diff --git a/.gitignore b/.gitignore
index a512c8b38..a152a990b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,4 +16,38 @@
 
 out/
 
-.idea
\ No newline at end of file
+.idea
+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/README.md b/README.md
index 8df9d4d3a..e7f84c065 100644
--- a/README.md
+++ b/README.md
@@ -1,30 +1,42 @@
-### Requirements
+### Run the application
 
-- Implement one single API which accepts a todo task and records it
-  - There is a maximum **limit of N tasks per user** that can be added **per day**.
-  - Different users can have **different** maximum daily limit.
-- Write integration (functional) tests
-- Write unit tests
-- Choose a suitable architecture to make your code simple, organizable, and maintainable
-- Write a concise README
-  - How to run your code locally?
-  - A sample “curl” command to call your API
-  - How to run your unit tests locally?
-  - What do you love about your solution?
-  - What else do you want us to know about however you do not have enough time to complete?
+First, you need to install `maven` and `java` with `version >= 1.8`.
+Open terminal and  `cd` to folder `todotask`. After that, run this command `mvn spring-boot:run` to run the
+application.
 
-### Notes
+### Verify running application
 
-- We're using Golang at Manabie. **However**, we encourage you to use the programming language that you are most comfortable with because we want you to **shine** with all your skills and knowledge.
+After running application successfully, you can test the api by sending this `CURL` request.
 
-### How to submit your solution?
+```cookie
+curl --location --request PUT 'http://localhost:8080/task/add' \
+--header 'Content-Type: application/json' \
+--data-raw '{
+    "user_id": 1,
+    "task_name": "test",
+    "task_description":"test",
+    "target_date":"2022-07-08T00:00:00Z"
+}'
+```
 
-- Fork this repo and show us your development progress via a PR
+### Run unit and integration tests
 
-### Interesting facts about Manabie
+For unit testing and integration testing, run this command ```mvn clean test```
 
-- Monthly there are about 2 million lines of code changes (inserted/updated/deleted) committed into our GitHub repositories. To avoid **regression bugs**, we write different kinds of **automated tests** (unit/integration (functionality)/end2end) as parts of the definition of done of our assigned tasks.
-- We nurture the cultural values: **knowledge sharing** and **good communication**, therefore good written documents and readable, organizable, and maintainable code are in our blood when we build any features to grow our products.
-- We have **collaborative** culture at Manabie. Feel free to ask trieu@manabie.com any questions. We are very happy to answer all of them.
+### Some highlights about the project
 
-Thank you for spending time to read and attempt our take-home assessment. We are looking forward to your submission.
+1. This application contains three layer: controller, service and repository. Each layer communicates with each other
+   via interface not their concrete methods. Therefore, each layer is easily replaceable and extendable.
+2. `ZonedTimeDate` is used instead of `Date`. This new class helps us maintain daily limit logic for different users in
+   different timezones.
+3. `Spring Validation` and `Global Exception Handling` are used to passively verify request format and throws predefined
+   response if request format is invalid. For example, if field `user_id` or `target_date` in `AddTaskRequest` is null,
+   application will return a bad request response immediately.
+4. This project uses H2, an in-memory database, for the purpose of making the application locally runnable without an
+   external database like Postrges or Mysql. The schema and initial data defined in two files `schema.sql`
+   and `data.sql`, are stored in folder ```src/main/java/resources```. The schema file is also used for testing.
+
+### Other notes
+
+1. Database and server configuartion are configure in file ```src/main/resources/application.properties```. Server will
+   start at the default port `8080`
diff --git a/todotask/mvnw b/todotask/mvnw
new file mode 100755
index 000000000..8a8fb2282
--- /dev/null
+++ b/todotask/mvnw
@@ -0,0 +1,316 @@
+#!/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 "$MAVEN_SKIP_RC" ] ; then
+
+  if [ -f /usr/local/etc/mavenrc ] ; then
+    . /usr/local/etc/mavenrc
+  fi
+
+  if [ -f /etc/mavenrc ] ; then
+    . /etc/mavenrc
+  fi
+
+  if [ -f "$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="`\\unset -f command; \\command -v 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/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
+    else
+      jarUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.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 "$wrapperJarPath" || rm -f "$wrapperJarPath"
+        else
+            wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
+        fi
+    elif command -v curl > /dev/null; then
+        if [ "$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 \
+  $MAVEN_DEBUG_OPTS \
+  -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
+  "-Dmaven.home=${M2_HOME}" \
+  "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
+  ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"
diff --git a/todotask/mvnw.cmd b/todotask/mvnw.cmd
new file mode 100644
index 000000000..1d8ab018e
--- /dev/null
+++ b/todotask/mvnw.cmd
@@ -0,0 +1,188 @@
+@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 "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %*
+if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\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/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
+
+FOR /F "usebackq 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%/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.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 "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat"
+if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\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%
+
+cmd /C exit /B %ERROR_CODE%
diff --git a/todotask/pom.xml b/todotask/pom.xml
new file mode 100644
index 000000000..5a0aaf30e
--- /dev/null
+++ b/todotask/pom.xml
@@ -0,0 +1,77 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
+		 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>2.7.1</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>com.manabie</groupId>
+	<artifactId>todotask</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>todotask</name>
+	<description>To do task prj</description>
+	<properties>
+		<java.version>1.8</java.version>
+	</properties>
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-jpa</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+		<!--	Java 8 Date/time	-->
+		<dependency>
+			<groupId>com.fasterxml.jackson.datatype</groupId>
+			<artifactId>jackson-datatype-jsr310</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>com.h2database</groupId>
+			<artifactId>h2</artifactId>
+			<scope>runtime</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.openjfx</groupId>
+			<artifactId>javafx-controls</artifactId>
+			<version>17.0.1</version>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-validation</artifactId>
+			<version>2.7.1</version>
+		</dependency>
+		<dependency>
+			<groupId>org.projectlombok</groupId>
+			<artifactId>lombok</artifactId>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+				<configuration>
+					<excludes>
+						<exclude>
+							<groupId>org.projectlombok</groupId>
+							<artifactId>lombok</artifactId>
+						</exclude>
+					</excludes>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>
diff --git a/todotask/src/main/java/com/manabie/todotask/TodotaskApplication.java b/todotask/src/main/java/com/manabie/todotask/TodotaskApplication.java
new file mode 100644
index 000000000..ff88b716a
--- /dev/null
+++ b/todotask/src/main/java/com/manabie/todotask/TodotaskApplication.java
@@ -0,0 +1,13 @@
+package com.manabie.todotask;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class TodotaskApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(TodotaskApplication.class, args);
+	}
+
+}
diff --git a/todotask/src/main/java/com/manabie/todotask/body/AddTaskRequest.java b/todotask/src/main/java/com/manabie/todotask/body/AddTaskRequest.java
new file mode 100644
index 000000000..80d43c446
--- /dev/null
+++ b/todotask/src/main/java/com/manabie/todotask/body/AddTaskRequest.java
@@ -0,0 +1,23 @@
+package com.manabie.todotask.body;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Data;
+
+import javax.validation.constraints.NotNull;
+import java.time.ZonedDateTime;
+
+@Data
+public class AddTaskRequest {
+    @JsonProperty("target_date")
+    @NotNull(message = "Target date must not be null")
+    private ZonedDateTime targetDate;
+
+    @JsonProperty("user_id")
+    @NotNull(message = "User id must not be null")
+    private Integer userId;
+
+    @JsonProperty("task_name")
+    private String taskName;
+    @JsonProperty("task_description")
+    private String taskDescription;
+}
diff --git a/todotask/src/main/java/com/manabie/todotask/body/BaseResponse.java b/todotask/src/main/java/com/manabie/todotask/body/BaseResponse.java
new file mode 100644
index 000000000..e2f1bbb64
--- /dev/null
+++ b/todotask/src/main/java/com/manabie/todotask/body/BaseResponse.java
@@ -0,0 +1,20 @@
+package com.manabie.todotask.body;
+
+import lombok.Data;
+
+@Data
+public class BaseResponse {
+    private int status;
+    private String message;
+    private Object data;
+
+    public BaseResponse(int status, String message) {
+        this.status = status;
+        this.message = message;
+    }
+
+    public BaseResponse withData(Object data) {
+        this.data = data;
+        return this;
+    }
+}
diff --git a/todotask/src/main/java/com/manabie/todotask/controller/TaskController.java b/todotask/src/main/java/com/manabie/todotask/controller/TaskController.java
new file mode 100644
index 000000000..d5393b028
--- /dev/null
+++ b/todotask/src/main/java/com/manabie/todotask/controller/TaskController.java
@@ -0,0 +1,37 @@
+package com.manabie.todotask.controller;
+
+import com.manabie.todotask.body.AddTaskRequest;
+import com.manabie.todotask.body.BaseResponse;
+import com.manabie.todotask.entity.Task;
+import com.manabie.todotask.exception.ReachLimitException;
+import com.manabie.todotask.exception.UserNotFoundException;
+import com.manabie.todotask.service.TaskService;
+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.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+import javax.validation.Valid;
+
+@Controller
+@RequestMapping("/task")
+public class TaskController {
+    @Autowired
+    TaskService taskService;
+
+    @PutMapping("/add")
+    public @ResponseBody ResponseEntity<BaseResponse> addTask(@RequestBody @Valid AddTaskRequest request) {
+        try {
+            Task task = taskService.addTask(request);
+            return ResponseEntity.ok(new BaseResponse(HttpStatus.OK.value(), "success").withData(task));
+        } catch (ReachLimitException | UserNotFoundException e) {
+            return ResponseEntity.badRequest().body(new BaseResponse(HttpStatus.BAD_REQUEST.value(), e.getMessage()));
+        } catch (Exception e) {
+            return ResponseEntity.internalServerError().body(new BaseResponse(HttpStatus.INTERNAL_SERVER_ERROR.value(), "Internal Server Error"));
+        }
+    }
+}
diff --git a/todotask/src/main/java/com/manabie/todotask/entity/Task.java b/todotask/src/main/java/com/manabie/todotask/entity/Task.java
new file mode 100644
index 000000000..5eb892c7d
--- /dev/null
+++ b/todotask/src/main/java/com/manabie/todotask/entity/Task.java
@@ -0,0 +1,34 @@
+package com.manabie.todotask.entity;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Data;
+
+import javax.persistence.*;
+import java.time.ZonedDateTime;
+import java.util.Date;
+
+@Data
+@Entity
+@Table(name = "`tasks`")
+public class Task {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "`id`")
+    private Integer id;
+
+    @JsonProperty("user_id")
+    @Column(name = "`user_id`")
+    private Integer userId;
+
+    @JsonProperty("description")
+    @Column(name = "`description`")
+    private String description;
+
+    @JsonProperty("name")
+    @Column(name = "`name`")
+    private String name;
+
+    @JsonProperty("target_date")
+    @Column(name = "`target_date`")
+    private ZonedDateTime targetDate;
+}
diff --git a/todotask/src/main/java/com/manabie/todotask/entity/UserDailyLimit.java b/todotask/src/main/java/com/manabie/todotask/entity/UserDailyLimit.java
new file mode 100644
index 000000000..f0ef54f9f
--- /dev/null
+++ b/todotask/src/main/java/com/manabie/todotask/entity/UserDailyLimit.java
@@ -0,0 +1,20 @@
+package com.manabie.todotask.entity;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Data;
+
+import javax.persistence.*;
+
+@Entity
+@Data
+@Table(name = "`user_daily_limits`")
+public class UserDailyLimit {
+    @Id
+    @JsonProperty("user_id")
+    @Column(name="`user_id`")
+    private Integer userId;
+
+    @JsonProperty("daily_task_limit")
+    @Column(name="`daily_task_limit`")
+    private Integer dailyTaskLimit;
+}
diff --git a/todotask/src/main/java/com/manabie/todotask/exception/ReachLimitException.java b/todotask/src/main/java/com/manabie/todotask/exception/ReachLimitException.java
new file mode 100644
index 000000000..bae562310
--- /dev/null
+++ b/todotask/src/main/java/com/manabie/todotask/exception/ReachLimitException.java
@@ -0,0 +1,16 @@
+package com.manabie.todotask.exception;
+
+import lombok.Data;
+
+import java.time.ZonedDateTime;
+
+@Data
+public class ReachLimitException extends RuntimeException{
+    protected Integer userId;
+    protected ZonedDateTime dateTime;
+    public ReachLimitException(Integer userId, ZonedDateTime date){
+        super("User " + userId + " has reached max task limit at date " + date);
+        this.userId = userId;
+        this.dateTime = date;
+    }
+}
diff --git a/todotask/src/main/java/com/manabie/todotask/exception/UserNotFoundException.java b/todotask/src/main/java/com/manabie/todotask/exception/UserNotFoundException.java
new file mode 100644
index 000000000..e96bd6347
--- /dev/null
+++ b/todotask/src/main/java/com/manabie/todotask/exception/UserNotFoundException.java
@@ -0,0 +1,14 @@
+package com.manabie.todotask.exception;
+
+import lombok.Data;
+
+import java.util.Date;
+
+@Data
+public class UserNotFoundException extends RuntimeException{
+    private Integer userId;
+    public UserNotFoundException(Integer userId){
+        super("User with id " + userId + " does not exist");
+        this.userId = userId;
+    }
+}
diff --git a/todotask/src/main/java/com/manabie/todotask/handler/InvalidRequestHandler.java b/todotask/src/main/java/com/manabie/todotask/handler/InvalidRequestHandler.java
new file mode 100644
index 000000000..b096c07f9
--- /dev/null
+++ b/todotask/src/main/java/com/manabie/todotask/handler/InvalidRequestHandler.java
@@ -0,0 +1,17 @@
+package com.manabie.todotask.handler;
+
+import com.manabie.todotask.body.BaseResponse;
+import org.springframework.http.HttpStatus;
+import org.springframework.validation.BindException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+@RestControllerAdvice
+public class InvalidRequestHandler {
+    @ExceptionHandler(BindException.class)
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    public BaseResponse handleBindException(BindException e) {
+        return new BaseResponse(HttpStatus.BAD_REQUEST.value(), e.getBindingResult().getAllErrors().get(0).getDefaultMessage());
+    }
+}
diff --git a/todotask/src/main/java/com/manabie/todotask/repository/TaskRepository.java b/todotask/src/main/java/com/manabie/todotask/repository/TaskRepository.java
new file mode 100644
index 000000000..aea9332bf
--- /dev/null
+++ b/todotask/src/main/java/com/manabie/todotask/repository/TaskRepository.java
@@ -0,0 +1,15 @@
+package com.manabie.todotask.repository;
+
+import com.manabie.todotask.entity.Task;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.stereotype.Repository;
+
+import java.time.ZonedDateTime;
+import java.util.Date;
+
+@Repository
+public interface TaskRepository extends CrudRepository<Task, Integer> {
+    @Query("SELECT COUNT (t) FROM Task t where t.userId = :userId and t.targetDate >= :startDate and t.targetDate < :endDate")
+    int countTaskByUserIdAndTargetDate(Integer userId, ZonedDateTime startDate, ZonedDateTime endDate);
+}
diff --git a/todotask/src/main/java/com/manabie/todotask/repository/UserRepository.java b/todotask/src/main/java/com/manabie/todotask/repository/UserRepository.java
new file mode 100644
index 000000000..52c89cf9e
--- /dev/null
+++ b/todotask/src/main/java/com/manabie/todotask/repository/UserRepository.java
@@ -0,0 +1,11 @@
+package com.manabie.todotask.repository;
+
+import com.manabie.todotask.entity.UserDailyLimit;
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.stereotype.Repository;
+
+import javax.persistence.Entity;
+
+@Repository
+public interface UserRepository extends CrudRepository<UserDailyLimit, Integer> {
+}
diff --git a/todotask/src/main/java/com/manabie/todotask/service/TaskService.java b/todotask/src/main/java/com/manabie/todotask/service/TaskService.java
new file mode 100644
index 000000000..9aec1658c
--- /dev/null
+++ b/todotask/src/main/java/com/manabie/todotask/service/TaskService.java
@@ -0,0 +1,8 @@
+package com.manabie.todotask.service;
+
+import com.manabie.todotask.body.AddTaskRequest;
+import com.manabie.todotask.entity.Task;
+
+public interface TaskService {
+    Task addTask(AddTaskRequest request);
+}
diff --git a/todotask/src/main/java/com/manabie/todotask/service/TaskServiceImpl.java b/todotask/src/main/java/com/manabie/todotask/service/TaskServiceImpl.java
new file mode 100644
index 000000000..361d4fe41
--- /dev/null
+++ b/todotask/src/main/java/com/manabie/todotask/service/TaskServiceImpl.java
@@ -0,0 +1,42 @@
+package com.manabie.todotask.service;
+
+import com.manabie.todotask.body.AddTaskRequest;
+import com.manabie.todotask.entity.Task;
+import com.manabie.todotask.exception.ReachLimitException;
+import com.manabie.todotask.exception.UserNotFoundException;
+import com.manabie.todotask.repository.TaskRepository;
+import com.manabie.todotask.repository.UserRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.time.ZonedDateTime;
+
+@Service
+public class TaskServiceImpl implements TaskService{
+    @Autowired
+    TaskRepository taskRepository;
+    @Autowired
+    UserRepository userRepository;
+
+    public Task addTask(AddTaskRequest request){
+        ZonedDateTime startTime = request.getTargetDate().toLocalDate().atStartOfDay().atZone(request.getTargetDate().getZone());
+        ZonedDateTime endTime = request.getTargetDate().toLocalDate().atStartOfDay().plusDays(1).atZone(request.getTargetDate().getZone());
+        return userRepository.findById(request.getUserId()).map(userDailyLimit -> {
+            int taskCount = taskRepository.countTaskByUserIdAndTargetDate(request.getUserId(), startTime, endTime);
+            if (taskCount < userDailyLimit.getDailyTaskLimit()) {
+                return taskRepository.save(buildFromRequest(request));
+            } else {
+                throw new ReachLimitException(request.getUserId(), request.getTargetDate());
+            }
+        }).orElseThrow(() -> new UserNotFoundException(request.getUserId()));
+    }
+
+    private Task buildFromRequest(AddTaskRequest request){
+        Task task = new Task();
+        task.setUserId(request.getUserId());
+        task.setDescription(request.getTaskDescription());
+        task.setName(request.getTaskName());
+        task.setTargetDate(request.getTargetDate());
+        return task;
+    }
+}
diff --git a/todotask/src/main/resources/application.properties b/todotask/src/main/resources/application.properties
new file mode 100644
index 000000000..77ef15cff
--- /dev/null
+++ b/todotask/src/main/resources/application.properties
@@ -0,0 +1,8 @@
+spring.datasource.url=jdbc:h2:mem:testdb
+spring.datasource.driverClassName=org.h2.Driver
+spring.datasource.username=sa
+spring.datasource.password=password
+spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
+spring.h2.console.enabled=true
+spring.jpa.hibernate.ddl-auto=none
+spring.sql.init.mode=always
\ No newline at end of file
diff --git a/todotask/src/main/resources/data.sql b/todotask/src/main/resources/data.sql
new file mode 100644
index 000000000..1545591e0
--- /dev/null
+++ b/todotask/src/main/resources/data.sql
@@ -0,0 +1 @@
+insert into "user_daily_limits" ("user_id", "daily_task_limit") values (1, 5)
\ No newline at end of file
diff --git a/todotask/src/main/resources/schema.sql b/todotask/src/main/resources/schema.sql
new file mode 100644
index 000000000..2f90a1813
--- /dev/null
+++ b/todotask/src/main/resources/schema.sql
@@ -0,0 +1,15 @@
+DROP TABLE IF EXISTS tasks;
+DROP TABLE IF EXISTS user_daily_limits;
+
+CREATE TABLE IF NOT EXISTS "tasks" (
+        "id" int AUTO_INCREMENT PRIMARY KEY,
+        "user_id" int,
+        "name" VARCHAR ,
+        "description" VARCHAR,
+        "target_date" TIMESTAMP
+);
+
+CREATE TABLE IF NOT EXISTS "user_daily_limits" (
+        "user_id" int PRIMARY KEY,
+        "daily_task_limit" int
+);
diff --git a/todotask/src/test/java/com/manabie/todotask/controller/TaskControllerIntegrationTest.java b/todotask/src/test/java/com/manabie/todotask/controller/TaskControllerIntegrationTest.java
new file mode 100644
index 000000000..740e49421
--- /dev/null
+++ b/todotask/src/test/java/com/manabie/todotask/controller/TaskControllerIntegrationTest.java
@@ -0,0 +1,136 @@
+package com.manabie.todotask.controller;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.manabie.todotask.body.AddTaskRequest;
+import com.manabie.todotask.entity.UserDailyLimit;
+import com.manabie.todotask.repository.TaskRepository;
+import com.manabie.todotask.repository.UserRepository;
+import com.manabie.todotask.service.TaskService;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration;
+import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.http.MediaType;
+import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.RequestBuilder;
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
+
+import java.time.ZonedDateTime;
+import java.util.Optional;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+@SpringBootTest
+@AutoConfigureMockMvc
+@EnableAutoConfiguration(exclude= SecurityAutoConfiguration.class)
+@AutoConfigureTestDatabase
+@DirtiesContext(classMode = DirtiesContext.ClassMode.BEFORE_EACH_TEST_METHOD)
+class TaskControllerIntegrationTest {
+    @Autowired
+    MockMvc mockMvc;
+
+    @Autowired
+    TaskService taskService;
+    @Autowired
+    UserRepository userRepository;
+    @Autowired
+    TaskRepository taskRepository;
+
+    ObjectMapper mapper = new ObjectMapper().findAndRegisterModules();
+
+    @BeforeEach
+    public void setup(){
+        taskRepository.deleteAll();
+        userRepository.deleteAll();
+        UserDailyLimit userDailyLimit = new UserDailyLimit();
+        userDailyLimit.setUserId(1);
+        userDailyLimit.setDailyTaskLimit(5);
+        userRepository.save(userDailyLimit);
+    }
+
+    @Test
+    void addTaskAndReturnSuccess() throws Exception {
+        int userId = 1;
+        ZonedDateTime targetDate = ZonedDateTime.parse("2022-07-08T00:00:00Z");
+        AddTaskRequest request = new AddTaskRequest();
+        request.setUserId(userId);
+        request.setTaskName("test");
+        request.setTaskDescription("test");
+        request.setTargetDate(targetDate);
+
+        RequestBuilder requestBuilder = MockMvcRequestBuilders
+                .put("/task/add")
+                .content(mapper.writeValueAsBytes(request))
+                .contentType(MediaType.APPLICATION_JSON);
+
+        mockMvc.perform(requestBuilder)
+                .andDo(print())
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$.status", is(200)))
+                .andExpect(jsonPath("$.data.id", is(1)));
+    }
+
+    @Test
+    void addTaskWithUserNotExist() throws Exception {
+        int userId = 2;
+        ZonedDateTime targetDate = ZonedDateTime.parse("2022-07-08T00:00:00Z");
+        AddTaskRequest request = new AddTaskRequest();
+        request.setUserId(userId);
+        request.setTaskName("test");
+        request.setTaskDescription("test");
+        request.setTargetDate(targetDate);
+
+        RequestBuilder requestBuilder = MockMvcRequestBuilders
+                .put("/task/add")
+                .content(mapper.writeValueAsBytes(request))
+                .contentType(MediaType.APPLICATION_JSON);
+
+        mockMvc.perform(requestBuilder)
+                .andDo(print())
+                .andExpect(status().isBadRequest())
+                .andExpect(jsonPath("$.status", is(400)))
+                .andExpect(jsonPath("$.message", is("User with id " + userId + " does not exist")));
+    }
+
+    @Test
+    void addTaskWithReachLimitTask() throws Exception {
+        int userId = 1;
+        Optional<UserDailyLimit> userDailyLimitOpt = userRepository.findById(userId);
+        assert (userDailyLimitOpt.isPresent());
+        UserDailyLimit userDailyLimit = userDailyLimitOpt.get();
+
+        ZonedDateTime targetDate = ZonedDateTime.parse("2022-07-08T00:00:00Z");
+        AddTaskRequest request = new AddTaskRequest();
+        request.setUserId(userId);
+        request.setTaskName("test");
+        request.setTaskDescription("test");
+        request.setTargetDate(targetDate);
+
+        RequestBuilder requestBuilder = MockMvcRequestBuilders
+                .put("/task/add")
+                .content(mapper.writeValueAsBytes(request))
+                .contentType(MediaType.APPLICATION_JSON);
+
+        //add until reach limit
+        for (int i = 0; i < userDailyLimit.getDailyTaskLimit(); i ++) {
+            mockMvc.perform(requestBuilder)
+                    .andDo(print())
+                    .andExpect(status().isOk())
+                    .andExpect(jsonPath("$.status", is(200)))
+                    .andExpect(jsonPath("$.data.user_id", is(userId)));
+        }
+        //add when limit is reached
+        mockMvc.perform(requestBuilder)
+                .andDo(print())
+                .andExpect(status().isBadRequest())
+                .andExpect(jsonPath("$.status", is(400)));
+    }
+}
\ No newline at end of file
diff --git a/todotask/src/test/java/com/manabie/todotask/repository/TaskRepositoryUnitTest.java b/todotask/src/test/java/com/manabie/todotask/repository/TaskRepositoryUnitTest.java
new file mode 100644
index 000000000..a8f414cd1
--- /dev/null
+++ b/todotask/src/test/java/com/manabie/todotask/repository/TaskRepositoryUnitTest.java
@@ -0,0 +1,92 @@
+package com.manabie.todotask.repository;
+
+import com.manabie.todotask.entity.Task;
+import com.manabie.todotask.entity.UserDailyLimit;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.annotation.DirtiesContext;
+
+import java.time.ZonedDateTime;
+import java.util.Optional;
+
+@SpringBootTest
+@AutoConfigureTestDatabase
+@DirtiesContext(classMode = DirtiesContext.ClassMode.BEFORE_EACH_TEST_METHOD)
+class TaskRepositoryUnitTest {
+
+    @Autowired
+    TaskRepository taskRepository;
+    @Test
+    public void addAndFind(){
+        int userId = 1;
+        ZonedDateTime targetDate = ZonedDateTime.parse("2022-07-08T00:00:00Z");
+
+        Task task = new Task();
+        task.setName("test");
+        task.setUserId(userId);
+        task.setDescription("test");
+        task.setTargetDate(targetDate);
+        Task t = taskRepository.save(task);
+        System.out.println(t);
+        assert(t.getId().equals(1));
+
+        Optional<Task> indbOpt = taskRepository.findById(t.getId());
+        assert (indbOpt.isPresent());
+        Task indb = indbOpt.get();
+
+        assert (indbOpt.get().getUserId().equals(userId));
+        assert (indbOpt.get().getName().equals("test"));
+        assert (indbOpt.get().getDescription().equals("test"));
+        assert (indbOpt.get().getTargetDate().toInstant().equals(targetDate.toInstant()));
+
+    }
+
+    @Test
+    void countTaskByUserIdAndTargetDate() {
+        int userId = 1;
+        int userId2 = 2;
+        ZonedDateTime targetDate = ZonedDateTime.parse("2022-07-08T00:00:00Z");
+        ZonedDateTime targetDate2 = ZonedDateTime.parse("2022-07-09T00:00:00Z");
+
+        Task task = new Task();
+        task.setName("test");
+        task.setUserId(userId);
+        task.setDescription("test");
+        task.setTargetDate(targetDate);
+        Task t = taskRepository.save(task);
+        System.out.println(t);
+        assert(t.getId().equals(1));
+
+        Task task2 = new Task();
+        task2.setName("test");
+        task2.setUserId(userId);
+        task2.setDescription("test");
+        task2.setTargetDate(targetDate);
+        Task t2 = taskRepository.save(task2);
+        System.out.println(t2);
+        assert(t2.getId().equals(2));
+
+        Task task3 = new Task();
+        task3.setName("test");
+        task3.setUserId(userId2);
+        task3.setDescription("test");
+        task3.setTargetDate(targetDate);
+        Task t3 = taskRepository.save(task3);
+        System.out.println(t3);
+        assert(t3.getId().equals(3));
+
+        Task task4 = new Task();
+        task4.setName("test");
+        task4.setUserId(userId);
+        task4.setDescription("test");
+        task4.setTargetDate(targetDate2);
+        Task t4 = taskRepository.save(task4);
+        System.out.println(t4);
+        assert(t4.getId().equals(4));
+
+        int count = taskRepository.countTaskByUserIdAndTargetDate(userId, targetDate, targetDate.plusDays(1));
+        assert (count == 2);
+    }
+}
\ No newline at end of file
diff --git a/todotask/src/test/java/com/manabie/todotask/repository/UserRepositoryUnitTest.java b/todotask/src/test/java/com/manabie/todotask/repository/UserRepositoryUnitTest.java
new file mode 100644
index 000000000..7091686d0
--- /dev/null
+++ b/todotask/src/test/java/com/manabie/todotask/repository/UserRepositoryUnitTest.java
@@ -0,0 +1,29 @@
+package com.manabie.todotask.repository;
+
+import com.manabie.todotask.entity.UserDailyLimit;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.annotation.DirtiesContext;
+
+import java.util.Optional;
+
+@SpringBootTest
+@DirtiesContext(classMode = DirtiesContext.ClassMode.BEFORE_EACH_TEST_METHOD)
+class UserRepositoryUnitTest {
+    @Autowired
+    UserRepository userRepository;
+
+    @Test
+    public void addAndFind(){
+        UserDailyLimit userDailyLimit = new UserDailyLimit();
+        userDailyLimit.setUserId(1);
+        userDailyLimit.setDailyTaskLimit(5);
+        UserDailyLimit added = userRepository.save(userDailyLimit);
+
+        Optional<UserDailyLimit> indbOpt = userRepository.findById(userDailyLimit.getUserId());
+        assert (indbOpt.isPresent());
+        assert (indbOpt.get().getUserId().equals(userDailyLimit.getUserId()));
+        assert (indbOpt.get().getDailyTaskLimit().equals(userDailyLimit.getDailyTaskLimit()));
+    }
+}
\ No newline at end of file
diff --git a/todotask/src/test/java/com/manabie/todotask/service/TaskServiceImplIntegrationTest.java b/todotask/src/test/java/com/manabie/todotask/service/TaskServiceImplIntegrationTest.java
new file mode 100644
index 000000000..192007b6f
--- /dev/null
+++ b/todotask/src/test/java/com/manabie/todotask/service/TaskServiceImplIntegrationTest.java
@@ -0,0 +1,104 @@
+package com.manabie.todotask.service;
+
+import com.manabie.todotask.body.AddTaskRequest;
+import com.manabie.todotask.entity.Task;
+import com.manabie.todotask.entity.UserDailyLimit;
+import com.manabie.todotask.exception.ReachLimitException;
+import com.manabie.todotask.exception.UserNotFoundException;
+import com.manabie.todotask.repository.TaskRepository;
+import com.manabie.todotask.repository.UserRepository;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.annotation.DirtiesContext;
+
+import java.time.ZonedDateTime;
+import java.util.Optional;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.jupiter.api.Assertions.*;
+import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
+
+@SpringBootTest
+@AutoConfigureTestDatabase
+@DirtiesContext(classMode = DirtiesContext.ClassMode.BEFORE_EACH_TEST_METHOD)
+class TaskServiceImplIntegrationTest {
+    @Autowired
+    TaskRepository taskRepository;
+
+    @Autowired
+    UserRepository userRepository;
+
+    @Autowired
+    TaskServiceImpl taskService;
+
+    @BeforeEach
+    public void setup(){
+        taskRepository.deleteAll();
+        userRepository.deleteAll();
+        UserDailyLimit userDailyLimit = new UserDailyLimit();
+        userDailyLimit.setUserId(1);
+        userDailyLimit.setDailyTaskLimit(5);
+        userRepository.save(userDailyLimit);
+    }
+
+    @Test
+    void addTaskAndSuccess() {
+        int userId = 1;
+        ZonedDateTime targetDate = ZonedDateTime.parse("2022-07-08T00:00:00Z");
+
+        AddTaskRequest request = new AddTaskRequest();
+        request.setUserId(userId);
+        request.setTaskName("test");
+        request.setTaskDescription("test");
+        request.setTargetDate(targetDate);
+
+        Task task = taskService.addTask(request);
+
+        assert(task.getId().equals(1));
+        assert(task.getUserId().equals(userId));
+    }
+
+    @Test
+    void addTaskWithUserNotExist() {
+        int userId = 2;
+        ZonedDateTime targetDate = ZonedDateTime.parse("2022-07-08T00:00:00Z");
+
+        AddTaskRequest request = new AddTaskRequest();
+        request.setUserId(userId);
+        request.setTaskName("test");
+        request.setTaskDescription("test");
+        request.setTargetDate(targetDate);
+
+        UserNotFoundException e = assertThrows(UserNotFoundException.class, () -> taskService.addTask(request));
+
+        assert(e.getUserId().equals(userId));
+    }
+
+    @Test
+    void addTaskWithUserReachLimitTask() {
+        int userId = 1;
+        Optional<UserDailyLimit> userDailyLimitOpt = userRepository.findById(userId);
+        assert (userDailyLimitOpt.isPresent());
+        UserDailyLimit userDailyLimit = userDailyLimitOpt.get();
+
+        ZonedDateTime targetDate = ZonedDateTime.parse("2022-07-08T00:00:00Z");
+
+        AddTaskRequest request = new AddTaskRequest();
+        request.setUserId(userId);
+        request.setTaskName("test");
+        request.setTaskDescription("test");
+        request.setTargetDate(targetDate);
+
+        ReachLimitException e = assertThrows(ReachLimitException.class, () -> {
+            for (int i = 0; i <= userDailyLimit.getDailyTaskLimit(); i ++) {
+                taskService.addTask(request);
+            }
+        });
+        assert(e.getDateTime().equals(request.getTargetDate()));
+        assert(e.getUserId().equals(userId));
+    }
+}
\ No newline at end of file