Initial commit

.gitattributes

@@ -0,0 +1,3 @@
+/gradlew text eol=lf
+*.bat text eol=crlf
+*.jar binary

.gitignore

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+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/

build.gradle.kts

@@ -0,0 +1,49 @@
+plugins {
+	java
+	id("org.springframework.boot") version "3.5.3"
+	id("io.spring.dependency-management") version "1.1.7"
+}
+
+group = "ru.team58"
+version = "0.0.1-SNAPSHOT"
+
+java {
+	toolchain {
+		languageVersion = JavaLanguageVersion.of(17)
+	}
+}
+
+configurations {
+	compileOnly {
+		extendsFrom(configurations.annotationProcessor.get())
+	}
+}
+
+repositories {
+	mavenCentral()
+}
+
+dependencies {
+	implementation("org.springframework.boot:spring-boot-starter-data-jpa")
+	implementation("org.springframework.boot:spring-boot-starter-security")
+	implementation("org.springframework.boot:spring-boot-starter-web")
+	implementation("org.flywaydb:flyway-core")
+	implementation("org.mapstruct:mapstruct:1.6.3")
+	implementation("org.postgresql:postgresql")
+	implementation("org.flywaydb:flyway-database-postgresql")
+	implementation("org.apache.logging.log4j:log4j-api:2.22.1")
+	implementation("org.apache.logging.log4j:log4j-core:2.22.1")
+	implementation("org.slf4j:slf4j-api:2.0.13")
+	implementation("org.springdoc:springdoc-openapi-starter-webmvc-ui:2.8.6")
+	runtimeOnly("org.apache.logging.log4j:log4j-slf4j-impl:2.22.1")
+	annotationProcessor("org.mapstruct:mapstruct-processor:1.6.3")
+	compileOnly("org.projectlombok:lombok")
+	annotationProcessor("org.projectlombok:lombok")
+	testImplementation("org.springframework.boot:spring-boot-starter-test")
+	testImplementation("org.springframework.security:spring-security-test")
+	testRuntimeOnly("org.junit.platform:junit-platform-launcher")
+}
+
+tasks.withType<Test> {
+	useJUnitPlatform()
+}

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.2-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -0,0 +1,251 @@
+#!/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.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+##############################################################################
+#
+#   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 -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || 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 "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH="\\\"\\\""
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$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, 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" \
+        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
+        "$@"
+
+# 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 "$JAVACMD" "$@"

gradlew.bat

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+@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
+@rem SPDX-License-Identifier: Apache-2.0
+@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=
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+
+: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

settings.gradle.kts

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+rootProject.name = "profileservice"

src/main/java/ru/team58/profileservice/ProfileserviceApplication.java

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+package ru.team58.profileservice;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+
+@SpringBootApplication(exclude = { SecurityAutoConfiguration.class })
+@EnableJpaRepositories
+public class ProfileserviceApplication {
+	private static final Logger log = LoggerFactory.getLogger(ProfileserviceApplication.class);
+
+	public static void main(String[] args) {
+		SpringApplication.run(ProfileserviceApplication.class, args);
+	}
+
+}

src/main/java/ru/team58/profileservice/controller/UserController.java

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+package ru.team58.profileservice.controller;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+import ru.team58.profileservice.controller.schemes.CreateUserRequest;
+import ru.team58.profileservice.controller.schemes.GetUserResponse;
+import ru.team58.profileservice.controller.schemes.UpdateUserRequest;
+import ru.team58.profileservice.controller.schemes.UserResponse;
+import ru.team58.profileservice.mapper.UserMapper;
+import ru.team58.profileservice.service.UserDTO;
+import ru.team58.profileservice.service.UserService;
+
+import java.security.Principal;
+import java.util.UUID;
+
+@RestController
+public class UserController {
+    @Autowired
+    UserService userService;
+
+    @GetMapping("/")
+    public UserResponse getMe(Principal principal) {
+        return UserMapper.INSTANCE.toUserResponse(userService.getByUsername(principal.getName()));
+    }
+
+    @PutMapping("/")
+    public void updateMe(Principal principal, @RequestBody UpdateUserRequest request) {
+        userService.updateUser(UserMapper.INSTANCE.toUserDTO(request));
+    }
+
+    @DeleteMapping("/")
+    public void deleteMe(Principal principal) {
+        UserDTO user = userService.getByUsername(principal.getName());
+        userService.deleteUser(user.getId());
+    }
+
+    @PostMapping("/")
+    public void createMe(@RequestBody CreateUserRequest request) {
+        userService.createUser(UserMapper.INSTANCE.toUserDTO(request));
+    }
+
+    @GetMapping("/{id}")
+    public GetUserResponse getUser(@PathVariable UUID id) {
+        UserDTO user = userService.getById(id);
+        return UserMapper.INSTANCE.toGetUserResponse(user);
+    }
+
+    @DeleteMapping("/{id}")
+    public void deleteUser(@PathVariable UUID id) {
+        userService.deleteUser(id);
+    }
+}

src/main/java/ru/team58/profileservice/controller/schemes/CreateUserRequest.java

@@ -0,0 +1,9 @@
+package ru.team58.profileservice.controller.schemes;
+
+public class CreateUserRequest {
+    String username;
+    String firstName;
+    String lastName;
+    String email;
+    String hashedPassword;
+}

src/main/java/ru/team58/profileservice/controller/schemes/GetUserResponse.java

@@ -0,0 +1,8 @@
+package ru.team58.profileservice.controller.schemes;
+
+public class GetUserResponse {
+    String username;
+    String firstName;
+    String lastName;
+    String email;
+}

src/main/java/ru/team58/profileservice/controller/schemes/UpdateUserRequest.java

@@ -0,0 +1,11 @@
+package ru.team58.profileservice.controller.schemes;
+
+import java.util.UUID;
+
+public class UpdateUserRequest {
+    UUID id;
+    String username;
+    String firstName;
+    String lastName;
+    String email;
+}

src/main/java/ru/team58/profileservice/controller/schemes/UserResponse.java

@@ -0,0 +1,11 @@
+package ru.team58.profileservice.controller.schemes;
+
+import java.util.UUID;
+
+public class UserResponse {
+    UUID id;
+    String username;
+    String firstName;
+    String lastName;
+    String email;
+}

src/main/java/ru/team58/profileservice/mapper/UserMapper.java

@@ -0,0 +1,25 @@
+package ru.team58.profileservice.mapper;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.factory.Mappers;
+import ru.team58.profileservice.controller.schemes.CreateUserRequest;
+import ru.team58.profileservice.controller.schemes.GetUserResponse;
+import ru.team58.profileservice.controller.schemes.UpdateUserRequest;
+import ru.team58.profileservice.controller.schemes.UserResponse;
+import ru.team58.profileservice.persistence.entity.UserEntity;
+import ru.team58.profileservice.service.UserDTO;
+
+@Mapper
+public interface UserMapper {
+    UserMapper INSTANCE = Mappers.getMapper(UserMapper.class);
+
+    UserDTO toUserDTO(UserEntity entity);
+    UserDTO toUserDTO(UpdateUserRequest request);
+    UserDTO toUserDTO(CreateUserRequest request);
+
+    UserEntity toUserEntity(UserDTO dto);
+
+    UserResponse toUserResponse(UserDTO dto);
+
+    GetUserResponse toGetUserResponse(UserDTO dto);
+}

src/main/java/ru/team58/profileservice/persistence/entity/UserEntity.java

@@ -0,0 +1,36 @@
+package ru.team58.profileservice.persistence.entity;
+
+import jakarta.persistence.*;
+import lombok.*;
+import ru.team58.profileservice.service.UserDTO;
+
+import java.util.UUID;
+
+@Entity
+@Table(name = "user")
+@NoArgsConstructor
+@AllArgsConstructor
+@Builder
+@Getter
+@Setter
+public class UserEntity {
+    @Id
+    @Column(name = "id", nullable = false)
+    @GeneratedValue(strategy = GenerationType.UUID)
+    UUID id;
+
+    @Column(name = "username", nullable = false)
+    String username;
+
+    @Column(name = "firstname", nullable = false)
+    String firstName;
+
+    @Column(name = "lastName", nullable = false)
+    String lastName;
+
+    @Column(name = "email", nullable = false)
+    String email;
+
+    @Column(name = "hashed_password", nullable = false)
+    String hashed_password;
+}

src/main/java/ru/team58/profileservice/persistence/repo/UserRepository.java

@@ -0,0 +1,11 @@
+package ru.team58.profileservice.persistence.repo;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import ru.team58.profileservice.persistence.entity.UserEntity;
+
+import java.util.Optional;
+import java.util.UUID;
+
+public interface UserRepository extends JpaRepository<UserEntity, UUID> {
+    Optional<UserEntity> findByUsername(String username);
+}

src/main/java/ru/team58/profileservice/service/UserDTO.java

@@ -0,0 +1,24 @@
+package ru.team58.profileservice.service;
+
+import lombok.*;
+import ru.team58.profileservice.persistence.entity.UserEntity;
+
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.Objects;
+import java.util.UUID;
+
+@Getter
+@Setter
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class UserDTO {
+    UUID id;
+    String username;
+    String firstName;
+    String lastName;
+    String email;
+    String hashedPassword;
+}

src/main/java/ru/team58/profileservice/service/UserService.java

@@ -0,0 +1,11 @@
+package ru.team58.profileservice.service;
+
+import java.util.UUID;
+
+public interface UserService {
+    public UserDTO getById(UUID id);
+    public UserDTO getByUsername(String username);
+    public UUID createUser(UserDTO user);
+    public void deleteUser(UUID id);
+    public void updateUser(UserDTO user);
+}

src/main/java/ru/team58/profileservice/service/UserServiceImpl.java

@@ -0,0 +1,49 @@
+package ru.team58.profileservice.service;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import ru.team58.profileservice.mapper.UserMapper;
+import ru.team58.profileservice.persistence.entity.UserEntity;
+import ru.team58.profileservice.persistence.repo.UserRepository;
+import ru.team58.profileservice.service.exceptions.UserAlreadyExistsException;
+import ru.team58.profileservice.service.exceptions.UserNotFoundException;
+
+import java.util.UUID;
+
+@Service
+public class UserServiceImpl implements UserService {
+    @Autowired
+    UserRepository userRepository;
+
+    @Override
+    public UserDTO getById(UUID id) {
+        UserEntity user = userRepository.findById(id).orElseThrow(UserNotFoundException::new);
+        return UserMapper.INSTANCE.toUserDTO(user);
+    }
+
+    @Override
+    public UserDTO getByUsername(String username) {
+        UserEntity user = userRepository.findByUsername(username).orElseThrow(UserNotFoundException::new);
+        return UserMapper.INSTANCE.toUserDTO(user);
+    }
+
+    @Override
+    public UUID createUser(UserDTO user) {
+        userRepository.findByUsername(user.username).ifPresent(u -> {
+            throw new UserAlreadyExistsException();
+        });
+        return userRepository.save(UserMapper.INSTANCE.toUserEntity(user)).getId();
+    }
+
+    @Override
+    public void deleteUser(UUID id) {
+        userRepository.findById(id).orElseThrow(UserNotFoundException::new);
+        userRepository.deleteById(id);
+    }
+
+    @Override
+    public void updateUser(UserDTO user) {
+        userRepository.findById(user.getId()).orElseThrow(UserNotFoundException::new);
+        userRepository.save(UserMapper.INSTANCE.toUserEntity(user));
+    }
+}

src/main/java/ru/team58/profileservice/service/exceptions/UserAlreadyExistsException.java

@@ -0,0 +1,4 @@
+package ru.team58.profileservice.service.exceptions;
+
+public class UserAlreadyExistsException extends RuntimeException {
+}

src/main/java/ru/team58/profileservice/service/exceptions/UserNotFoundException.java

@@ -0,0 +1,4 @@
+package ru.team58.profileservice.service.exceptions;
+
+public class UserNotFoundException extends RuntimeException {
+}

src/main/resources/application.properties

@@ -0,0 +1,6 @@
+spring.application.name=profileservice
+
+## PostgreSQL
+spring.datasource.url=jdbc:postgresql://localhost:5432/userdb
+spring.datasource.username=userdb
+spring.datasource.password=1205