userservice/exception/GlobalExceptionHandler.java
+++ b/user-service/src/main/java/com/dken/userservice/exception/GlobalExceptionHandler.java
@@ -0,0 +1,30 @@
+package com.dken.userservice.exception;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+import java.util.Map;
+
+@RestControllerAdvice
+public class GlobalExceptionHandler {
+
+    @ExceptionHandler(DefaultException.class)
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    public Map<String, String> handleDefaultException(DefaultException ex) {
+        return Map.of("message", ex.getMessage());
+    }
+
+    @ExceptionHandler(InvalidUserIdException.class)
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    public Map<String, String> handleInvalidId(InvalidUserIdException ex) {
+        return Map.of("message", ex.getMessage());
+    }
+
+    @ExceptionHandler(UserNotFoundException.class)
+    @ResponseStatus(HttpStatus.NOT_FOUND)
+    public Map<String, String> handleNotFound(UserNotFoundException ex) {
+        return Map.of("message", ex.getMessage());
+    }
+}
--- a/user-service/src/main/java/com/dken/userservice/exception/InvalidEnumException.java
+++ b/user-service/src/main/java/com/dken/userservice/exception/InvalidEnumException.java
@@ -0,0 +1,7 @@
+package com.dken.userservice.exception;
+
+public class InvalidEnumException extends RuntimeException {
+    public InvalidEnumException(String value) {
+        super("Invalid Enum value: " + value);
+    }
+}
--- a/user-service/src/main/java/com/dken/userservice/exception/InvalidUserIdException.java
+++ b/user-service/src/main/java/com/dken/userservice/exception/InvalidUserIdException.java
@@ -0,0 +1,7 @@
+package com.dken.userservice.exception;
+
+public class InvalidUserIdException extends RuntimeException {
+    public InvalidUserIdException(String id) {
+        super("Invalid user id: " + id);
+    }
+}
--- a/user-service/src/main/java/com/dken/userservice/exception/UserNotFoundException.java
+++ b/user-service/src/main/java/com/dken/userservice/exception/UserNotFoundException.java
@@ -0,0 +1,7 @@
+package com.dken.userservice.exception;
+
+public class UserNotFoundException extends RuntimeException {
+    public UserNotFoundException(String id) {
+        super("User not found with id: " + id);
+    }
+}
--- a/user-service/src/main/java/com/dken/userservice/model/User.java
+++ b/user-service/src/main/java/com/dken/userservice/model/User.java
@@ -0,0 +1,112 @@
+package com.dken.userservice.model;
+
+import org.springframework.data.annotation.Id;
+import org.springframework.data.mongodb.core.mapping.Document;
+import org.springframework.data.annotation.CreatedDate;
+import org.springframework.data.annotation.LastModifiedDate;
+
+import java.time.Instant;
+
+@Document(collection = "users")
+public class User {
+
+    @Id
+    private String id;
+
+    private String name;
+    private String password;
+
+    private String email;
+    private String phone;
+    private UserSex sex;
+
+    private UserStatus status;
+
+    @CreatedDate
+    private Instant createdAt;
+
+    @LastModifiedDate
+    private Instant updatedAt;
+
+    // ===== constructors =====
+    public User() {
+    }
+
+    public User(String name, String email, String phone, UserSex sex) {
+        this.name = name;
+        this.email = email;
+        this.phone = phone;
+        this.sex = sex;
+        this.status = UserStatus.ACTIVE;
+    }
+
+    public boolean confirmGiftCode(String giftCode) {
+        // this.giftCode = giftCode;
+        return true;
+    }
+
+    // ===== getter & setter =====
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public String getPhone() {
+        return phone;
+    }
+
+    public void setPhone(String phone) {
+        this.phone = phone;
+    }
+
+    public UserStatus getStatus() {
+        return status;
+    }
+
+    public void setStatus(UserStatus status) {
+        this.status = status;
+    }
+
+    public Instant getCreatedAt() {
+        return createdAt;
+    }
+
+    public Instant getUpdatedAt() {
+        return updatedAt;
+    }
+
+    public UserSex getSex() {
+        return sex;
+    }
+
+    public void setSex(UserSex sex) {
+        this.sex = sex;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+}
--- a/user-service/src/main/java/com/dken/userservice/model/UserSex.java
+++ b/user-service/src/main/java/com/dken/userservice/model/UserSex.java
@@ -0,0 +1,22 @@
+package com.dken.userservice.model;
+
+import com.dken.userservice.exception.InvalidEnumException;
+import com.fasterxml.jackson.annotation.JsonCreator;
+
+public enum UserSex {
+    MALE,
+    FEMALE,
+    OTHER;
+
+    @JsonCreator
+    public static UserSex from(String value) {
+        if (value == null) {
+            return null;
+        }
+        try {
+            return UserSex.valueOf(value.toUpperCase());
+        } catch (Exception e) {
+            throw new InvalidEnumException("UserSex=" + value + " is invalid");
+        }
+    }
+}
--- a/user-service/src/main/java/com/dken/userservice/model/UserStatus.java
+++ b/user-service/src/main/java/com/dken/userservice/model/UserStatus.java
@@ -0,0 +1,7 @@
+package com.dken.userservice.model;
+
+public enum UserStatus {
+    ACTIVE,
+    INACTIVE,
+    BLOCKED
+}
--- a/user-service/src/main/java/com/dken/userservice/repository/UserRepository.java
+++ b/user-service/src/main/java/com/dken/userservice/repository/UserRepository.java
@@ -0,0 +1,10 @@
+package com.dken.userservice.repository;
+
+import com.dken.userservice.model.User;
+import org.springframework.data.mongodb.repository.MongoRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface UserRepository
+        extends MongoRepository<User, String> {
+}
--- a/user-service/src/main/java/com/dken/userservice/service/RedisLockService.java
+++ b/user-service/src/main/java/com/dken/userservice/service/RedisLockService.java
@@ -0,0 +1,26 @@
+package com.dken.userservice.service;
+
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.stereotype.Component;
+
+import java.time.Duration;
+
+@Component
+public class RedisLockService {
+
+    private final RedisTemplate<String, String> redis;
+
+    public RedisLockService(RedisTemplate<String, String> redis) {
+        this.redis = redis;
+    }
+
+    public boolean lock(String key, Duration ttl) {
+        return Boolean.TRUE.equals(
+                redis.opsForValue()
+                        .setIfAbsent(key, "1", ttl));
+    }
+
+    public void unlock(String key) {
+        redis.delete(key);
+    }
+}
--- a/user-service/src/main/java/com/dken/userservice/service/UserService.java
+++ b/user-service/src/main/java/com/dken/userservice/service/UserService.java
@@ -0,0 +1,67 @@
+package com.dken.userservice.service;
+
+import com.dken.userservice.client.GiftCodeClient;
+import com.dken.userservice.dto.request.CreateUserRequest;
+import com.dken.userservice.dto.request.UserApplyGiftCodeRequest;
+import com.dken.userservice.dto.response.UserApplyGiftCodeResponse;
+import com.dken.userservice.dto.response.UserResponse;
+import com.dken.userservice.model.User;
+import com.dken.userservice.model.UserSex;
+import com.dken.userservice.repository.UserRepository;
+import com.dken.userservice.exception.InvalidUserIdException;
+
+import org.bson.types.ObjectId;
+
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Sort;
+import org.springframework.stereotype.Service;
+import org.springframework.data.domain.Pageable;
+
+@Service
+public class UserService {
+
+    private final UserRepository userRepository;
+    private final GiftCodeClient giftCodeClient;
+
+    public UserService(UserRepository userRepository, GiftCodeClient giftCodeClient) {
+        this.userRepository = userRepository;
+        this.giftCodeClient = giftCodeClient;
+    }
+
+    public Page<UserResponse> getAllUsers(int page, int size) {
+
+        Pageable pageable = PageRequest.of(page, size, Sort.by("createdAt").descending());
+
+        return userRepository.findAll(pageable)
+                .map(UserResponse::from);
+    }
+
+    public User create(String name, String email, String password, String phone, String sex) {
+        User user = new User();
+        user.setName(name);
+        user.setEmail(email);
+        user.setPassword(password);
+        user.setPhone(phone);
+        user.setSex(UserSex.from(sex));
+        return userRepository.save(user);
+    }
+
+    public UserResponse createUser(CreateUserRequest req) {
+        User user = create(req.getName(), req.getEmail(), req.getPassword(), req.getPhone(), req.getSex());
+        return UserResponse.from(user);
+    }
+
+    public UserResponse getUserById(String id) {
+        if (!ObjectId.isValid(id)) {
+            throw new InvalidUserIdException(id);
+        }
+        User user = userRepository.findById(id).orElseThrow(() -> new RuntimeException("User not found"));
+        return UserResponse.from(user);
+    }
+
+    public UserApplyGiftCodeResponse applyGiftCode(UserApplyGiftCodeRequest req) {
+        User user = userRepository.findById(req.getUserId()).orElseThrow(() -> new RuntimeException("User not found"));
+        return giftCodeClient.applyGiftCode(req.getUserId(), req.getGiftCode());
+    }
+}
--- a/user-service/src/main/resources/application-docker.yml
+++ b/user-service/src/main/resources/application-docker.yml
@@ -0,0 +1,18 @@
+server:
+  port: 8601
+
+giftcode:
+  service:
+    url: http://giftcode-service:8602
+
+spring:
+  application:
+    name: user-service
+  data:
+    mongodb:
+      host: mongodb
+      port: 27017
+      database: userdb
+    redis:
+      host: redis
+      port: 6379
--- a/user-service/src/main/resources/application.yml
+++ b/user-service/src/main/resources/application.yml
@@ -0,0 +1,16 @@
+server:
+  port: 8601
+giftcode:
+  service:
+    url: http://localhost:8602
+spring:
+  application:
+    name: user-service
+  data:
+    mongodb:
+      host: localhost
+      port: 27017
+      database: userdb
+    redis:
+      host: localhost
+      port: 6379
--- a/user-service/src/test/java/com/dken/userservice/UserServiceApplicationTests.java
+++ b/user-service/src/test/java/com/dken/userservice/UserServiceApplicationTests.java
@@ -0,0 +1,13 @@
+package com.dken.userservice;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class UserServiceApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}