diff --git a/20230107/shopping-mall/.gitignore b/20230107/shopping-mall/.gitignore
new file mode 100644
index 0000000..c2065bc
--- /dev/null
+++ b/20230107/shopping-mall/.gitignore
@@ -0,0 +1,37 @@
+HELP.md
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
diff --git a/20230107/shopping-mall/README.md b/20230107/shopping-mall/README.md
new file mode 100644
index 0000000..05895a0
--- /dev/null
+++ b/20230107/shopping-mall/README.md
@@ -0,0 +1,42 @@
+# 쇼핑몰
+
+## 기능
+
+### 주문
+
+- [ ] 상품 주문
+
+### 상품
+
+- [x] 상품 목록
+- [x] 상품 상세
+
+### 회원
+
+- [ ] 회원 가입
+- [ ] 로그인
+
+## 관리자 서버
+
+- 상품 등록
+- 상품 수정
+- 상품 삭제
+
+## 회원가입
+
+### 회원 정보 입력
+
+- 이름, 이메일, 주소, 비밀번호, 전화번호
+
+### 도메인
+
+- 이름, 이메일, 주소, 비밀번호(해시), 전화번호
+
+### 테이블
+
+- 이름, 이메일, 도시, 상세주소, 비밀번호(해시), 전화번호
+
+### 해시함수
+
+argon2를 활용해서 해보기.
+https://github.com/phxql/argon2-jvm
diff --git a/20230107/shopping-mall/build.gradle.kts b/20230107/shopping-mall/build.gradle.kts
new file mode 100644
index 0000000..fc1a3f9
--- /dev/null
+++ b/20230107/shopping-mall/build.gradle.kts
@@ -0,0 +1,50 @@
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
+plugins {
+    id("org.springframework.boot") version "2.7.7"
+    id("io.spring.dependency-management") version "1.0.15.RELEASE"
+    kotlin("jvm") version "1.6.21"
+    kotlin("plugin.spring") version "1.6.21"
+}
+
+group = "com.gringrape"
+version = "0.0.1-SNAPSHOT"
+java.sourceCompatibility = JavaVersion.VERSION_17
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation("org.springframework.boot:spring-boot-starter-validation")
+    implementation("org.springframework.boot:spring-boot-starter-web")
+    developmentOnly("org.springframework.boot:spring-boot-devtools")
+
+    implementation("org.jetbrains.exposed:exposed-kotlin-datetime:0.41.1")
+    implementation("de.mkammerer:argon2-jvm:2.11")
+    implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
+
+    implementation("org.jetbrains.kotlin:kotlin-reflect")
+    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
+
+    runtimeOnly("com.h2database:h2")
+    implementation("org.jetbrains.exposed:exposed-spring-boot-starter:0.41.1")
+
+    testImplementation("org.springframework.boot:spring-boot-starter-test")
+    testImplementation("io.kotest:kotest-runner-junit5:5.5.4")
+    testImplementation("io.kotest:kotest-assertions-core:5.5.4")
+    testImplementation("io.kotest.extensions:kotest-extensions-spring:1.1.2")
+    testImplementation("io.mockk:mockk:1.13.3")
+    testImplementation("com.ninja-squad:springmockk:4.0.0")
+}
+
+tasks.withType<KotlinCompile> {
+    kotlinOptions {
+        freeCompilerArgs = listOf("-Xjsr305=strict")
+        jvmTarget = "17"
+    }
+}
+
+tasks.withType<Test> {
+    useJUnitPlatform()
+}
diff --git a/20230107/shopping-mall/gradle/wrapper/gradle-wrapper.jar b/20230107/shopping-mall/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..249e583
Binary files /dev/null and b/20230107/shopping-mall/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/20230107/shopping-mall/gradle/wrapper/gradle-wrapper.properties b/20230107/shopping-mall/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..070cb70
--- /dev/null
+++ b/20230107/shopping-mall/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/20230107/shopping-mall/gradlew b/20230107/shopping-mall/gradlew
new file mode 100755
index 0000000..a69d9cb
--- /dev/null
+++ b/20230107/shopping-mall/gradlew
@@ -0,0 +1,240 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed 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
+#
+#      https://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.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$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
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/20230107/shopping-mall/gradlew.bat b/20230107/shopping-mall/gradlew.bat
new file mode 100644
index 0000000..53a6b23
--- /dev/null
+++ b/20230107/shopping-mall/gradlew.bat
@@ -0,0 +1,91 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/20230107/shopping-mall/settings.gradle.kts b/20230107/shopping-mall/settings.gradle.kts
new file mode 100644
index 0000000..0fa0011
--- /dev/null
+++ b/20230107/shopping-mall/settings.gradle.kts
@@ -0,0 +1 @@
+rootProject.name = "shoppingMall"
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/OrderController.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/OrderController.kt
new file mode 100644
index 0000000..70097e5
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/OrderController.kt
@@ -0,0 +1,32 @@
+package com.gringrape.shoppingMall
+
+import com.gringrape.shoppingMall.dtos.CreateOrderDto
+import com.gringrape.shoppingMall.dtos.OrderDto
+import com.gringrape.shoppingMall.dtos.OrderItemDto
+import com.gringrape.shoppingMall.service.OrderService
+import org.springframework.http.HttpStatus
+import org.springframework.web.bind.annotation.*
+
+@RestController
+@RequestMapping("/orders")
+class OrderController(
+    val orderService: OrderService
+) {
+
+    @PostMapping
+    @ResponseStatus(HttpStatus.CREATED)
+    fun create(@RequestBody source: CreateOrderDto): OrderDto {
+        val order = orderService.order(source)
+        return OrderDto(
+            id = order.id,
+            userId = order.customer.id,
+            items = order.items.map {
+                OrderItemDto(
+                    productId = it.id,
+                    quantity = it.count
+                )
+            }
+        )
+    }
+
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/ProductController.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/ProductController.kt
new file mode 100644
index 0000000..aee2863
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/ProductController.kt
@@ -0,0 +1,45 @@
+package com.gringrape.shoppingMall
+
+import com.gringrape.shoppingMall.domain.Product
+import com.gringrape.shoppingMall.dtos.ProductDto
+import com.gringrape.shoppingMall.dtos.ProductListDto
+import com.gringrape.shoppingMall.exceptions.ProductNotFoundException
+import com.gringrape.shoppingMall.service.FindProductService
+import org.springframework.http.HttpStatus
+import org.springframework.web.bind.annotation.*
+
+@RestController
+@RequestMapping("/products")
+class ProductController(
+    val findProductService: FindProductService
+) {
+
+    @GetMapping
+    fun list(): ProductListDto {
+        val products = findProductService.list()
+        return ProductListDto(
+            products.map { makeDto(it) }
+        )
+    }
+
+    @GetMapping("{id}")
+    fun detail(@PathVariable id: Long): ProductDto {
+        val product = findProductService.findOne(id)
+        return makeDto(product)
+    }
+
+    private fun makeDto(product: Product): ProductDto {
+        return ProductDto(
+            id = product.id,
+            name = product.name,
+            price = product.price
+        )
+    }
+
+    @ExceptionHandler
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    fun handleProductNotFound(exception: ProductNotFoundException): String {
+        return "Product not found"
+    }
+
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/ShoppingMallApplication.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/ShoppingMallApplication.kt
new file mode 100644
index 0000000..b769c19
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/ShoppingMallApplication.kt
@@ -0,0 +1,11 @@
+package com.gringrape.shoppingMall
+
+import org.springframework.boot.autoconfigure.SpringBootApplication
+import org.springframework.boot.runApplication
+
+@SpringBootApplication
+class ShoppingMallApplication
+
+fun main(args: Array<String>) {
+	runApplication<ShoppingMallApplication>(*args)
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/UserController.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/UserController.kt
new file mode 100644
index 0000000..f0abb54
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/UserController.kt
@@ -0,0 +1,27 @@
+package com.gringrape.shoppingMall
+
+import com.gringrape.shoppingMall.dtos.CreateUserDto
+import com.gringrape.shoppingMall.dtos.CreateUserResponseDto
+import com.gringrape.shoppingMall.service.CreateUserService
+import org.springframework.http.HttpStatus
+import org.springframework.web.bind.annotation.*
+import javax.validation.Valid
+
+@RestController
+@RequestMapping("users")
+class UserController(
+    val createUserService: CreateUserService
+) {
+
+    @PostMapping
+    @ResponseStatus(HttpStatus.CREATED)
+    fun create(@Valid @RequestBody source: CreateUserDto): CreateUserResponseDto {
+        val user = createUserService.create(source)
+        return CreateUserResponseDto(
+            id = user.id,
+            name = user.name,
+            email = user.email
+        )
+    }
+
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/Order.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/Order.kt
new file mode 100644
index 0000000..0a447d0
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/Order.kt
@@ -0,0 +1,57 @@
+package com.gringrape.shoppingMall.domain
+
+import com.gringrape.shoppingMall.exceptions.NotEnoughStockException
+import kotlinx.datetime.Clock
+import kotlinx.datetime.LocalDateTime
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.toLocalDateTime
+
+// TODO 초기 아이디로 생성되지 않도록 하기
+class Order(
+    id: Long = INITIAL_ID,
+    val customer: User,
+    val items: List<OrderItem>,
+    val date: LocalDateTime,
+) {
+    var id: Long = id
+        private set
+
+    val customerId: Long
+        get() = this.customer.id
+
+    fun register(id: Long) {
+        this.id = id
+    }
+
+    fun setItemIds(orderItemIds: List<Long>) {
+        orderItemIds.forEach {
+
+        }
+    }
+
+    companion object {
+        fun fake(): Order {
+            return Order(
+                id = 1L,
+                customer = User.fake(),
+                items = listOf(OrderItem.fake()),
+                date = Clock.System.now().toLocalDateTime(TimeZone.UTC)
+            )
+        }
+
+        fun create(user: User, orderItems: List<OrderItem>): Order {
+            if (!checkEnoughStock(orderItems)) {
+                throw NotEnoughStockException()
+            }
+            return Order(
+                customer = user,
+                items = orderItems,
+                date = Clock.System.now().toLocalDateTime(TimeZone.UTC)
+            )
+        }
+
+        private fun checkEnoughStock(orderItems: List<OrderItem>): Boolean {
+            return orderItems.any { it.checkStock() }
+        }
+    }
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/OrderItem.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/OrderItem.kt
new file mode 100644
index 0000000..4dfb7c7
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/OrderItem.kt
@@ -0,0 +1,30 @@
+package com.gringrape.shoppingMall.domain
+
+class OrderItem(
+    id: Long = INITIAL_ID,
+    orderId: Long = INITIAL_ID,
+    val product: Product,
+    val count: Int
+) {
+
+    var id = id
+    val orderId = orderId
+
+    val productId: Long
+        get() = product.id
+
+    fun checkStock(): Boolean {
+        return count <= product.stockQuantity
+    }
+    
+    companion object {
+        fun fake(): OrderItem {
+            return OrderItem(
+                id = 1L,
+                orderId = 1L,
+                product = Product.fake(),
+                count = 1
+            )
+        }
+    }
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/OrderRepository.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/OrderRepository.kt
new file mode 100644
index 0000000..4b851bb
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/OrderRepository.kt
@@ -0,0 +1,7 @@
+package com.gringrape.shoppingMall.domain
+
+interface OrderRepository {
+
+    fun save(order: Order): Order
+
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/Product.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/Product.kt
new file mode 100644
index 0000000..7cbd3be
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/Product.kt
@@ -0,0 +1,19 @@
+package com.gringrape.shoppingMall.domain
+
+class Product(
+    val id: Long,
+    val name: String,
+    val price: Long,
+    val stockQuantity: Int
+) {
+    companion object {
+        fun fake(): Product {
+            return Product(
+                id = 1L,
+                name = "dummy",
+                price = 100_000L,
+                stockQuantity = 5
+            )
+        }
+    }
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/ProductRepository.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/ProductRepository.kt
new file mode 100644
index 0000000..4d66d05
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/ProductRepository.kt
@@ -0,0 +1,8 @@
+package com.gringrape.shoppingMall.domain
+
+interface ProductRepository {
+
+    fun findAll(): List<Product>
+    fun findById(id: Long): Product?
+
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/User.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/User.kt
new file mode 100644
index 0000000..7fee75e
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/User.kt
@@ -0,0 +1,44 @@
+package com.gringrape.shoppingMall.domain
+
+import com.gringrape.shoppingMall.dtos.CreateUserDto
+import de.mkammerer.argon2.Argon2Factory
+
+const val INITIAL_ID: Long = 0L
+
+class User(
+    id: Long = INITIAL_ID,
+    val name: String,
+    val email: String,
+    val encodedPassword: String
+) {
+    var id: Long = id
+        private set
+
+    fun setId(id: Long) {
+        if (this.id != INITIAL_ID) {
+            return
+        }
+        this.id = id
+    }
+
+    companion object {
+        private val argon2 = Argon2Factory.create()
+
+        fun fake(): User {
+            return User(
+                id = 1L,
+                name = "Jin",
+                email = "kingkong@hello.world",
+                encodedPassword = ""
+            )
+        }
+
+        fun create(source: CreateUserDto): User {
+            return User(
+                name = source.name,
+                email = source.email,
+                encodedPassword = argon2.hash(10, 65536, 1, source.password.toCharArray())
+            )
+        }
+    }
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/UserRepository.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/UserRepository.kt
new file mode 100644
index 0000000..6fede16
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/domain/UserRepository.kt
@@ -0,0 +1,6 @@
+package com.gringrape.shoppingMall.domain
+
+interface UserRepository {
+    fun save(user: User)
+    fun findById(userId: Long): User?
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/CreateOrderDto.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/CreateOrderDto.kt
new file mode 100644
index 0000000..b5e1a27
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/CreateOrderDto.kt
@@ -0,0 +1,6 @@
+package com.gringrape.shoppingMall.dtos
+
+data class CreateOrderDto(
+    val userId: Long,
+    val items: List<OrderItemDto>
+)
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/CreateUserDto.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/CreateUserDto.kt
new file mode 100644
index 0000000..180b7ad
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/CreateUserDto.kt
@@ -0,0 +1,11 @@
+package com.gringrape.shoppingMall.dtos
+
+import javax.validation.constraints.NotBlank
+
+data class CreateUserDto(
+    @field:NotBlank val name: String,
+    @field:NotBlank val address: String,
+    @field:NotBlank val email: String,
+    @field:NotBlank val password: String,
+    @field:NotBlank val phone: String
+)
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/CreateUserResponseDto.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/CreateUserResponseDto.kt
new file mode 100644
index 0000000..069bd82
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/CreateUserResponseDto.kt
@@ -0,0 +1,7 @@
+package com.gringrape.shoppingMall.dtos
+
+data class CreateUserResponseDto(
+    val id: Long,
+    val name: String,
+    val email: String
+)
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/OrderDto.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/OrderDto.kt
new file mode 100644
index 0000000..e513deb
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/OrderDto.kt
@@ -0,0 +1,7 @@
+package com.gringrape.shoppingMall.dtos
+
+data class OrderDto(
+    val id: Long,
+    val userId: Long,
+    val items: List<OrderItemDto>,
+)
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/OrderItemDto.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/OrderItemDto.kt
new file mode 100644
index 0000000..8c84925
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/OrderItemDto.kt
@@ -0,0 +1,6 @@
+package com.gringrape.shoppingMall.dtos
+
+data class OrderItemDto(
+    val productId: Long,
+    val quantity: Int
+)
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/ProductDto.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/ProductDto.kt
new file mode 100644
index 0000000..06c2c69
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/ProductDto.kt
@@ -0,0 +1,7 @@
+package com.gringrape.shoppingMall.dtos
+
+data class ProductDto(
+    val id: Long,
+    val name: String,
+    val price: Long
+)
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/ProductListDto.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/ProductListDto.kt
new file mode 100644
index 0000000..3046306
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/dtos/ProductListDto.kt
@@ -0,0 +1,5 @@
+package com.gringrape.shoppingMall.dtos
+
+data class ProductListDto(
+    val products: List<ProductDto>
+)
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/exceptions/NotEnoughStockException.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/exceptions/NotEnoughStockException.kt
new file mode 100644
index 0000000..80681a8
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/exceptions/NotEnoughStockException.kt
@@ -0,0 +1,5 @@
+package com.gringrape.shoppingMall.exceptions
+
+class NotEnoughStockException : Throwable() {
+
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/exceptions/ProductNotFoundException.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/exceptions/ProductNotFoundException.kt
new file mode 100644
index 0000000..be17235
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/exceptions/ProductNotFoundException.kt
@@ -0,0 +1,3 @@
+package com.gringrape.shoppingMall.exceptions
+
+class ProductNotFoundException(id: Long) : Throwable("Product does not exists, ID:$id")
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/exceptions/UserNotFoundException.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/exceptions/UserNotFoundException.kt
new file mode 100644
index 0000000..44ef7c7
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/exceptions/UserNotFoundException.kt
@@ -0,0 +1,3 @@
+package com.gringrape.shoppingMall.exceptions
+
+class UserNotFoundException(userId: Long) : Throwable("User Not Found, User: $userId")
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/ExposedOrderRepository.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/ExposedOrderRepository.kt
new file mode 100644
index 0000000..7dd0607
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/ExposedOrderRepository.kt
@@ -0,0 +1,31 @@
+package com.gringrape.shoppingMall.infrastructure
+
+import com.gringrape.shoppingMall.domain.Order
+import com.gringrape.shoppingMall.domain.OrderRepository
+import org.jetbrains.exposed.sql.batchInsert
+import org.jetbrains.exposed.sql.insert
+import org.springframework.stereotype.Repository
+
+@Repository
+class ExposedOrderRepository : OrderRepository {
+    override fun save(order: Order): Order {
+        // 1. order 에 아이디 부여하기
+        //   - 테이블 구조를 생각해야 함. => Orders 테이블 부터 설계 => 결국 구현 이전에 설계가 대부분 결정되어야 한다는 논리.
+        // 2. order items 에 아이디 부여하기
+        // 추가고려 - order
+        val id = Orders.insert {
+            it[customerId] = order.customerId
+            it[date] = order.date
+        } get Orders.id
+
+        order.register(id)
+
+        OrderItems.batchInsert(order.items) {
+            this[OrderItems.count] = it.count
+            this[OrderItems.orderId] = id
+            this[OrderItems.productId] = it.productId
+        }
+
+        return order
+    }
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/ExposedProductRepository.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/ExposedProductRepository.kt
new file mode 100644
index 0000000..d4a3e8a
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/ExposedProductRepository.kt
@@ -0,0 +1,31 @@
+package com.gringrape.shoppingMall.infrastructure
+
+import com.gringrape.shoppingMall.domain.Product
+import com.gringrape.shoppingMall.domain.ProductRepository
+import org.jetbrains.exposed.sql.ResultRow
+import org.jetbrains.exposed.sql.select
+import org.jetbrains.exposed.sql.selectAll
+import org.springframework.stereotype.Repository
+
+@Repository
+class ExposedProductRepository : ProductRepository {
+
+    override fun findAll(): List<Product> {
+        return Products.selectAll().map { toProduct(it) }
+    }
+
+    override fun findById(id: Long): Product? {
+        return Products.select { Products.id eq id }
+            .map { toProduct(it) }.firstOrNull()
+    }
+
+    fun toProduct(row: ResultRow): Product {
+        return Product(
+            id = row[Products.id],
+            name = row[Products.name],
+            price = row[Products.price],
+            stockQuantity = row[Products.stockQuantity]
+        )
+    }
+
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/ExposedUserRepository.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/ExposedUserRepository.kt
new file mode 100644
index 0000000..bee561d
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/ExposedUserRepository.kt
@@ -0,0 +1,32 @@
+package com.gringrape.shoppingMall.infrastructure
+
+import com.gringrape.shoppingMall.domain.User
+import com.gringrape.shoppingMall.domain.UserRepository
+import org.jetbrains.exposed.sql.insert
+import org.jetbrains.exposed.sql.select
+import org.springframework.stereotype.Repository
+
+@Repository
+class ExposedUserRepository : UserRepository {
+    override fun save(user: User) {
+        val id = Users.insert {
+            it[email] = user.email
+            it[name] = user.name
+            it[encodedPassword] = user.encodedPassword
+        } get Users.id
+
+        user.setId(id)
+    }
+
+    override fun findById(userId: Long): User? {
+        return Users.select { Users.id eq userId }
+            .map {
+                User(
+                    id = it[Users.id],
+                    name = it[Users.name],
+                    email = it[Users.email],
+                    encodedPassword = it[Users.encodedPassword],
+                )
+            }.firstOrNull()
+    }
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/OrderItems.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/OrderItems.kt
new file mode 100644
index 0000000..6b489a2
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/OrderItems.kt
@@ -0,0 +1,12 @@
+package com.gringrape.shoppingMall.infrastructure
+
+import org.jetbrains.exposed.sql.Table
+
+object OrderItems : Table() {
+    val id = long("id").index().autoIncrement()
+    val orderId = long("order_id").index()
+    val productId = long("product_id").index()
+    val count = integer("count")
+
+    override val primaryKey = PrimaryKey(id)
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/Orders.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/Orders.kt
new file mode 100644
index 0000000..cc3adc6
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/Orders.kt
@@ -0,0 +1,12 @@
+package com.gringrape.shoppingMall.infrastructure
+
+import org.jetbrains.exposed.sql.Table
+import org.jetbrains.exposed.sql.kotlin.datetime.datetime
+
+object Orders : Table() {
+    val id = long("id").autoIncrement().index()
+    val customerId = long("customer_id").index()
+    val date = datetime("created_at").index()
+
+    override val primaryKey = PrimaryKey(id)
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/Products.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/Products.kt
new file mode 100644
index 0000000..e742048
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/Products.kt
@@ -0,0 +1,12 @@
+package com.gringrape.shoppingMall.infrastructure
+
+import org.jetbrains.exposed.sql.Table
+
+object Products : Table() {
+    val id = long("id").index().autoIncrement()
+    val name = varchar("name", 30).index()
+    val price = long("price")
+    val stockQuantity = integer("stock_quantity")
+
+    override val primaryKey = PrimaryKey(id)
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/Users.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/Users.kt
new file mode 100644
index 0000000..205c733
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/infrastructure/Users.kt
@@ -0,0 +1,14 @@
+package com.gringrape.shoppingMall.infrastructure
+
+import org.jetbrains.exposed.sql.Table
+
+object Users : Table() {
+    val id = long("id").index().autoIncrement()
+    val name = varchar("name", 20).index()
+    val email = varchar("email", 100).index()
+    val encodedPassword = text("encoded_password")
+//    val address = varchar("address", 100)
+//    val phone = varchar("phone", 20).index()
+
+    override val primaryKey = PrimaryKey(id)
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/service/CreateUserService.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/service/CreateUserService.kt
new file mode 100644
index 0000000..5ce34c8
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/service/CreateUserService.kt
@@ -0,0 +1,23 @@
+package com.gringrape.shoppingMall.service
+
+import com.gringrape.shoppingMall.domain.User
+import com.gringrape.shoppingMall.domain.UserRepository
+import com.gringrape.shoppingMall.dtos.CreateUserDto
+import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
+
+@Service
+@Transactional
+class CreateUserService(
+    val userRepository: UserRepository
+) {
+
+    fun create(source: CreateUserDto): User {
+        val user = User.create(source)
+
+        userRepository.save(user)
+
+        return user
+    }
+
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/service/FindProductService.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/service/FindProductService.kt
new file mode 100644
index 0000000..891f3a0
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/service/FindProductService.kt
@@ -0,0 +1,24 @@
+package com.gringrape.shoppingMall.service
+
+import com.gringrape.shoppingMall.domain.Product
+import com.gringrape.shoppingMall.domain.ProductRepository
+import com.gringrape.shoppingMall.exceptions.ProductNotFoundException
+import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
+
+@Service
+@Transactional
+class FindProductService(
+    val productRepository: ProductRepository
+) {
+
+    fun list(): List<Product> {
+        return productRepository.findAll()
+    }
+
+    fun findOne(id: Long): Product {
+        return productRepository.findById(id)
+            ?: throw ProductNotFoundException(id)
+    }
+
+}
diff --git a/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/service/OrderService.kt b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/service/OrderService.kt
new file mode 100644
index 0000000..0a7ee0d
--- /dev/null
+++ b/20230107/shopping-mall/src/main/kotlin/com/gringrape/shoppingMall/service/OrderService.kt
@@ -0,0 +1,36 @@
+package com.gringrape.shoppingMall.service
+
+import com.gringrape.shoppingMall.domain.*
+import com.gringrape.shoppingMall.dtos.CreateOrderDto
+import com.gringrape.shoppingMall.exceptions.ProductNotFoundException
+import com.gringrape.shoppingMall.exceptions.UserNotFoundException
+import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
+
+@Service
+@Transactional
+class OrderService(
+    val orderRepository: OrderRepository,
+    val userRepository: UserRepository,
+    val productRepository: ProductRepository
+) {
+
+    fun order(source: CreateOrderDto): Order {
+        val user = userRepository.findById(source.userId)
+            ?: throw UserNotFoundException(source.userId)
+
+        val orderItems = source.items.map {
+            val product: Product = productRepository.findById(it.productId)
+                ?: throw ProductNotFoundException(it.productId)
+            OrderItem(
+                product = product,
+                count = it.quantity
+            )
+        }
+
+        val order = Order.create(user, orderItems)
+
+        return orderRepository.save(order)
+    }
+
+}
diff --git a/20230107/shopping-mall/src/main/resources/application.yml b/20230107/shopping-mall/src/main/resources/application.yml
new file mode 100644
index 0000000..953a33e
--- /dev/null
+++ b/20230107/shopping-mall/src/main/resources/application.yml
@@ -0,0 +1,10 @@
+spring:
+  datasource:
+    url: jdbc:h2:mem:testdb
+    driverClassName: org.h2.Driver
+    username: sa
+    password:
+    generate-ddl: true
+  exposed:
+    generate-ddl: true
+
diff --git a/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/OrderControllerTest.kt b/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/OrderControllerTest.kt
new file mode 100644
index 0000000..f048cad
--- /dev/null
+++ b/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/OrderControllerTest.kt
@@ -0,0 +1,48 @@
+package com.gringrape.shoppingMall
+
+import com.gringrape.shoppingMall.domain.Order
+import com.gringrape.shoppingMall.service.OrderService
+import com.ninjasquad.springmockk.MockkBean
+import io.kotest.core.spec.style.DescribeSpec
+import io.mockk.every
+import org.hamcrest.core.StringContains.containsString
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest
+import org.springframework.http.MediaType
+import org.springframework.test.web.servlet.MockMvc
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post
+import org.springframework.test.web.servlet.result.MockMvcResultMatchers.content
+import org.springframework.test.web.servlet.result.MockMvcResultMatchers.status
+
+@WebMvcTest(controllers = [OrderController::class])
+class OrderControllerTest : DescribeSpec() {
+
+    @Autowired
+    lateinit var mockMvc: MockMvc
+
+    @MockkBean
+    lateinit var orderService: OrderService
+
+    init {
+        describe("POST /orders") {
+            val userId = 1L
+            val productId = 1L
+            val quantity = 3
+
+            beforeEach {
+                every { orderService.order(any()) } returns Order.fake()
+            }
+
+            it("responds with created order") {
+                mockMvc.perform(
+                    post("/orders")
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content("{\"userId\":${userId},\"items\":[{\"productId\":$productId,\"quantity\":$quantity}]}")
+                )
+                    .andExpect(status().isCreated)
+                    .andExpect(content().string(containsString("\"userId\":${userId}")))
+            }
+        }
+    }
+
+}
diff --git a/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/ProductControllerTest.kt b/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/ProductControllerTest.kt
new file mode 100644
index 0000000..4eb1e1c
--- /dev/null
+++ b/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/ProductControllerTest.kt
@@ -0,0 +1,64 @@
+package com.gringrape.shoppingMall
+
+import com.gringrape.shoppingMall.domain.Product
+import com.gringrape.shoppingMall.exceptions.ProductNotFoundException
+import com.gringrape.shoppingMall.service.FindProductService
+import com.ninjasquad.springmockk.MockkBean
+import io.kotest.core.spec.style.DescribeSpec
+import io.mockk.every
+import org.hamcrest.core.StringContains.containsString
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest
+import org.springframework.test.web.servlet.MockMvc
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get
+import org.springframework.test.web.servlet.result.MockMvcResultMatchers.content
+import org.springframework.test.web.servlet.result.MockMvcResultMatchers.status
+
+@WebMvcTest(controllers = [ProductController::class])
+class ProductControllerTest : DescribeSpec() {
+    @Autowired
+    lateinit var mockMvc: MockMvc
+
+    @MockkBean
+    lateinit var findProductService: FindProductService
+
+    init {
+        describe("GET /products") {
+            beforeEach {
+                every { findProductService.list() } returns listOf(Product.fake())
+            }
+
+            it("responds with list of products") {
+                mockMvc.perform(get("/products"))
+                    .andExpect(status().isOk)
+                    .andExpect(content().string(containsString("[{\"id\"")))
+            }
+        }
+
+        describe("GET /products/{id}") {
+            val id = 1L
+
+            context("when product exists") {
+                beforeEach {
+                    every { findProductService.findOne(id) } returns Product.fake()
+                }
+
+                it("responds with ok status") {
+                    mockMvc.perform(get("/products/$id"))
+                        .andExpect(status().isOk)
+                }
+            }
+
+            context("when product not found") {
+                beforeEach {
+                    every { findProductService.findOne(id) } throws ProductNotFoundException(id)
+                }
+
+                it("responds with BAD REQUEST status") {
+                    mockMvc.perform(get("/products/$id"))
+                        .andExpect(status().isBadRequest)
+                }
+            }
+        }
+    }
+}
diff --git a/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/ProjectConfig.kt b/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/ProjectConfig.kt
new file mode 100644
index 0000000..cda4627
--- /dev/null
+++ b/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/ProjectConfig.kt
@@ -0,0 +1,8 @@
+package com.gringrape.shoppingMall
+
+import io.kotest.core.config.AbstractProjectConfig
+import io.kotest.extensions.spring.SpringExtension
+
+class ProjectConfig : AbstractProjectConfig() {
+    override fun extensions() = listOf(SpringExtension)
+}
diff --git a/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/ShoppingMallApplicationTests.kt b/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/ShoppingMallApplicationTests.kt
new file mode 100644
index 0000000..f30f9de
--- /dev/null
+++ b/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/ShoppingMallApplicationTests.kt
@@ -0,0 +1,13 @@
+package com.gringrape.shoppingMall
+
+import org.junit.jupiter.api.Test
+import org.springframework.boot.test.context.SpringBootTest
+
+@SpringBootTest
+class ShoppingMallApplicationTests {
+
+    @Test
+    fun contextLoads() {
+    }
+    
+}
diff --git a/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/UserControllerTest.kt b/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/UserControllerTest.kt
new file mode 100644
index 0000000..2427041
--- /dev/null
+++ b/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/UserControllerTest.kt
@@ -0,0 +1,59 @@
+package com.gringrape.shoppingMall
+
+import com.gringrape.shoppingMall.domain.User
+import com.gringrape.shoppingMall.service.CreateUserService
+import com.ninjasquad.springmockk.MockkBean
+import io.kotest.core.spec.style.DescribeSpec
+import io.mockk.every
+import org.hamcrest.core.StringContains.containsString
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest
+import org.springframework.http.MediaType
+import org.springframework.test.web.servlet.MockMvc
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post
+import org.springframework.test.web.servlet.result.MockMvcResultMatchers.content
+import org.springframework.test.web.servlet.result.MockMvcResultMatchers.status
+
+@WebMvcTest(controllers = [UserController::class])
+class UserControllerTest : DescribeSpec() {
+    @Autowired
+    lateinit var mockMvc: MockMvc
+
+    @MockkBean
+    lateinit var createUserService: CreateUserService
+
+    init {
+        describe("POST /users") {
+            val name = "Jin"
+            val password = "PASS"
+            val address = "서울시 강남구 삼성동"
+            val email = "kingkong@kingkong.com"
+            val phone = "010-1234-1234"
+
+            beforeEach {
+                every { createUserService.create(any()) } returns User.fake()
+            }
+
+            it("responds with created user") {
+                mockMvc.perform(
+                    post("/users")
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content("{\"name\":\"$name\",\"password\":\"$password\",\"address\":\"$address\",\"email\":\"$email\",\"phone\":\"$phone\"}")
+                )
+                    .andExpect(status().isCreated)
+                    .andExpect(content().string(containsString("\"name\":")))
+            }
+
+            context("with blank information") {
+                it("responds with bad request status") {
+                    mockMvc.perform(
+                        post("/users")
+                            .contentType(MediaType.APPLICATION_JSON)
+                            .content("{\"name\":\"\",\"password\":\"$password\",\"address\":\"$address\",\"email\":\"$email\",\"phone\":\"$phone\"}")
+                    )
+                        .andExpect(status().isBadRequest)
+                }
+            }
+        }
+    }
+}
diff --git a/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/domain/OrderItemTest.kt b/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/domain/OrderItemTest.kt
new file mode 100644
index 0000000..d616ab4
--- /dev/null
+++ b/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/domain/OrderItemTest.kt
@@ -0,0 +1,19 @@
+package com.gringrape.shoppingMall.domain
+
+import io.kotest.core.spec.style.DescribeSpec
+import io.kotest.matchers.shouldBe
+
+class OrderItemTest : DescribeSpec({
+    describe("checkStock") {
+        it("returns whether stock quantity is enough") {
+            val stockQuantity = 100
+            val count = 5
+
+            val orderItem = OrderItem(
+                count = count,
+                product = Product(stockQuantity = stockQuantity, id = 1L, name = "ANY", price = 100)
+            )
+            orderItem.checkStock() shouldBe true
+        }
+    }
+})
diff --git a/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/service/CreateUserServiceTest.kt b/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/service/CreateUserServiceTest.kt
new file mode 100644
index 0000000..e8e8acd
--- /dev/null
+++ b/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/service/CreateUserServiceTest.kt
@@ -0,0 +1,46 @@
+package com.gringrape.shoppingMall.service
+
+import com.gringrape.shoppingMall.domain.User
+import com.gringrape.shoppingMall.domain.UserRepository
+import com.gringrape.shoppingMall.dtos.CreateUserDto
+import io.kotest.core.spec.style.DescribeSpec
+import io.mockk.every
+import io.mockk.mockk
+import io.mockk.mockkObject
+import io.mockk.verify
+
+class CreateUserServiceTest : DescribeSpec({
+
+    lateinit var createUserService: CreateUserService
+    lateinit var userRepository: UserRepository
+
+    beforeEach {
+        userRepository = mockk()
+        createUserService = CreateUserService(userRepository)
+    }
+
+    describe("create") {
+        val source = CreateUserDto(
+            name = "Jin",
+            address = "서울시 강남구 삼성동",
+            password = "PASS",
+            email = "kingkong@kingkong.com",
+            phone = "010-1234-1234"
+        )
+
+        val user = User.fake()
+
+        beforeEach {
+            mockkObject(User.Companion)
+            every { User.create(any()) } returns user
+            
+            every { userRepository.save(any()) } returns Unit
+        }
+
+        it("creates user") {
+            createUserService.create(source)
+            verify { userRepository.save(user) }
+        }
+    }
+
+})
diff --git a/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/service/FindProductServiceTest.kt b/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/service/FindProductServiceTest.kt
new file mode 100644
index 0000000..74b8b09
--- /dev/null
+++ b/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/service/FindProductServiceTest.kt
@@ -0,0 +1,61 @@
+package com.gringrape.shoppingMall.service
+
+import com.gringrape.shoppingMall.domain.Product
+import com.gringrape.shoppingMall.domain.ProductRepository
+import com.gringrape.shoppingMall.exceptions.ProductNotFoundException
+import io.kotest.assertions.throwables.shouldThrow
+import io.kotest.core.spec.style.DescribeSpec
+import io.kotest.matchers.shouldBe
+import io.mockk.every
+import io.mockk.mockk
+
+class FindProductServiceTest : DescribeSpec({
+
+    lateinit var findProductService: FindProductService
+    lateinit var productRepository: ProductRepository
+
+    beforeEach {
+        productRepository = mockk()
+        findProductService = FindProductService(productRepository)
+    }
+
+    describe("list") {
+        val products = listOf<Product>()
+
+        beforeEach {
+            every { productRepository.findAll() } returns products
+        }
+
+        it("returns products") {
+            findProductService.list() shouldBe products
+        }
+    }
+
+    describe("findOne") {
+        val id = 1L
+        val product = Product.fake()
+
+        context("when product found") {
+            beforeEach {
+                every { productRepository.findById(id) } returns product
+            }
+
+            it("returns product") {
+                findProductService.findOne(id) shouldBe product
+            }
+        }
+
+        context("when product not found") {
+            beforeEach {
+                every { productRepository.findById(id) } returns null
+            }
+
+            it("should throw exception") {
+                shouldThrow<ProductNotFoundException> {
+                    findProductService.findOne(id)
+                }
+            }
+        }
+    }
+
+})
diff --git a/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/service/OrderServiceTest.kt b/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/service/OrderServiceTest.kt
new file mode 100644
index 0000000..026a30b
--- /dev/null
+++ b/20230107/shopping-mall/src/test/kotlin/com/gringrape/shoppingMall/service/OrderServiceTest.kt
@@ -0,0 +1,81 @@
+package com.gringrape.shoppingMall.service
+
+import com.gringrape.shoppingMall.domain.*
+import com.gringrape.shoppingMall.dtos.CreateOrderDto
+import com.gringrape.shoppingMall.dtos.OrderItemDto
+import com.gringrape.shoppingMall.exceptions.NotEnoughStockException
+import io.kotest.assertions.throwables.shouldThrow
+import io.kotest.core.spec.style.DescribeSpec
+import io.kotest.matchers.shouldBe
+import io.mockk.every
+import io.mockk.mockk
+import io.mockk.verify
+
+
+class OrderServiceTest : DescribeSpec({
+
+    lateinit var orderRepository: OrderRepository
+    lateinit var orderService: OrderService
+    lateinit var userRepository: UserRepository
+    lateinit var productRepository: ProductRepository
+
+    beforeEach {
+        userRepository = mockk()
+        productRepository = mockk()
+        orderRepository = mockk()
+
+        orderService = OrderService(
+            orderRepository = orderRepository,
+            userRepository = userRepository,
+            productRepository = productRepository
+        )
+    }
+
+    describe("create") {
+        val productId = 2L
+        val quantity = 3
+
+        val source = CreateOrderDto(
+            userId = 1L,
+            items = listOf(
+                OrderItemDto(
+                    productId = productId,
+                    quantity = quantity
+                )
+            )
+        )
+
+        val user = mockk<User>()
+        val product = Product.fake()
+        val order = mockk<Order>()
+
+        beforeEach {
+            every { userRepository.findById(source.userId) } returns user
+            every { productRepository.findById(productId) } returns product
+            every { orderRepository.save(any()) } returns order
+        }
+
+        it("creates order") {
+            orderService.order(source) shouldBe order
+            verify { userRepository.findById(source.userId) }
+            verify { productRepository.findById(source.items[0].productId) }
+        }
+
+        context("with not enough stock") {
+            val item = source.items[0]
+
+            beforeEach {
+                every {
+                    productRepository.findById(item.productId)
+                } returns Product(stockQuantity = 0, id = 100L, name = "ANY", price = 1000)
+            }
+
+            it("throws exception") {
+                shouldThrow<NotEnoughStockException> {
+                    orderService.order(source)
+                }
+            }
+        }
+    }
+
+})