diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..549e00a2
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,33 @@
+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 00000000..dc63dcd3
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,5 @@
+FROM bellsoft/liberica-openjdk-alpine-musl:11
+ARG JAR_FILE=/socks-0.0.1-SNAPSHOT.jar
+WORKDIR /opt/app
+COPY ${JAR_FILE} app.jar
+ENTRYPOINT ["java","-jar","app.jar"]
\ No newline at end of file
diff --git a/README_DECRIPTION.md b/README_DECRIPTION.md
new file mode 100644
index 00000000..6619c360
--- /dev/null
+++ b/README_DECRIPTION.md
@@ -0,0 +1,12 @@
+# README #
+
+Socks Store Project
+
+### Properties and Tools ###
+
+* Framework to configure an app - Spring Boot
+* Database Server type - PostgreSQL
+* Database versioning is implemented by Liquibase
+* App and database are deployed in two Docker containers; bind with Docker compose
+* Combined containers are deployed on AWS
+* Endpoints persistence with Swagger UI is available at: [socks-store](http://ec2-3-145-3-43.us-east-2.compute.amazonaws.com:8090/swagger-ui/#/socks-controller)
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 00000000..bcff2315
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,25 @@
+version: '3.1'
+
+services:
+  postgres:
+    image: postgres
+    ports:
+      - "5433:5432"
+    environment:
+      - POSTGRES_USER=postgres
+      - POSTGRES_DB=socks_store
+      - POSTGRES_PASSWORD=password
+    restart: always
+    volumes:
+      - "db-data:/var/lib/postgresql/data"
+
+  app:
+    build: .
+    ports:
+      - "8090:8080"
+    depends_on:
+      - postgres
+    restart: always
+
+volumes:
+  db-data:
\ No newline at end of file
diff --git a/mvnw b/mvnw
new file mode 100644
index 00000000..a16b5431
--- /dev/null
+++ b/mvnw
@@ -0,0 +1,310 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    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.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Maven Start Up Batch script
+#
+# Required ENV vars:
+# ------------------
+#   JAVA_HOME - location of a JDK home dir
+#
+# Optional ENV vars
+# -----------------
+#   M2_HOME - location of maven2's installed home dir
+#   MAVEN_OPTS - parameters passed to the Java VM when running Maven
+#     e.g. to debug Maven itself, use
+#       set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+#   MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+# ----------------------------------------------------------------------------
+
+if [ -z "$MAVEN_SKIP_RC" ] ; then
+
+  if [ -f /etc/mavenrc ] ; then
+    . /etc/mavenrc
+  fi
+
+  if [ -f "$HOME/.mavenrc" ] ; then
+    . "$HOME/.mavenrc"
+  fi
+
+fi
+
+# OS specific support.  $var _must_ be set to either true or false.
+cygwin=false;
+darwin=false;
+mingw=false
+case "`uname`" in
+  CYGWIN*) cygwin=true ;;
+  MINGW*) mingw=true;;
+  Darwin*) darwin=true
+    # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
+    # See https://developer.apple.com/library/mac/qa/qa1170/_index.html
+    if [ -z "$JAVA_HOME" ]; then
+      if [ -x "/usr/libexec/java_home" ]; then
+        export JAVA_HOME="`/usr/libexec/java_home`"
+      else
+        export JAVA_HOME="/Library/Java/Home"
+      fi
+    fi
+    ;;
+esac
+
+if [ -z "$JAVA_HOME" ] ; then
+  if [ -r /etc/gentoo-release ] ; then
+    JAVA_HOME=`java-config --jre-home`
+  fi
+fi
+
+if [ -z "$M2_HOME" ] ; then
+  ## resolve links - $0 may be a link to maven's home
+  PRG="$0"
+
+  # need this for relative symlinks
+  while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+      PRG="$link"
+    else
+      PRG="`dirname "$PRG"`/$link"
+    fi
+  done
+
+  saveddir=`pwd`
+
+  M2_HOME=`dirname "$PRG"`/..
+
+  # make it fully qualified
+  M2_HOME=`cd "$M2_HOME" && pwd`
+
+  cd "$saveddir"
+  # echo Using m2 at $M2_HOME
+fi
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched
+if $cygwin ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --unix "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
+fi
+
+# For Mingw, ensure paths are in UNIX format before anything is touched
+if $mingw ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME="`(cd "$M2_HOME"; pwd)`"
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
+fi
+
+if [ -z "$JAVA_HOME" ]; then
+  javaExecutable="`which javac`"
+  if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
+    # readlink(1) is not available as standard on Solaris 10.
+    readLink=`which readlink`
+    if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
+      if $darwin ; then
+        javaHome="`dirname \"$javaExecutable\"`"
+        javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
+      else
+        javaExecutable="`readlink -f \"$javaExecutable\"`"
+      fi
+      javaHome="`dirname \"$javaExecutable\"`"
+      javaHome=`expr "$javaHome" : '\(.*\)/bin'`
+      JAVA_HOME="$javaHome"
+      export JAVA_HOME
+    fi
+  fi
+fi
+
+if [ -z "$JAVACMD" ] ; then
+  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
+  else
+    JAVACMD="`which java`"
+  fi
+fi
+
+if [ ! -x "$JAVACMD" ] ; then
+  echo "Error: JAVA_HOME is not defined correctly." >&2
+  echo "  We cannot execute $JAVACMD" >&2
+  exit 1
+fi
+
+if [ -z "$JAVA_HOME" ] ; then
+  echo "Warning: JAVA_HOME environment variable is not set."
+fi
+
+CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
+
+# traverses directory structure from process work directory to filesystem root
+# first directory with .mvn subdirectory is considered project base directory
+find_maven_basedir() {
+
+  if [ -z "$1" ]
+  then
+    echo "Path not specified to find_maven_basedir"
+    return 1
+  fi
+
+  basedir="$1"
+  wdir="$1"
+  while [ "$wdir" != '/' ] ; do
+    if [ -d "$wdir"/.mvn ] ; then
+      basedir=$wdir
+      break
+    fi
+    # workaround for JBEAP-8937 (on Solaris 10/Sparc)
+    if [ -d "${wdir}" ]; then
+      wdir=`cd "$wdir/.."; pwd`
+    fi
+    # end of workaround
+  done
+  echo "${basedir}"
+}
+
+# concatenates all lines of a file
+concat_lines() {
+  if [ -f "$1" ]; then
+    echo "$(tr -s '\n' ' ' < "$1")"
+  fi
+}
+
+BASE_DIR=`find_maven_basedir "$(pwd)"`
+if [ -z "$BASE_DIR" ]; then
+  exit 1;
+fi
+
+##########################################################################################
+# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+# This allows using the maven wrapper in projects that prohibit checking in binary data.
+##########################################################################################
+if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Found .mvn/wrapper/maven-wrapper.jar"
+    fi
+else
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
+    fi
+    if [ -n "$MVNW_REPOURL" ]; then
+      jarUrl="$MVNW_REPOURL/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+    else
+      jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+    fi
+    while IFS="=" read key value; do
+      case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
+      esac
+    done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Downloading from: $jarUrl"
+    fi
+    wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
+    if $cygwin; then
+      wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
+    fi
+
+    if command -v wget > /dev/null; then
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found wget ... using wget"
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            wget "$jarUrl" -O "$wrapperJarPath"
+        else
+            wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath"
+        fi
+    elif command -v curl > /dev/null; then
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found curl ... using curl"
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            curl -o "$wrapperJarPath" "$jarUrl" -f
+        else
+            curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
+        fi
+
+    else
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Falling back to using Java to download"
+        fi
+        javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
+        # For Cygwin, switch paths to Windows format before running javac
+        if $cygwin; then
+          javaClass=`cygpath --path --windows "$javaClass"`
+        fi
+        if [ -e "$javaClass" ]; then
+            if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Compiling MavenWrapperDownloader.java ..."
+                fi
+                # Compiling the Java class
+                ("$JAVA_HOME/bin/javac" "$javaClass")
+            fi
+            if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+                # Running the downloader
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Running MavenWrapperDownloader.java ..."
+                fi
+                ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
+            fi
+        fi
+    fi
+fi
+##########################################################################################
+# End of extension
+##########################################################################################
+
+export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
+if [ "$MVNW_VERBOSE" = true ]; then
+  echo $MAVEN_PROJECTBASEDIR
+fi
+MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --path --windows "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
+  [ -n "$MAVEN_PROJECTBASEDIR" ] &&
+    MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
+fi
+
+# Provide a "standardized" way to retrieve the CLI args that will
+# work with both Windows and non-Windows executions.
+MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
+export MAVEN_CMD_LINE_ARGS
+
+WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+exec "$JAVACMD" \
+  $MAVEN_OPTS \
+  -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
+  "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
+  ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"
diff --git a/mvnw.cmd b/mvnw.cmd
new file mode 100644
index 00000000..c8d43372
--- /dev/null
+++ b/mvnw.cmd
@@ -0,0 +1,182 @@
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    https://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Maven Start Up Batch script
+@REM
+@REM Required ENV vars:
+@REM JAVA_HOME - location of a JDK home dir
+@REM
+@REM Optional ENV vars
+@REM M2_HOME - location of maven2's installed home dir
+@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
+@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending
+@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
+@REM     e.g. to debug Maven itself, use
+@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+@REM ----------------------------------------------------------------------------
+
+@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
+@echo off
+@REM set title of command window
+title %0
+@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
+@if "%MAVEN_BATCH_ECHO%" == "on"  echo %MAVEN_BATCH_ECHO%
+
+@REM set %HOME% to equivalent of $HOME
+if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
+
+@REM Execute a user defined script before this one
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
+@REM check for pre script, once with legacy .bat ending and once with .cmd ending
+if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat"
+if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd"
+:skipRcPre
+
+@setlocal
+
+set ERROR_CODE=0
+
+@REM To isolate internal variables from possible post scripts, we use another setlocal
+@setlocal
+
+@REM ==== START VALIDATION ====
+if not "%JAVA_HOME%" == "" goto OkJHome
+
+echo.
+echo Error: JAVA_HOME not found in your environment. >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+:OkJHome
+if exist "%JAVA_HOME%\bin\java.exe" goto init
+
+echo.
+echo Error: JAVA_HOME is set to an invalid directory. >&2
+echo JAVA_HOME = "%JAVA_HOME%" >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+@REM ==== END VALIDATION ====
+
+:init
+
+@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
+@REM Fallback to current working directory if not found.
+
+set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
+IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
+
+set EXEC_DIR=%CD%
+set WDIR=%EXEC_DIR%
+:findBaseDir
+IF EXIST "%WDIR%"\.mvn goto baseDirFound
+cd ..
+IF "%WDIR%"=="%CD%" goto baseDirNotFound
+set WDIR=%CD%
+goto findBaseDir
+
+:baseDirFound
+set MAVEN_PROJECTBASEDIR=%WDIR%
+cd "%EXEC_DIR%"
+goto endDetectBaseDir
+
+:baseDirNotFound
+set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
+cd "%EXEC_DIR%"
+
+:endDetectBaseDir
+
+IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
+
+@setlocal EnableExtensions EnableDelayedExpansion
+for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
+@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
+
+:endReadAdditionalConfig
+
+SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
+set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
+set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+
+FOR /F "tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
+    IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
+)
+
+@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
+if exist %WRAPPER_JAR% (
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Found %WRAPPER_JAR%
+    )
+) else (
+    if not "%MVNW_REPOURL%" == "" (
+        SET DOWNLOAD_URL="%MVNW_REPOURL%/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+    )
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Couldn't find %WRAPPER_JAR%, downloading it ...
+        echo Downloading from: %DOWNLOAD_URL%
+    )
+
+    powershell -Command "&{"^
+		"$webclient = new-object System.Net.WebClient;"^
+		"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
+		"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
+		"}"^
+		"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
+		"}"
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Finished downloading %WRAPPER_JAR%
+    )
+)
+@REM End of extension
+
+@REM Provide a "standardized" way to retrieve the CLI args that will
+@REM work with both Windows and non-Windows executions.
+set MAVEN_CMD_LINE_ARGS=%*
+
+%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
+if ERRORLEVEL 1 goto error
+goto end
+
+:error
+set ERROR_CODE=1
+
+:end
+@endlocal & set ERROR_CODE=%ERROR_CODE%
+
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost
+@REM check for post script, once with legacy .bat ending and once with .cmd ending
+if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat"
+if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd"
+:skipRcPost
+
+@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
+if "%MAVEN_BATCH_PAUSE%" == "on" pause
+
+if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE%
+
+exit /B %ERROR_CODE%
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 00000000..75f4cd5c
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.5.6</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>com.store</groupId>
+    <artifactId>socks</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>soks</name>
+    <description>Demo project for Spring Boot</description>
+    <properties>
+        <java.version>11</java.version>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.mybatis.spring.boot</groupId>
+            <artifactId>mybatis-spring-boot-starter</artifactId>
+            <version>2.2.0</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-devtools</artifactId>
+            <scope>runtime</scope>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.postgresql</groupId>
+            <artifactId>postgresql</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>jakarta.validation</groupId>
+            <artifactId>jakarta.validation-api</artifactId>
+            <version>2.0.2</version>
+        </dependency>
+        <dependency>
+            <groupId>org.liquibase</groupId>
+            <artifactId>liquibase-core</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.springfox</groupId>
+            <artifactId>springfox-boot-starter</artifactId>
+            <version>3.0.0</version>
+        </dependency>
+        <dependency>
+            <groupId>io.springfox</groupId>
+            <artifactId>springfox-swagger-ui</artifactId>
+            <version>3.0.0</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>
diff --git a/socks-0.0.1-SNAPSHOT.jar b/socks-0.0.1-SNAPSHOT.jar
new file mode 100644
index 00000000..7f12edc0
Binary files /dev/null and b/socks-0.0.1-SNAPSHOT.jar differ
diff --git a/src/main/java/com/store/socks/SocksApplication.java b/src/main/java/com/store/socks/SocksApplication.java
new file mode 100644
index 00000000..d3746246
--- /dev/null
+++ b/src/main/java/com/store/socks/SocksApplication.java
@@ -0,0 +1,13 @@
+package com.store.socks;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SocksApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SocksApplication.class, args);
+    }
+
+}
diff --git a/src/main/java/com/store/socks/config/SwaggerConfig.java b/src/main/java/com/store/socks/config/SwaggerConfig.java
new file mode 100644
index 00000000..a71a62c5
--- /dev/null
+++ b/src/main/java/com/store/socks/config/SwaggerConfig.java
@@ -0,0 +1,33 @@
+package com.store.socks.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import springfox.documentation.builders.ApiInfoBuilder;
+import springfox.documentation.builders.PathSelectors;
+import springfox.documentation.builders.RequestHandlerSelectors;
+import springfox.documentation.service.ApiInfo;
+import springfox.documentation.service.Contact;
+import springfox.documentation.spi.DocumentationType;
+import springfox.documentation.spring.web.plugins.Docket;
+import springfox.documentation.swagger2.annotations.EnableSwagger2;
+
+@Configuration
+@EnableSwagger2
+public class SwaggerConfig {
+    @Bean
+    public Docket api() {
+        return new Docket(DocumentationType.SWAGGER_2)
+                .apiInfo(apiInfo())
+                .select()
+                .apis(RequestHandlerSelectors.basePackage("com.store.socks.controller"))
+                .paths(PathSelectors.any())
+                .build();
+    }
+
+    private ApiInfo apiInfo() {
+        return new ApiInfoBuilder().title("SocksStore API")
+                .description("Service for socks registration operations")
+                .contact(new Contact("Ilona Prisukhina", "", "prisukhinailona@gmail.com"))
+                .build();
+    }
+}
diff --git a/src/main/java/com/store/socks/controller/SocksController.java b/src/main/java/com/store/socks/controller/SocksController.java
new file mode 100644
index 00000000..5295ee2b
--- /dev/null
+++ b/src/main/java/com/store/socks/controller/SocksController.java
@@ -0,0 +1,53 @@
+package com.store.socks.controller;
+
+import com.store.socks.dto.IncomeOutcomeDtoRequest;
+import com.store.socks.service.Operation;
+import com.store.socks.service.SocksService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.Optional;
+
+@Controller
+@RequestMapping("/api/socks")
+public class SocksController {
+    @Autowired
+    private final SocksService socksService;
+
+    public SocksController(SocksService socksService) {
+        this.socksService = socksService;
+    }
+
+    @GetMapping
+    public ResponseEntity<Integer> getSocksNumberGivenParams(@RequestParam String color, @RequestParam Operation operation, @RequestParam int cottonPart){
+        Optional<Integer> result =  socksService.getSocksNumberGivenParams(color, operation, cottonPart);
+        return new ResponseEntity<>(result.orElse(0), HttpStatus.OK);
+    }
+
+    @PostMapping("/income")
+    public ResponseEntity<Boolean> registerSocksIncome(@RequestBody IncomeOutcomeDtoRequest dtoRequest){
+        boolean result = socksService.registerSocksIncome(dtoRequest.getColor(), dtoRequest.getCottonPart(), dtoRequest.getQuantity());
+        HttpStatus status;
+        if(result){
+            status = HttpStatus.OK;
+        } else {
+            status = HttpStatus.BAD_REQUEST;
+        }
+        return new ResponseEntity<>(result, status);
+    }
+
+    @PostMapping("/outcome")
+    public ResponseEntity<Boolean> registerSocksOutcome(@RequestBody IncomeOutcomeDtoRequest dtoRequest){
+        boolean result = socksService.registerSocksOutcome(dtoRequest.getColor(), dtoRequest.getCottonPart(), dtoRequest.getQuantity());
+        HttpStatus status;
+        if(result){
+            status = HttpStatus.OK;
+        } else {
+            status = HttpStatus.BAD_REQUEST;
+        }
+        return new ResponseEntity<>(result, status);
+    }
+}
diff --git a/src/main/java/com/store/socks/dto/IncomeOutcomeDtoRequest.java b/src/main/java/com/store/socks/dto/IncomeOutcomeDtoRequest.java
new file mode 100644
index 00000000..a9e44e23
--- /dev/null
+++ b/src/main/java/com/store/socks/dto/IncomeOutcomeDtoRequest.java
@@ -0,0 +1,48 @@
+package com.store.socks.dto;
+
+import javax.validation.constraints.Max;
+import javax.validation.constraints.Min;
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.NotNull;
+
+public class IncomeOutcomeDtoRequest {
+    @NotBlank
+    private String color;
+    @NotNull
+    @Min(0)
+    @Max(100)
+    private int cottonPart;
+    @NotNull
+    @Min(1)
+    private int quantity;
+
+    public IncomeOutcomeDtoRequest(String color, int cottonPart, int quantity) {
+        this.color = color;
+        this.cottonPart = cottonPart;
+        this.quantity = quantity;
+    }
+
+    public String getColor() {
+        return color;
+    }
+
+    public void setColor(String color) {
+        this.color = color;
+    }
+
+    public int getCottonPart() {
+        return cottonPart;
+    }
+
+    public void setCottonPart(int cottonPart) {
+        this.cottonPart = cottonPart;
+    }
+
+    public int getQuantity() {
+        return quantity;
+    }
+
+    public void setQuantity(int quantity) {
+        this.quantity = quantity;
+    }
+}
diff --git a/src/main/java/com/store/socks/mapper/SocksMapper.java b/src/main/java/com/store/socks/mapper/SocksMapper.java
new file mode 100644
index 00000000..55bc4158
--- /dev/null
+++ b/src/main/java/com/store/socks/mapper/SocksMapper.java
@@ -0,0 +1,39 @@
+package com.store.socks.mapper;
+
+import com.store.socks.model.Socks;
+import org.apache.ibatis.annotations.*;
+
+import java.util.Optional;
+
+@Mapper
+public interface SocksMapper {
+
+    @Select("SELECT id, color, cotton_part, quantity FROM socks_balance WHERE id = #{id}")
+    @Results({
+            @Result(property = "id", column = "id"),
+            @Result(property = "color", column = "color"),
+            @Result(property = "cottonPart", column = "cotton_part"),
+            @Result(property = "quantity", column = "quantity")
+    })
+    Socks selectSocksById(@Param("id") int id);
+
+
+  //  @Select("SELECT quantity FROM socks_balance WHERE color = #{color} AND cotton_part = #{cottonPart} LIMIT 1")
+  //  Optional<Integer> selectSocksByParams(@Param("color") String color, @Param("cottonPart") int cottonPart);
+
+    @Insert("INSERT INTO socks_balance (color, cotton_part, quantity) VALUES (#{color}, #{cottonPart}, #{quantity})")
+    void insertSocksEntry(@Param("color") String color, @Param("cottonPart") int cottonPart, @Param("quantity") int quantity);
+
+    @Update("UPDATE socks_balance SET quantity = #{quantity} WHERE color = #{color} AND cotton_part = #{cottonPart}")
+    boolean updateSocksQuantityGivenParams(@Param("color") String color, @Param("cottonPart") int cottonPart, @Param("quantity") int quantity);
+
+    @Select("SELECT SUM (quantity) FROM socks_balance WHERE color = #{color} AND cotton_part > #{cottonPart}")
+    Optional<Integer> selectQuantityByParamsMoreThan(@Param("color") String color, @Param("cottonPart") int cottonPart);
+
+    @Select("SELECT SUM (quantity) FROM socks_balance WHERE color = #{color} AND cotton_part < #{cottonPart}")
+    Optional<Integer> selectQuantityByParamsLessThan(@Param("color") String color, @Param("cottonPart") int cottonPart);
+
+    @Select("SELECT SUM (quantity) FROM socks_balance WHERE color = #{color} AND cotton_part = #{cottonPart}")
+    Optional<Integer> selectQuantityByParamsEqual(@Param("color") String color, @Param("cottonPart") int cottonPart);
+
+}
diff --git a/src/main/java/com/store/socks/model/Socks.java b/src/main/java/com/store/socks/model/Socks.java
new file mode 100644
index 00000000..7fa10f89
--- /dev/null
+++ b/src/main/java/com/store/socks/model/Socks.java
@@ -0,0 +1,47 @@
+package com.store.socks.model;
+
+public class Socks {
+    private int id;
+    private String color;
+    private int cottonPart;
+    private int quantity;
+
+    public Socks(int id, String color, int cottonPart, int quantity) {
+        this.id = id;
+        this.color = color;
+        this.cottonPart = cottonPart;
+        this.quantity = quantity;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getColor() {
+        return color;
+    }
+
+    public void setColor(String color) {
+        this.color = color;
+    }
+
+    public int getCottonPart() {
+        return cottonPart;
+    }
+
+    public void setCottonPart(int cottonPart) {
+        this.cottonPart = cottonPart;
+    }
+
+    public int getQuantity() {
+        return quantity;
+    }
+
+    public void setQuantity(int quantity) {
+        this.quantity = quantity;
+    }
+}
diff --git a/src/main/java/com/store/socks/service/Operation.java b/src/main/java/com/store/socks/service/Operation.java
new file mode 100644
index 00000000..04609e41
--- /dev/null
+++ b/src/main/java/com/store/socks/service/Operation.java
@@ -0,0 +1,7 @@
+package com.store.socks.service;
+
+public enum Operation{
+    MORE_THAN,
+    LESS_THAN,
+    EQUAL
+}
diff --git a/src/main/java/com/store/socks/service/SocksService.java b/src/main/java/com/store/socks/service/SocksService.java
new file mode 100644
index 00000000..eff05a79
--- /dev/null
+++ b/src/main/java/com/store/socks/service/SocksService.java
@@ -0,0 +1,60 @@
+package com.store.socks.service;
+
+import com.store.socks.mapper.SocksMapper;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.Optional;
+
+@Service
+public class SocksService {
+    @Autowired
+    private final SocksMapper socksMapper;
+
+    public SocksService(SocksMapper socksMapper) {
+        this.socksMapper = socksMapper;
+    }
+
+    public Optional<Integer> getSocksNumberGivenParams(String color, Operation operation, int cottonPart) {
+        Optional<Integer> quantity;
+        switch (operation) {
+            case MORE_THAN:
+                quantity = socksMapper.selectQuantityByParamsMoreThan(color, cottonPart);
+                break;
+            case LESS_THAN:
+                quantity = socksMapper.selectQuantityByParamsLessThan(color, cottonPart);
+                break;
+            case EQUAL:
+                quantity = socksMapper.selectQuantityByParamsEqual(color, cottonPart);
+                break;
+            default:
+                throw new IllegalStateException("Unexpected value: " + operation);
+        }
+        return quantity;
+    }
+
+    public boolean registerSocksIncome(String color, int cottonPart, int quantity) {
+        Optional<Integer> socksQuantity = socksMapper.selectQuantityByParamsEqual(color, cottonPart);
+        if (socksQuantity.isPresent()) {
+            int dbQuantity = socksQuantity.get();
+            return socksMapper.updateSocksQuantityGivenParams(color, cottonPart, dbQuantity + quantity);
+        } else {
+            socksMapper.insertSocksEntry(color, cottonPart, quantity);
+            return true;
+        }
+    }
+
+    public boolean registerSocksOutcome(String color, int cottonPart, int quantity) {
+        Optional<Integer> socksQuantity = socksMapper.selectQuantityByParamsEqual(color, cottonPart);
+        if (socksQuantity.isPresent()) {
+            int dbQuantity = socksQuantity.get();
+            if (quantity > dbQuantity) {
+                return false;
+            } else {
+                return socksMapper.updateSocksQuantityGivenParams(color, cottonPart, dbQuantity - quantity);
+            }
+        } else {
+            return false;
+        }
+    }
+}
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
new file mode 100644
index 00000000..ba60f598
--- /dev/null
+++ b/src/main/resources/application.properties
@@ -0,0 +1,5 @@
+#spring.datasource.url=jdbc:postgresql://localhost:5432/socks_store
+spring.datasource.username=postgres
+spring.datasource.password=password
+spring.datasource.driver-class-name=org.postgresql.Driver
+spring.datasource.url=jdbc:postgresql://postgres/socks_store
diff --git a/src/main/resources/db/changelog/db.changelog-master.yaml b/src/main/resources/db/changelog/db.changelog-master.yaml
new file mode 100644
index 00000000..7d9f4da9
--- /dev/null
+++ b/src/main/resources/db/changelog/db.changelog-master.yaml
@@ -0,0 +1,29 @@
+databaseChangeLog:
+  - changeSet:
+      id: 1
+      author: ilona
+      changes:
+        - createTable:
+            tableName: socks_balance
+            columns:
+              - column:
+                  name: id
+                  type: SERIAL
+                  constraints:
+                    primaryKey:  true
+                    nullable:  false
+              - column:
+                  name: color
+                  type: VARCHAR (20)
+                  constraints:
+                    nullable:  false
+              - column:
+                  name: cotton_part
+                  type: INT
+                  constraints:
+                    nullable:  false
+              - column:
+                  name: quantity
+                  type: INT
+                  constraints:
+                    nullable:  false
\ No newline at end of file
diff --git a/src/main/resources/templates/home.html b/src/main/resources/templates/home.html
new file mode 100644
index 00000000..a48e9929
--- /dev/null
+++ b/src/main/resources/templates/home.html
@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <!--    <meta charset="UTF-8">-->
+    <!--    <meta name="viewport"-->
+    <!--          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">-->
+    <!--    <meta http-equiv="X-UA-Compatible" content="ie=edge">-->
+    <!--    <title>Home</title>-->
+</head>
+<body>
+<h1>Hello, homepage!</h1>
+</body>
+</html>
diff --git a/src/test/java/com/store/socks/SoksApplicationTests.java b/src/test/java/com/store/socks/SoksApplicationTests.java
new file mode 100644
index 00000000..1891f704
--- /dev/null
+++ b/src/test/java/com/store/socks/SoksApplicationTests.java
@@ -0,0 +1,13 @@
+package com.store.socks;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class SoksApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+
+}