diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..13566b8
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/Instagram-Server-Clone.iml b/.idea/Instagram-Server-Clone.iml
new file mode 100644
index 0000000..d6ebd48
--- /dev/null
+++ b/.idea/Instagram-Server-Clone.iml
@@ -0,0 +1,9 @@
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..639900d
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..56b0f6b
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/server/.gitignore b/server/.gitignore
new file mode 100644
index 0000000..c2065bc
--- /dev/null
+++ b/server/.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/server/build.gradle b/server/build.gradle
new file mode 100644
index 0000000..8e6e05e
--- /dev/null
+++ b/server/build.gradle
@@ -0,0 +1,32 @@
+plugins {
+ id 'java'
+ id 'org.springframework.boot' version '3.3.1'
+ id 'io.spring.dependency-management' version '1.1.5'
+}
+
+group = 'instagram'
+version = '0.0.1-SNAPSHOT'
+
+java {
+ toolchain {
+ languageVersion = JavaLanguageVersion.of(17)
+ }
+}
+
+repositories {
+ mavenCentral()
+}
+
+dependencies {
+ implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
+ implementation 'org.springframework.boot:spring-boot-starter-web'
+ implementation 'org.projectlombok:lombok:1.18.28'
+ implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
+ implementation 'org.springframework.boot:spring-boot-starter-security'
+ testImplementation 'org.springframework.boot:spring-boot-starter-test'
+ testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+}
+
+tasks.named('test') {
+ useJUnitPlatform()
+}
diff --git a/server/gradle/wrapper/gradle-wrapper.jar b/server/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..e644113
Binary files /dev/null and b/server/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/server/gradle/wrapper/gradle-wrapper.properties b/server/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..a441313
--- /dev/null
+++ b/server/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/server/gradlew b/server/gradlew
new file mode 100644
index 0000000..b740cf1
--- /dev/null
+++ b/server/gradlew
@@ -0,0 +1,249 @@
+#!/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/HEAD/platforms/jvm/plugins-application/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
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+ echo "$*"
+} >&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: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+else
+ JAVACMD=java
+ if ! command -v java >/dev/null 2>&1
+ then
+ die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+ case $MAX_FD in #(
+ max*)
+ # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+ # shellcheck disable=SC2039,SC3045
+ MAX_FD=$( ulimit -H -n ) ||
+ warn "Could not query maximum file descriptor limit"
+ esac
+ case $MAX_FD in #(
+ '' | soft) :;; #(
+ *)
+ # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+ # shellcheck disable=SC2039,SC3045
+ ulimit -n "$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
+
+
+# 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"'
+
+# Collect all arguments for the java command:
+# * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+# and any embedded shellness will be escaped.
+# * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+# treated as '${Hostname}' itself on the command line.
+
+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/server/gradlew.bat b/server/gradlew.bat
new file mode 100644
index 0000000..25da30d
--- /dev/null
+++ b/server/gradlew.bat
@@ -0,0 +1,92 @@
+@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=.
+@rem This is normally unused
+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. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+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/server/settings.gradle b/server/settings.gradle
new file mode 100644
index 0000000..096502d
--- /dev/null
+++ b/server/settings.gradle
@@ -0,0 +1 @@
+rootProject.name = 'server'
diff --git a/server/src/main/java/instagram/server/ServerApplication.java b/server/src/main/java/instagram/server/ServerApplication.java
new file mode 100644
index 0000000..71c9137
--- /dev/null
+++ b/server/src/main/java/instagram/server/ServerApplication.java
@@ -0,0 +1,13 @@
+package instagram.server;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class ServerApplication {
+
+ public static void main(String[] args) {
+ SpringApplication.run(ServerApplication.class, args);
+ }
+
+}
diff --git a/server/src/main/java/instagram/server/comment/controller/CommentController.java b/server/src/main/java/instagram/server/comment/controller/CommentController.java
new file mode 100644
index 0000000..f4a153d
--- /dev/null
+++ b/server/src/main/java/instagram/server/comment/controller/CommentController.java
@@ -0,0 +1,47 @@
+package instagram.server.comment.controller;
+
+import instagram.server.comment.controller.dto.request.RegisterCommentRequest;
+import instagram.server.comment.controller.dto.request.UpdateCommentRequest;
+import instagram.server.comment.entity.Comment;
+import instagram.server.comment.service.CommentService;
+import instagram.server.user.User;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+@RequiredArgsConstructor
+@RestController
+public class CommentController {
+
+ private final CommentService commentService;
+
+ @PostMapping("/api/comments")
+ public ResponseEntity registerComment(@RequestBody RegisterCommentRequest request, @LoginUser User user) {
+ Comment savedComment = commentService.save(request, user.getId());
+
+ return ResponseEntity.status(HttpStatus.CREATED)
+ .body(savedComment);
+ }
+
+ @GetMapping("/api/comments/{commentId}")
+ public void findComment(@PathVariable long commentId) {
+ Comment comment = commentService.findComment(commentId);
+
+ }
+
+ @PutMapping("/api/comments/{commentId}")
+ public ResponseEntity updateComment(@PathVariable long id, @RequestBody UpdateCommentRequest request) {
+ Comment updatedComment = commentService.update(id, request);
+
+ return ResponseEntity.ok()
+ .body(updatedComment);
+ }
+}
diff --git a/server/src/main/java/instagram/server/comment/controller/dto/request/RegisterCommentRequest.java b/server/src/main/java/instagram/server/comment/controller/dto/request/RegisterCommentRequest.java
new file mode 100644
index 0000000..76da085
--- /dev/null
+++ b/server/src/main/java/instagram/server/comment/controller/dto/request/RegisterCommentRequest.java
@@ -0,0 +1,20 @@
+package instagram.server.comment.controller.dto.request;
+
+
+import instagram.server.comment.entity.Comment;
+import instagram.server.user.User;
+import lombok.Getter;
+
+@Getter
+public class RegisterCommentRequest {
+
+ private User user;
+ private String content;
+
+ public Comment toEntity(User user) {
+ return comment.builder()
+ .user(user)
+ .content(content)
+ .build();
+ }
+}
diff --git a/server/src/main/java/instagram/server/comment/controller/dto/request/UpdateCommentRequest.java b/server/src/main/java/instagram/server/comment/controller/dto/request/UpdateCommentRequest.java
new file mode 100644
index 0000000..7a4a55f
--- /dev/null
+++ b/server/src/main/java/instagram/server/comment/controller/dto/request/UpdateCommentRequest.java
@@ -0,0 +1,12 @@
+package instagram.server.comment.controller.dto.request;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@AllArgsConstructor
+@NoArgsConstructor
+@Getter
+public class UpdateCommentRequest {
+ private String content;
+}
diff --git a/server/src/main/java/instagram/server/comment/controller/dto/response/CommentDto.java b/server/src/main/java/instagram/server/comment/controller/dto/response/CommentDto.java
new file mode 100644
index 0000000..afbc693
--- /dev/null
+++ b/server/src/main/java/instagram/server/comment/controller/dto/response/CommentDto.java
@@ -0,0 +1,29 @@
+package instagram.server.comment.controller.dto.response;
+
+import instagram.server.comment.entity.Comment;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.time.LocalDateTime;
+
+@Getter
+ public class CommentDto {
+ private final Long commentId;
+ private final String content;
+ private final LocalDateTime createdAt;
+
+ @Builder
+ private CommentDto(Long commentId, String content, LocalDateTime createdAt) {
+ this.commentId = commentId;
+ this.content = content;
+ this.createdAt = createdAt;
+ }
+
+ public static CommentDto of(Comment comment) {
+ return CommentDto.builder()
+ .commentId(comment.getId())
+ .content(comment.getContent())
+ .createdAt(comment.getCreatedAt())
+ .build();
+ }
+}
diff --git a/server/src/main/java/instagram/server/comment/controller/dto/response/CommentResponse.java b/server/src/main/java/instagram/server/comment/controller/dto/response/CommentResponse.java
new file mode 100644
index 0000000..434f248
--- /dev/null
+++ b/server/src/main/java/instagram/server/comment/controller/dto/response/CommentResponse.java
@@ -0,0 +1,22 @@
+package instagram.server.comment.controller.dto.response;
+
+import instagram.server.comment.entity.Comment;
+import lombok.Builder;
+
+import java.util.List;
+
+@Builder
+public class CommentResponse {
+ private final String content;
+
+ @Builder
+ public CommentResponse(String content) {
+ this.content = content;
+ }
+
+ public static CommentResponse from(Comment comment) {
+ return CommentResponse.builder()
+ .content(comment.getContent())
+ .build();
+ }
+}
diff --git a/server/src/main/java/instagram/server/comment/entity/Comment.java b/server/src/main/java/instagram/server/comment/entity/Comment.java
new file mode 100644
index 0000000..7f3002e
--- /dev/null
+++ b/server/src/main/java/instagram/server/comment/entity/Comment.java
@@ -0,0 +1,42 @@
+package instagram.server.comment.entity;
+
+import instagram.server.user.User;
+import jakarta.persistence.CascadeType;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.OneToMany;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.util.ArrayList;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class Comment{
+
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ @Column(name = "comment_id")
+ private Long id;
+
+ private String content;
+
+ @ManyToOne(fetch = FetchType.LAZY)
+ @JoinColumn(name = "user_id")
+ private User user;
+
+ @Builder
+ private Comment(final String content, final User user) {
+ this.user = user;
+ this.content = content;
+ }
+}
diff --git a/server/src/main/java/instagram/server/comment/repository/CommentRepository.java b/server/src/main/java/instagram/server/comment/repository/CommentRepository.java
new file mode 100644
index 0000000..7ea9db1
--- /dev/null
+++ b/server/src/main/java/instagram/server/comment/repository/CommentRepository.java
@@ -0,0 +1,13 @@
+package instagram.server.comment.repository;
+
+import instagram.server.comment.entity.Comment;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.List;
+import java.util.Optional;
+
+public interface CommentRepository extends JpaRepository {
+ List findAllBy();
+
+ Optional findById(Long commentId);
+}
diff --git a/server/src/main/java/instagram/server/comment/service/CommentService.java b/server/src/main/java/instagram/server/comment/service/CommentService.java
new file mode 100644
index 0000000..4c912b3
--- /dev/null
+++ b/server/src/main/java/instagram/server/comment/service/CommentService.java
@@ -0,0 +1,39 @@
+package instagram.server.comment.service;
+
+import instagram.server.comment.controller.dto.request.RegisterCommentRequest;
+import instagram.server.comment.controller.dto.request.UpdateCommentRequest;
+import instagram.server.comment.entity.Comment;
+import instagram.server.comment.repository.CommentRepository;
+import instagram.server.user.UserService;
+import jakarta.transaction.Transactional;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+@RequiredArgsConstructor
+@Service
+@Transactional
+public class CommentService {
+
+ private final CommentRepository commentitory;
+ private final UserService userService;
+
+ public Comment save(RegisterCommentRequest registerCommentRequest, Long userId) {
+ Comment comment = registerCommentRequest.toEntity(userService.findUser(userId));
+ return commentRepository.save(comment);
+ }
+
+ public Comment findComment(long id) {
+ return commentRepository.findById(id)
+ .orElseThrow(() -> new IllegalArgumentException("not found : " + id));
+ }
+
+ @Transactional
+ public Comment update(long id, UpdateCommentRequest request) {
+ Comment comment = commentRepository.findById(id)
+ .orElseThrow(() -> new IllegalArgumentException("not found : " + id));
+
+ comment.update(request.getContent());
+
+ return comment;
+ }
+}
diff --git a/server/src/main/java/instagram/server/like/controller/LikeController.java b/server/src/main/java/instagram/server/like/controller/LikeController.java
new file mode 100644
index 0000000..e0a0162
--- /dev/null
+++ b/server/src/main/java/instagram/server/like/controller/LikeController.java
@@ -0,0 +1,45 @@
+package instagram.server.like.controller;
+
+import instagram.server.like.entity.Like;
+import instagram.server.like.service.LikeService;
+import instagram.server.post.controller.dto.request.UpdatePostRequest;
+import instagram.server.post.entity.Post;
+import instagram.server.user.User;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+
+@RequiredArgsConstructor
+@RestController
+public class LikeController {
+
+ private final LikeService likeService;
+
+ @PostMapping("/api/likes")
+ public ResponseEntity registerLike(@RequestBody RegisterLikeRequest request, @LoginUser User user) {
+ Like savedLike = likeService.save(request, user.getId());
+
+ return ResponseEntity.status(HttpStatus.CREATED)
+ .body(savedLike);
+ }
+
+ @GetMapping("/api/likes/{likeId}")
+ public void findPost(@PathVariable long postId) {
+ Post post = postService.findPosts(postId);
+
+ }
+
+ @PutMapping("/api/posts/{postId}")
+ public ResponseEntity updatePost(@PathVariable long postId, @RequestBody UpdatePostRequest request) {
+ Post updatedPost = postService.update(postId, request);
+
+ return ResponseEntity.ok()
+ .body(updatedPost);
+ }
+}
diff --git a/server/src/main/java/instagram/server/like/controller/dto/response/LikeDto.java b/server/src/main/java/instagram/server/like/controller/dto/response/LikeDto.java
new file mode 100644
index 0000000..6164bc5
--- /dev/null
+++ b/server/src/main/java/instagram/server/like/controller/dto/response/LikeDto.java
@@ -0,0 +1,28 @@
+package instagram.server.like.controller.dto.response;
+
+import instagram.server.like.entity.Like;
+import instagram.server.post.controller.dto.response.PostDto;
+import instagram.server.post.entity.Post;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.time.LocalDateTime;
+
+@Getter
+public class LikeDto {
+ private final Long like;
+ private final Long post;
+
+ @Builder
+ private LikeDto(Long like, Long post) {
+ this.like = like;
+ this.post = post;
+ }
+
+ public static LikeDto of(Like like) {
+ return LikeDto.builder()
+ .like(like.getId())
+ .post(like.getId())
+ .build();
+ }
+}
\ No newline at end of file
diff --git a/server/src/main/java/instagram/server/like/entity/Like.java b/server/src/main/java/instagram/server/like/entity/Like.java
new file mode 100644
index 0000000..7e6baac
--- /dev/null
+++ b/server/src/main/java/instagram/server/like/entity/Like.java
@@ -0,0 +1,34 @@
+package instagram.server.like.entity;
+
+import instagram.server.post.entity.Post;
+import instagram.server.user.User;
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class Like {
+
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ @Column(name = "like_id")
+ private Long id;
+
+ @ManyToOne(fetch = FetchType.LAZY)
+ @JoinColumn(name = "post_id")
+ private Post post;
+
+ @ManyToOne(fetch = FetchType.LAZY)
+ @JoinColumn(name = "user_id")
+ private User user;
+
+ @Builder
+ private Like(final Post post, final User user) {
+ this.post = post;
+ this.user = user;
+ }
+}
\ No newline at end of file
diff --git a/server/src/main/java/instagram/server/like/repository/LikeRepository.java b/server/src/main/java/instagram/server/like/repository/LikeRepository.java
new file mode 100644
index 0000000..baf8e90
--- /dev/null
+++ b/server/src/main/java/instagram/server/like/repository/LikeRepository.java
@@ -0,0 +1,13 @@
+package instagram.server.like.repository;
+
+import java.util.Optional;
+
+import instagram.server.like.entity.Like;
+import instagram.server.post.entity.Post;
+import instagram.server.user.User;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface LikeRepository extends JpaRepository {
+
+ Optional findByUserAndPost(final User user, final Post post);
+}
\ No newline at end of file
diff --git a/server/src/main/java/instagram/server/like/service/LikeService.java b/server/src/main/java/instagram/server/like/service/LikeService.java
new file mode 100644
index 0000000..046af33
--- /dev/null
+++ b/server/src/main/java/instagram/server/like/service/LikeService.java
@@ -0,0 +1,61 @@
+package instagram.server.like.service;
+
+import instagram.server.like.controller.dto.response.LikeDto;
+import instagram.server.like.entity.Like;
+import instagram.server.like.repository.LikeRepository;
+import instagram.server.post.entity.Post;
+import instagram.server.post.repository.PostRepository;
+import instagram.server.user.User;
+import instagram.server.user.UserRepository;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import lombok.RequiredArgsConstructor;
+
+@Service
+@Transactional
+@RequiredArgsConstructor
+public class LikeService {
+
+ private final UserRepository userRepository;
+ private final PostRepository postRepository;
+ private final LikeRepository likeRepository;
+
+ public void insert(LikeDto likeDto, Long userId) {
+ User user = userRepository.findById(userId)
+ .orElseThrow(() -> new IllegalArgumentException("[Error] 사용자를 찾을 수 없습니다."));
+ Post post = postRepository.findById(likeDto.getPostId())
+ .orElseThrow(() -> new IllegalArgumentException("[Error] 게시물을 찾을 수 없습니다."));
+
+ if (likeRepository.findByUserAndPost(user, post).isPresent()) {
+ throw new IllegalArgumentException("[Error] 이미 좋아요가 눌려있는 상태입니다.");
+ }
+
+ Like like = Like.builder()
+ .post(post)
+ .user(user)
+ .build();
+
+ int likeCount = post.getLikeCount();
+ postRepository.save(like);
+ post.updateLikeCount(++likeCount);
+ }
+
+ public void delete(LikeDto likeDto, Long userId) {
+ User user = userRepository.findById(userId)
+ .orElseThrow(() -> new IllegalArgumentException("[Error] 사용자를 찾을 수 없습니다."));
+ Post post = postRepository.findById(likeDto.getPostId())
+ .orElseThrow(() -> new IllegalArgumentException("[Error] 게시물을 찾을 수 없습니다."));
+
+ Like like = likeRepository.findByUserAndPost(user, post)
+ .orElseThrow(() -> new IllegalArgumentException("[Error] 좋아요를 찾을 수 없습니다."));
+
+ int likeCount = post.getLikeCount();
+ likeRepository.delete(like);
+ post.updateLikeCount(--likeCount);
+ }
+
+ public boolean isLiked(User user, Post post) {
+ return likeRepository.findByUserAndPost(user, post).isPresent();
+ }
+}
\ No newline at end of file
diff --git a/server/src/main/java/instagram/server/post/controller/PostController.java b/server/src/main/java/instagram/server/post/controller/PostController.java
new file mode 100644
index 0000000..e02863c
--- /dev/null
+++ b/server/src/main/java/instagram/server/post/controller/PostController.java
@@ -0,0 +1,45 @@
+package instagram.server.post.controller;
+
+import instagram.server.post.controller.dto.request.RegisterPostRequest;
+import instagram.server.post.controller.dto.request.UpdatePostRequest;
+import instagram.server.post.entity.Post;
+import instagram.server.post.service.PostService;
+import instagram.server.user.User;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+
+@RequiredArgsConstructor
+@RestController
+public class PostController {
+
+ private final PostService postService;
+
+ @PostMapping("/api/posts")
+ public ResponseEntity registerPost(@RequestBody RegisterPostRequest request, @LoginUser User user) {
+ Post savedPost = postService.save(request, user.getId());
+
+ return ResponseEntity.status(HttpStatus.CREATED)
+ .body(savedPost);
+ }
+
+ @GetMapping("/api/posts/{postId}")
+ public void findPost(@PathVariable long postId) {
+ Post post = postService.findPosts(postId);
+
+ }
+
+ @PutMapping("/api/posts/{postId}")
+ public ResponseEntity updatePost(@PathVariable long postId, @RequestBody UpdatePostRequest request) {
+ Post updatedPost = postService.update(postId, request);
+
+ return ResponseEntity.ok()
+ .body(updatedPost);
+ }
+}
diff --git a/server/src/main/java/instagram/server/post/controller/dto/request/RegisterPostRequest.java b/server/src/main/java/instagram/server/post/controller/dto/request/RegisterPostRequest.java
new file mode 100644
index 0000000..b497c74
--- /dev/null
+++ b/server/src/main/java/instagram/server/post/controller/dto/request/RegisterPostRequest.java
@@ -0,0 +1,22 @@
+package instagram.server.post.controller.dto.request;
+
+import instagram.server.post.entity.Post;
+import instagram.server.user.User;
+import lombok.Getter;
+
+
+@Getter
+public class RegisterPostRequest {
+
+ private User userId;
+ private String title;
+ private String content;
+
+ public Post toEntity(User userId) {
+ return Post.builder()
+ .user(userId)
+ .title(title)
+ .content(content)
+ .build();
+ }
+}
diff --git a/server/src/main/java/instagram/server/post/controller/dto/request/UpdatePostRequest.java b/server/src/main/java/instagram/server/post/controller/dto/request/UpdatePostRequest.java
new file mode 100644
index 0000000..607b0fc
--- /dev/null
+++ b/server/src/main/java/instagram/server/post/controller/dto/request/UpdatePostRequest.java
@@ -0,0 +1,13 @@
+package instagram.server.post.controller.dto.request;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@AllArgsConstructor
+@NoArgsConstructor
+@Getter
+public class UpdatePostRequest {
+ private String title;
+ private String content;
+}
diff --git a/server/src/main/java/instagram/server/post/controller/dto/response/PostDto.java b/server/src/main/java/instagram/server/post/controller/dto/response/PostDto.java
new file mode 100644
index 0000000..5edcb30
--- /dev/null
+++ b/server/src/main/java/instagram/server/post/controller/dto/response/PostDto.java
@@ -0,0 +1,32 @@
+package instagram.server.post.controller.dto.response;
+
+import instagram.server.post.entity.Post;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.time.LocalDateTime;
+
+@Getter
+public class PostDto {
+ private final Long post;
+ private final String title;
+ private final String content;
+ private final LocalDateTime createdAt;
+
+ @Builder
+ private PostDto(Long post, String title, String content, LocalDateTime createdAt) {
+ this.post = post;
+ this.title = title;
+ this.content = content;
+ this.createdAt = createdAt;
+ }
+
+ public static PostDto of(Post post) {
+ return PostDto.builder()
+ .post(post.getId())
+ .title(post.getTitle())
+ .content(post.getContent())
+ .createdAt(post.getCreatedAt())
+ .build();
+ }
+}
diff --git a/server/src/main/java/instagram/server/post/controller/dto/response/PostResponse.java b/server/src/main/java/instagram/server/post/controller/dto/response/PostResponse.java
new file mode 100644
index 0000000..fc18d5e
--- /dev/null
+++ b/server/src/main/java/instagram/server/post/controller/dto/response/PostResponse.java
@@ -0,0 +1,23 @@
+package instagram.server.post.controller.dto.response;
+
+import instagram.server.post.entity.Post;
+import lombok.Builder;
+
+@Builder
+public class PostResponse {
+ private final String title;
+ private final String content;
+
+ @Builder
+ public PostResponse(String title, String content) {
+ this.title = title;
+ this.content = content;
+ }
+
+ public static PostResponse from(Post post) {
+ return PostResponse.builder()
+ .title(post.getTitle())
+ .content(post.getContent())
+ .build();
+ }
+}
diff --git a/server/src/main/java/instagram/server/post/entity/Post.java b/server/src/main/java/instagram/server/post/entity/Post.java
new file mode 100644
index 0000000..d87574c
--- /dev/null
+++ b/server/src/main/java/instagram/server/post/entity/Post.java
@@ -0,0 +1,48 @@
+package instagram.server.post.entity;
+
+import instagram.server.user.User;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalDateTime;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class Post {
+
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ @Column(name = "postId")
+ private Long id;
+
+ @ManyToOne(fetch = FetchType.LAZY)
+ @JoinColumn(name = "user_id") // user_id를 외래 키로 사용
+ private User user;
+
+ private String title;
+ private String content;
+
+ @Builder
+ private Post(User user, String title, String content) {
+ this.user = user;
+ this.title = title;
+ this.content = content;
+ }
+
+ public void update(String title, String content) {
+ this.title = title;
+ this.content = content;
+ }
+
+}
diff --git a/server/src/main/java/instagram/server/post/repository/PostRepository.java b/server/src/main/java/instagram/server/post/repository/PostRepository.java
new file mode 100644
index 0000000..63fed7c
--- /dev/null
+++ b/server/src/main/java/instagram/server/post/repository/PostRepository.java
@@ -0,0 +1,12 @@
+package instagram.server.post.repository;
+
+import instagram.server.post.entity.Post;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.List;
+import java.util.Optional;
+
+public interface PostRepository extends JpaRepository {
+
+ Optional findById(Long postId);
+}
diff --git a/server/src/main/java/instagram/server/post/service/PostService.java b/server/src/main/java/instagram/server/post/service/PostService.java
new file mode 100644
index 0000000..6841b42
--- /dev/null
+++ b/server/src/main/java/instagram/server/post/service/PostService.java
@@ -0,0 +1,39 @@
+package instagram.server.post.service;
+
+import instagram.server.post.controller.dto.request.RegisterPostRequest;
+import instagram.server.post.controller.dto.request.UpdatePostRequest;
+import instagram.server.post.entity.Post;
+import instagram.server.post.repository.PostRepository;
+import instagram.server.user.UserService;
+import jakarta.transaction.Transactional;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+@RequiredArgsConstructor
+@Service
+@Transactional
+public class PostService {
+
+ private final PostRepository postRepository;
+ private final UserService userService;
+
+ public Post save(RegisterPostRequest registerPostRequest, String username) {
+ Post post = registerPostRequest.toEntity(userService.findUser(username));
+ return postRepository.save(post);
+ }
+
+ public Post findPosts(long id) {
+ return postRepository.findById(id)
+ .orElseThrow(() -> new IllegalArgumentException("not found : " + id));
+ }
+
+ @Transactional
+ public Post update(long id, UpdatePostRequest request) {
+ Post post = postRepository.findById(id)
+ .orElseThrow(() -> new IllegalArgumentException("not found : " + id));
+
+ post.update(request.getTitle(), request.getContent());
+
+ return post;
+ }
+}
diff --git a/server/src/main/java/instagram/server/user/AuthController.java b/server/src/main/java/instagram/server/user/AuthController.java
new file mode 100644
index 0000000..df85c23
--- /dev/null
+++ b/server/src/main/java/instagram/server/user/AuthController.java
@@ -0,0 +1,37 @@
+package instagram.server.user;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.authentication.AuthenticationManager;
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/auth")
+public class AuthController {
+
+ @Autowired
+ private AuthenticationManager authenticationManager;
+
+ @Autowired
+ private JwtTokenProvider tokenProvider;
+
+ @Autowired
+ private UserService userService;
+
+ @PostMapping("/register")
+ public User registerUser(@RequestBody User user) {
+ return userService.registerUser(user.getUsername(), user.getPassword());
+ }
+
+ @PostMapping("/login")
+ public String authenticateUser(@RequestBody User user) {
+ Authentication authentication = authenticationManager.authenticate(
+ new UsernamePasswordAuthenticationToken(user.getUsername(), user.getPassword()));
+
+ SecurityContextHolder.getContext().setAuthentication(authentication);
+
+ return tokenProvider.generateToken(authentication);
+ }
+}
diff --git a/server/src/main/java/instagram/server/user/CustomUserDetailsService.java b/server/src/main/java/instagram/server/user/CustomUserDetailsService.java
new file mode 100644
index 0000000..2e3f95a
--- /dev/null
+++ b/server/src/main/java/instagram/server/user/CustomUserDetailsService.java
@@ -0,0 +1,22 @@
+package instagram.server.user;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.core.userdetails.UsernameNotFoundException;
+import org.springframework.stereotype.Service;
+
+import java.util.ArrayList;
+
+@Service
+public class CustomUserDetailsService implements UserDetailsService {
+ @Autowired
+ private UserRepository userRepository;
+
+ @Override
+ public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
+ User user = userRepository.findByUsername(username)
+ .orElseThrow(() -> new UsernameNotFoundException("User not found"));
+ return new org.springframework.security.core.userdetails.User(user.getUsername(), user.getPassword(), new ArrayList<>());
+ }
+}
diff --git a/server/src/main/java/instagram/server/user/JwtAuthenticationFilter.java b/server/src/main/java/instagram/server/user/JwtAuthenticationFilter.java
new file mode 100644
index 0000000..4b05270
--- /dev/null
+++ b/server/src/main/java/instagram/server/user/JwtAuthenticationFilter.java
@@ -0,0 +1,53 @@
+package instagram.server.user;
+
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
+import org.springframework.stereotype.Component;
+import org.springframework.web.filter.OncePerRequestFilter;
+
+import java.io.IOException;
+
+@Component
+public class JwtAuthenticationFilter extends OncePerRequestFilter {
+
+ @Autowired
+ private JwtTokenProvider tokenProvider;
+
+ @Autowired
+ private UserDetailsService customUserDetailsService;
+
+ @Override
+ protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)
+ throws ServletException, IOException {
+
+ String jwt = getJwtFromRequest(request);
+
+ if (jwt != null && tokenProvider.validateToken(jwt)) {
+ String username = tokenProvider.getUsernameFromJWT(jwt);
+
+ UserDetails userDetails = customUserDetailsService.loadUserByUsername(username);
+ UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(userDetails, null, userDetails.getAuthorities());
+ authentication.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
+
+ SecurityContextHolder.getContext().setAuthentication(authentication);
+ }
+
+ filterChain.doFilter(request, response);
+ }
+
+ private String getJwtFromRequest(HttpServletRequest request) {
+ String bearerToken = request.getHeader("Authorization");
+ if (bearerToken != null && bearerToken.startsWith("Bearer ")) {
+ return bearerToken.substring(7);
+ }
+ return null;
+ }
+}
diff --git a/server/src/main/java/instagram/server/user/JwtTokenProvider.java b/server/src/main/java/instagram/server/user/JwtTokenProvider.java
new file mode 100644
index 0000000..b6ffe7e
--- /dev/null
+++ b/server/src/main/java/instagram/server/user/JwtTokenProvider.java
@@ -0,0 +1,47 @@
+package instagram.server.user;
+
+import org.apache.tomcat.util.net.openssl.ciphers.Authentication;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+
+import java.security.SignatureException;
+import java.util.Date;
+
+@Component
+public class JwtTokenProvider {
+ @Value("${app.jwtSecret}")
+ private String jwtSecret;
+
+ @Value("${app.jwtExpirationMs}")
+ private int jwtExpirationMs;
+
+ public String generateToken(Authentication authentication) {
+ String username = authentication.getName();
+ Date now = new Date();
+ Date expiryDate = new Date(now.getTime() + jwtExpirationMs);
+
+ return Jwts.builder()
+ .setSubject(username)
+ .setIssuedAt(new Date())
+ .setExpiration(expiryDate)
+ .signWith(SignatureAlgorithm.HS512, jwtSecret)
+ .compact();
+ }
+
+ public String getUsernameFromJWT(String token) {
+ return Jwts.parser()
+ .setSigningKey(jwtSecret)
+ .parseClaimsJws(token)
+ .getBody()
+ .getSubject();
+ }
+
+ public boolean validateToken(String authToken) {
+ try {
+ Jwts.parser().setSigningKey(jwtSecret).parseClaimsJws(authToken);
+ return true;
+ } catch (SignatureException | MalformedJwtException | ExpiredJwtException | UnsupportedJwtException | IllegalArgumentException ex) {
+ return false;
+ }
+ }
+}
diff --git a/server/src/main/java/instagram/server/user/SecurityConfig.java b/server/src/main/java/instagram/server/user/SecurityConfig.java
new file mode 100644
index 0000000..d3fa20f
--- /dev/null
+++ b/server/src/main/java/instagram/server/user/SecurityConfig.java
@@ -0,0 +1,53 @@
+package instagram.server.user;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.authentication.AuthenticationManager;
+import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.security.config.http.SessionCreationPolicy;
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+import org.springframework.security.crypto.password.PasswordEncoder;
+import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
+
+@Configuration
+@EnableWebSecurity
+public class SecurityConfig extends WebSecurityConfigurerAdapter {
+
+ @Autowired
+ private CustomUserDetailsService customUserDetailsService;
+
+ @Autowired
+ private JwtAuthenticationFilter jwtAuthenticationFilter;
+
+ @Override
+ public void configure(AuthenticationManagerBuilder auth) throws Exception {
+ auth.userDetailsService(customUserDetailsService).passwordEncoder(passwordEncoder());
+ }
+
+ @Bean
+ public PasswordEncoder passwordEncoder() {
+ return new BCryptPasswordEncoder();
+ }
+
+ @Bean
+ @Override
+ public AuthenticationManager authenticationManagerBean() throws Exception {
+ return super.authenticationManagerBean();
+ }
+
+ @Override
+ protected void configure(HttpSecurity http) throws Exception {
+ http
+ .csrf().disable()
+ .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
+ .and()
+ .authorizeRequests()
+ .antMatchers("/auth/**").permitAll()
+ .anyRequest().authenticated();
+
+ http.addFilterBefore(jwtAuthenticationFilter, UsernamePasswordAuthenticationFilter.class);
+ }
+}
diff --git a/server/src/main/java/instagram/server/user/User.java b/server/src/main/java/instagram/server/user/User.java
new file mode 100644
index 0000000..b81e956
--- /dev/null
+++ b/server/src/main/java/instagram/server/user/User.java
@@ -0,0 +1,47 @@
+package instagram.server.user;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+
+@Entity
+@Table(name = "users")
+public class User {
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ private Long id;
+
+ @Column(unique = true)
+ private String username;
+
+ private String password;
+
+ // Getter와 Setter 메서드
+
+ public Long getId() {
+ return id;
+ }
+
+ public void setId(Long id) {
+ this.id = id;
+ }
+
+ public String getUsername() {
+ return username;
+ }
+
+ public void setUsername(String username) {
+ this.username = username;
+ }
+
+ public String getPassword() {
+ return password;
+ }
+
+ public void setPassword(String password) {
+ this.password = password;
+ }
+}
diff --git a/server/src/main/java/instagram/server/user/UserRepository.java b/server/src/main/java/instagram/server/user/UserRepository.java
new file mode 100644
index 0000000..494dd39
--- /dev/null
+++ b/server/src/main/java/instagram/server/user/UserRepository.java
@@ -0,0 +1,10 @@
+package instagram.server.user;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.Optional;
+
+public interface UserRepository extends JpaRepository {
+ Optional findByUsername(String username);
+ Boolean existsByUsername(String username);
+}
diff --git a/server/src/main/java/instagram/server/user/UserService.java b/server/src/main/java/instagram/server/user/UserService.java
new file mode 100644
index 0000000..22fa274
--- /dev/null
+++ b/server/src/main/java/instagram/server/user/UserService.java
@@ -0,0 +1,30 @@
+package instagram.server.user;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.crypto.password.PasswordEncoder;
+import org.springframework.stereotype.Service;
+
+@Service
+public class UserService {
+ @Autowired
+ private UserRepository userRepository;
+
+ @Autowired
+ private PasswordEncoder passwordEncoder;
+
+ public User registerUser(String username, String password) {
+ if (userRepository.existsByUsername(username)) {
+ throw new RuntimeException("Username already exists");
+ }
+
+ User user = new User();
+ user.setUsername(username);
+ user.setPassword(passwordEncoder.encode(password));
+ return userRepository.save(user);
+ }
+
+ public User findUser(String username) {
+ return userRepository.findByUsername(username)
+ .orElseThrow(() -> new RuntimeException("User not found"));
+ }
+}
diff --git a/server/src/main/resources/application.properties b/server/src/main/resources/application.properties
new file mode 100644
index 0000000..e82e2e8
--- /dev/null
+++ b/server/src/main/resources/application.properties
@@ -0,0 +1,8 @@
+spring.application.name=server
+spring.datasource.url=jdbc:mysql://localhost:3306/instagram
+spring.datasource.username=root
+spring.datasource.password=yourpassword
+spring.jpa.hibernate.ddl-auto=update
+app.jwtSecret=yourSecretKey
+app.jwtExpirationMs=86400000
+
diff --git a/server/src/test/java/instagram/server/ServerApplicationTests.java b/server/src/test/java/instagram/server/ServerApplicationTests.java
new file mode 100644
index 0000000..6ecca79
--- /dev/null
+++ b/server/src/test/java/instagram/server/ServerApplicationTests.java
@@ -0,0 +1,13 @@
+package instagram.server;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class ServerApplicationTests {
+
+ @Test
+ void contextLoads() {
+ }
+
+}