diff --git a/spring-boot/hibernate-search/HELP.md b/spring-boot/hibernate-search/HELP.md
new file mode 100644
index 0000000..408788d
--- /dev/null
+++ b/spring-boot/hibernate-search/HELP.md
@@ -0,0 +1,24 @@
+# Getting Started
+
+### Reference Documentation
+For further reference, please consider the following sections:
+
+* [Official Gradle documentation](https://docs.gradle.org)
+* [Spring Boot Gradle Plugin Reference Guide](https://docs.spring.io/spring-boot/docs/2.3.3.RELEASE/gradle-plugin/reference/html/)
+* [Create an OCI image](https://docs.spring.io/spring-boot/docs/2.3.3.RELEASE/gradle-plugin/reference/html/#build-image)
+* [Spring Web](https://docs.spring.io/spring-boot/docs/2.3.3.RELEASE/reference/htmlsingle/#boot-features-developing-web-applications)
+* [Spring Data JPA](https://docs.spring.io/spring-boot/docs/2.3.3.RELEASE/reference/htmlsingle/#boot-features-jpa-and-spring-data)
+
+### Guides
+The following guides illustrate how to use some features concretely:
+
+* [Building a RESTful Web Service](https://spring.io/guides/gs/rest-service/)
+* [Serving Web Content with Spring MVC](https://spring.io/guides/gs/serving-web-content/)
+* [Building REST services with Spring](https://spring.io/guides/tutorials/bookmarks/)
+* [Accessing Data with JPA](https://spring.io/guides/gs/accessing-data-jpa/)
+
+### Additional Links
+These additional references should also help you:
+
+* [Gradle Build Scans – insights for your project's build](https://scans.gradle.com#gradle)
+
diff --git a/spring-boot/hibernate-search/build.gradle b/spring-boot/hibernate-search/build.gradle
new file mode 100644
index 0000000..340b905
--- /dev/null
+++ b/spring-boot/hibernate-search/build.gradle
@@ -0,0 +1,40 @@
+plugins {
+    id 'org.springframework.boot' version '2.2.2.RELEASE'
+    id 'io.spring.dependency-management' version '1.0.10.RELEASE'
+    id 'java'
+}
+
+group = 'io.reflectoring'
+version = '1.0.0'
+sourceCompatibility = '11'
+
+configurations {
+    compileOnly {
+        extendsFrom annotationProcessor
+    }
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
+    implementation 'org.springframework.boot:spring-boot-starter-web'
+    implementation 'org.hibernate:hibernate-search-orm:5.11.5.Final'
+    implementation 'org.hibernate:hibernate-search-elasticsearch:5.11.5.Final'
+    implementation 'org.mapstruct:mapstruct:1.3.1.Final'
+
+    compileOnly 'org.projectlombok:lombok'
+    runtimeOnly 'com.h2database:h2'
+    annotationProcessor 'org.projectlombok:lombok'
+    annotationProcessor 'org.mapstruct:mapstruct-processor:1.3.1.Final'
+
+    testImplementation('org.springframework.boot:spring-boot-starter-test') {
+        exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
+    }
+}
+
+test {
+    useJUnitPlatform()
+}
diff --git a/spring-boot/hibernate-search/gradle/wrapper/gradle-wrapper.jar b/spring-boot/hibernate-search/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..62d4c05
Binary files /dev/null and b/spring-boot/hibernate-search/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/spring-boot/hibernate-search/gradle/wrapper/gradle-wrapper.properties b/spring-boot/hibernate-search/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..d651592
--- /dev/null
+++ b/spring-boot/hibernate-search/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon Sep 07 12:46:19 IST 2020
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.4.1-all.zip
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
diff --git a/spring-boot/hibernate-search/gradlew b/spring-boot/hibernate-search/gradlew
new file mode 100644
index 0000000..8f89047
--- /dev/null
+++ b/spring-boot/hibernate-search/gradlew
@@ -0,0 +1,184 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+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
+SAVED="$(pwd)"
+cd "$(dirname \"$PRG\")/" >/dev/null
+APP_HOME="$(pwd -P)"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=$(basename "$0")
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn() {
+  echo "$*"
+}
+
+die() {
+  echo
+  echo "$*"
+  echo
+  exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$(uname)" in
+CYGWIN*)
+  cygwin=true
+  ;;
+Darwin*)
+  darwin=true
+  ;;
+MINGW*)
+  msys=true
+  ;;
+NONSTOP*)
+  nonstop=true
+  ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ]; then
+  if [ -x "$JAVA_HOME/jre/sh/java" ]; then
+    # IBM's JDK on AIX uses strange locations for the executables
+    JAVACMD="$JAVA_HOME/jre/sh/java"
+  else
+    JAVACMD="$JAVA_HOME/bin/java"
+  fi
+  if [ ! -x "$JAVACMD" ]; then
+    die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+  fi
+else
+  JAVACMD="java"
+  which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ]; then
+  MAX_FD_LIMIT=$(ulimit -H -n)
+  if [ $? -eq 0 ]; then
+    if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ]; then
+      MAX_FD="$MAX_FD_LIMIT"
+    fi
+    ulimit -n $MAX_FD
+    if [ $? -ne 0 ]; then
+      warn "Could not set maximum file descriptor limit: $MAX_FD"
+    fi
+  else
+    warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+  fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+  GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ]; then
+  APP_HOME=$(cygpath --path --mixed "$APP_HOME")
+  CLASSPATH=$(cygpath --path --mixed "$CLASSPATH")
+
+  JAVACMD=$(cygpath --unix "$JAVACMD")
+
+  # We build the pattern for arguments to be converted via cygpath
+  ROOTDIRSRAW=$(find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null)
+  SEP=""
+  for dir in $ROOTDIRSRAW; do
+    ROOTDIRS="$ROOTDIRS$SEP$dir"
+    SEP="|"
+  done
+  OURCYGPATTERN="(^($ROOTDIRS))"
+  # Add a user-defined pattern to the cygpath arguments
+  if [ "$GRADLE_CYGPATTERN" != "" ]; then
+    OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+  fi
+  # Now convert the arguments - kludge to limit ourselves to /bin/sh
+  i=0
+  for arg in "$@"; do
+    CHECK=$(echo "$arg" | egrep -c "$OURCYGPATTERN" -)
+    CHECK2=$(echo "$arg" | egrep -c "^-") ### Determine if an option
+
+    if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ]; then ### Added a condition
+      eval $(echo args$i)=$(cygpath --path --ignore --mixed "$arg")
+    else
+      eval $(echo args$i)="\"$arg\""
+    fi
+    i=$(expr $i + 1)
+  done
+  case $i in
+  0) set -- ;;
+  1) set -- "$args0" ;;
+  2) set -- "$args0" "$args1" ;;
+  3) set -- "$args0" "$args1" "$args2" ;;
+  4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+  5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+  6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+  7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+  8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+  9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+  esac
+fi
+
+# Escape application args
+save() {
+  for i; do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/"; done
+  echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"
diff --git a/spring-boot/hibernate-search/gradlew.bat b/spring-boot/hibernate-search/gradlew.bat
new file mode 100644
index 0000000..5093609
--- /dev/null
+++ b/spring-boot/hibernate-search/gradlew.bat
@@ -0,0 +1,104 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/spring-boot/hibernate-search/settings.gradle b/spring-boot/hibernate-search/settings.gradle
new file mode 100644
index 0000000..8b43560
--- /dev/null
+++ b/spring-boot/hibernate-search/settings.gradle
@@ -0,0 +1 @@
+rootProject.name = 'hibernate-search'
diff --git a/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/HibernateSearchApplication.java b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/HibernateSearchApplication.java
new file mode 100644
index 0000000..026b2bd
--- /dev/null
+++ b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/HibernateSearchApplication.java
@@ -0,0 +1,15 @@
+package io.reflectoring.hibernatesearch;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class HibernateSearchApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(HibernateSearchApplication.class, args);
+    }
+
+
+
+}
diff --git a/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/configuration/StartupEvent.java b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/configuration/StartupEvent.java
new file mode 100644
index 0000000..a1a32eb
--- /dev/null
+++ b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/configuration/StartupEvent.java
@@ -0,0 +1,25 @@
+package io.reflectoring.hibernatesearch.configuration;
+
+import io.reflectoring.hibernatesearch.service.IndexingService;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.boot.context.event.ApplicationReadyEvent;
+import org.springframework.context.ApplicationListener;
+import org.springframework.stereotype.Component;
+
+@Component
+@Slf4j
+@RequiredArgsConstructor
+public class StartupEvent implements ApplicationListener<ApplicationReadyEvent> {
+
+    private final IndexingService service;
+
+    @Override
+    public void onApplicationEvent(ApplicationReadyEvent event) {
+        try {
+            service.initiateIndexing();
+        } catch (InterruptedException e) {
+            log.error("Failed to reindex entities ",e);
+        }
+    }
+}
diff --git a/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/IndexController.java b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/IndexController.java
new file mode 100644
index 0000000..0c46438
--- /dev/null
+++ b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/IndexController.java
@@ -0,0 +1,63 @@
+package io.reflectoring.hibernatesearch.controller;
+
+import io.reflectoring.hibernatesearch.controller.dto.PostResponse;
+import io.reflectoring.hibernatesearch.controller.dto.UserResponse;
+import io.reflectoring.hibernatesearch.controller.mapper.PostMapper;
+import io.reflectoring.hibernatesearch.controller.mapper.UserMapper;
+import io.reflectoring.hibernatesearch.service.IndexingService;
+import io.reflectoring.hibernatesearch.service.SearchService;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+@RestController
+@Slf4j
+@RequiredArgsConstructor
+class IndexController {
+    private final IndexingService indexingService;
+    private final SearchService searchService;
+    private final PostMapper postMapper;
+    private final UserMapper userMapper;
+
+    @PostMapping("/reindex")
+    public void reindex() throws InterruptedException {
+        indexingService.initiateIndexing();
+    }
+
+    @GetMapping("/user")
+    public List<UserResponse> getUser(@RequestParam String first,
+                                      @RequestParam Integer max,
+                                      @RequestParam Integer page){
+        return searchService.getUserByFirst(first, max, page)
+                .stream().map(userMapper::toResponse).collect(Collectors.toList());
+    }
+
+    @GetMapping("/user/projection")
+    public List<UserResponse> getProjectUser(@RequestParam String first,
+                                             @RequestParam Integer max,
+                                             @RequestParam Integer page){
+        return searchService.getUserByFirstWithProjection(first, max, page)
+                .stream().map(userMapper::toResponse).collect(Collectors.toList());
+    }
+
+    @GetMapping("/post")
+    public List<PostResponse> getPost(@RequestParam Long likeCount,
+                                      @RequestParam(required = false) String hashTags,
+                                      @RequestParam(required = false) String tag){
+        return searchService.getBasedOnLikeCountTags(likeCount, hashTags, tag)
+                .stream().map(postMapper::toResponse).collect(Collectors.toList());
+    }
+
+    @GetMapping("/post/word")
+    public List<PostResponse> getPostByWord(@RequestParam String word){
+        return searchService.getPostBasedOnWord(word)
+                .stream().map(postMapper::toResponse).collect(Collectors.toList());
+    }
+
+}
diff --git a/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/dto/PostResponse.java b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/dto/PostResponse.java
new file mode 100644
index 0000000..5f8ba32
--- /dev/null
+++ b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/dto/PostResponse.java
@@ -0,0 +1,21 @@
+package io.reflectoring.hibernatesearch.controller.dto;
+
+import io.reflectoring.hibernatesearch.domain.Tag;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.time.LocalDateTime;
+
+@Getter
+@Setter
+public class PostResponse {
+    private String id;
+    private String body;
+    private UserResponse user;
+    private Tag tag;
+    private String imageUrl;
+    private String imageDescription;
+    private String hashTags;
+    private long likeCount;
+    private LocalDateTime createdAt;
+}
diff --git a/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/dto/UserResponse.java b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/dto/UserResponse.java
new file mode 100644
index 0000000..ca63873
--- /dev/null
+++ b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/dto/UserResponse.java
@@ -0,0 +1,14 @@
+package io.reflectoring.hibernatesearch.controller.dto;
+
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class UserResponse {
+    private String id;
+    private String first;
+    private String middle;
+    private String last;
+    private Integer age;
+}
diff --git a/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/mapper/PostMapper.java b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/mapper/PostMapper.java
new file mode 100644
index 0000000..2824e0d
--- /dev/null
+++ b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/mapper/PostMapper.java
@@ -0,0 +1,10 @@
+package io.reflectoring.hibernatesearch.controller.mapper;
+
+import io.reflectoring.hibernatesearch.controller.dto.PostResponse;
+import io.reflectoring.hibernatesearch.domain.Post;
+import org.mapstruct.Mapper;
+
+@Mapper(componentModel = "spring", uses = UserMapper.class)
+public interface PostMapper {
+    PostResponse toResponse(Post post);
+}
\ No newline at end of file
diff --git a/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/mapper/UserMapper.java b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/mapper/UserMapper.java
new file mode 100644
index 0000000..c7e5f06
--- /dev/null
+++ b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/controller/mapper/UserMapper.java
@@ -0,0 +1,10 @@
+package io.reflectoring.hibernatesearch.controller.mapper;
+
+import io.reflectoring.hibernatesearch.controller.dto.UserResponse;
+import io.reflectoring.hibernatesearch.domain.User;
+import org.mapstruct.Mapper;
+
+@Mapper(componentModel = "spring")
+public interface UserMapper {
+    UserResponse toResponse(User user);
+}
diff --git a/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/domain/Post.java b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/domain/Post.java
new file mode 100644
index 0000000..672a7a6
--- /dev/null
+++ b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/domain/Post.java
@@ -0,0 +1,47 @@
+package io.reflectoring.hibernatesearch.domain;
+
+import lombok.Getter;
+import lombok.Setter;
+import org.apache.lucene.analysis.core.LowerCaseFilterFactory;
+import org.hibernate.search.annotations.*;
+
+import javax.persistence.*;
+import java.time.LocalDateTime;
+
+@Getter
+@Setter
+@Entity
+@Indexed(index = "idx_post")
+@NormalizerDef(name = "lower",
+    filters = @TokenFilterDef(factory = LowerCaseFilterFactory.class))
+public class Post {
+  @Id
+  private String id;
+
+  @Field(name = "body")
+  @Field(name = "bodyFiltered", analyzer = @Analyzer(definition = "stop"))
+  private String body;
+
+  @ManyToOne
+  @IndexedEmbedded
+  private User user;
+
+  @Field(normalizer = @Normalizer(definition = "lower"))
+  @Enumerated(EnumType.STRING)
+  private Tag tag;
+
+  private String imageUrl;
+
+  private String imageDescription;
+
+  @Field
+  private String hashTags;
+
+  @Field
+  @SortableField
+  private long likeCount;
+
+  @Field(analyze = Analyze.NO)
+  @SortableField
+  private LocalDateTime createdAt;
+}
diff --git a/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/domain/Tag.java b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/domain/Tag.java
new file mode 100644
index 0000000..a2c60c2
--- /dev/null
+++ b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/domain/Tag.java
@@ -0,0 +1,7 @@
+package io.reflectoring.hibernatesearch.domain;
+
+public enum Tag {
+    MOVIE,
+    MUSIC,
+    LITERATURE
+}
diff --git a/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/domain/User.java b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/domain/User.java
new file mode 100644
index 0000000..2caf021
--- /dev/null
+++ b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/domain/User.java
@@ -0,0 +1,37 @@
+package io.reflectoring.hibernatesearch.domain;
+
+import lombok.Getter;
+import lombok.Setter;
+import org.hibernate.search.annotations.*;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.OneToMany;
+import java.util.List;
+
+@Getter
+@Setter
+@Entity
+@Indexed(index = "idx_user")
+public class User {
+  @Id
+  private String id;
+
+  @Field(store = Store.YES)
+  @Field(name = "fullName")
+  private String first;
+
+  @Field(index = Index.NO)
+  private String middle;
+
+  @Field
+  @Field(name = "fullName")
+  private String last;
+
+  @Field
+  private Integer age;
+
+  @ContainedIn
+  @OneToMany(mappedBy = "user")
+  private List<Post> post;
+}
diff --git a/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/service/IndexingService.java b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/service/IndexingService.java
new file mode 100644
index 0000000..5d14eba
--- /dev/null
+++ b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/service/IndexingService.java
@@ -0,0 +1,26 @@
+package io.reflectoring.hibernatesearch.service;
+
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.hibernate.search.jpa.FullTextEntityManager;
+import org.hibernate.search.jpa.Search;
+import org.springframework.stereotype.Service;
+
+import javax.persistence.EntityManager;
+import javax.transaction.Transactional;
+
+@Service
+@RequiredArgsConstructor
+@Slf4j
+public class IndexingService {
+
+    private final EntityManager em;
+
+    @Transactional
+    public void initiateIndexing() throws InterruptedException {
+        log.info("Initiating indexing...");
+        FullTextEntityManager fullTextEntityManager = Search.getFullTextEntityManager(em);
+        fullTextEntityManager.createIndexer().startAndWait();
+        log.info("All entities indexed");
+    }
+}
diff --git a/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/service/SearchService.java b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/service/SearchService.java
new file mode 100644
index 0000000..ec8c13f
--- /dev/null
+++ b/spring-boot/hibernate-search/src/main/java/io/reflectoring/hibernatesearch/service/SearchService.java
@@ -0,0 +1,95 @@
+package io.reflectoring.hibernatesearch.service;
+
+import io.reflectoring.hibernatesearch.domain.Post;
+import io.reflectoring.hibernatesearch.domain.User;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.lucene.search.Query;
+import org.hibernate.search.jpa.FullTextEntityManager;
+import org.hibernate.search.jpa.FullTextQuery;
+import org.hibernate.search.jpa.Search;
+import org.hibernate.search.query.dsl.QueryBuilder;
+import org.springframework.stereotype.Component;
+
+import javax.persistence.EntityManager;
+import java.util.ArrayList;
+import java.util.List;
+
+@Component
+@Slf4j
+@RequiredArgsConstructor
+public class SearchService {
+    private final EntityManager entityManager;
+
+    public List<Post> getBasedOnLikeCountTags(Long likeCount, String hashTags, String tag){
+        FullTextEntityManager fullTextEntityManager = Search.getFullTextEntityManager(entityManager);
+        QueryBuilder qb = fullTextEntityManager.getSearchFactory().buildQueryBuilder()
+                .forEntity(Post.class)
+                .get();
+        Query likeCountGreater = qb.range().onField("likeCount").above(likeCount).createQuery();
+        Query hashTagsQuery = qb.keyword().onField("hashTags").matching(hashTags).createQuery();
+        Query tagQuery = qb.keyword().onField("tag").matching(tag).createQuery();
+        Query finalQuery = qb.bool().must(likeCountGreater).should(tagQuery).should(hashTagsQuery).createQuery();
+
+        FullTextQuery fullTextQuery = fullTextEntityManager.createFullTextQuery(finalQuery, Post.class);
+        fullTextQuery.setSort(qb.sort().byScore().createSort());
+        return (List<Post>) fullTextQuery.getResultList();
+    }
+
+    public List<Post> getPostBasedOnWord(String word){
+        FullTextEntityManager fullTextEntityManager = Search.getFullTextEntityManager(entityManager);
+        QueryBuilder qb = fullTextEntityManager.getSearchFactory().buildQueryBuilder()
+                .forEntity(Post.class)
+                .get();
+        Query foodQuery = qb.keyword().onFields("bodyFiltered","hashTags").matching(word).createQuery();
+        FullTextQuery fullTextQuery = fullTextEntityManager.createFullTextQuery(foodQuery, Post.class);
+        return (List<Post>) fullTextQuery.getResultList();
+    }
+
+    public List<User> getUserByFirst(String first, int max, int page){
+        FullTextEntityManager fullTextEntityManager = Search.getFullTextEntityManager(entityManager);
+        QueryBuilder qb = fullTextEntityManager.getSearchFactory().buildQueryBuilder()
+                .forEntity(User.class)
+                .get();
+        Query similarToUser = qb.keyword().wildcard().onField("first")
+                .matching(first).createQuery();
+        Query finalQuery = qb.bool().must(similarToUser).createQuery();
+
+        FullTextQuery fullTextQuery = fullTextEntityManager.createFullTextQuery(finalQuery, User.class);
+        fullTextQuery.setSort(qb.sort().byField("age").desc().andByScore().createSort());
+        fullTextQuery.setMaxResults(max);
+        fullTextQuery.setFirstResult(page);
+        return (List<User>) fullTextQuery.getResultList();
+    }
+
+    public List<User> getUserByFirstWithProjection(String first, int max, int page){
+        FullTextEntityManager fullTextEntityManager = Search.getFullTextEntityManager(entityManager);
+        QueryBuilder qb = fullTextEntityManager.getSearchFactory().buildQueryBuilder()
+                .forEntity(User.class)
+                .get();
+        Query similarToUser = qb.keyword().fuzzy().withEditDistanceUpTo(3).onField("first")
+                .matching(first).createQuery();
+        Query finalQuery = qb.bool().must(similarToUser).createQuery();
+
+        FullTextQuery fullTextQuery = fullTextEntityManager.createFullTextQuery(finalQuery, User.class);
+        fullTextQuery.setProjection(FullTextQuery.ID, "first","last","middle","age");
+        fullTextQuery.setSort(qb.sort().byField("age").desc().andByScore().createSort());
+        fullTextQuery.setMaxResults(max);
+        fullTextQuery.setFirstResult(page);
+        return getUserList(fullTextQuery.getResultList());
+    }
+
+    private List<User> getUserList(List<Object[]> resultList) {
+        List<User> users = new ArrayList<>();
+        for (Object[] objects : resultList) {
+            User user = new User();
+            user.setId((String) objects[0]);
+            user.setFirst((String) objects[1]);
+            user.setLast((String) objects[2]);
+            user.setMiddle((String) objects[3]);
+            user.setAge((Integer) objects[4]);
+            users.add(user);
+        }
+        return users;
+    }
+}
diff --git a/spring-boot/hibernate-search/src/main/resources/application.yml b/spring-boot/hibernate-search/src/main/resources/application.yml
new file mode 100644
index 0000000..801c18b
--- /dev/null
+++ b/spring-boot/hibernate-search/src/main/resources/application.yml
@@ -0,0 +1,15 @@
+spring:
+  jpa:
+    show-sql: true
+    generate-ddl: true
+    hibernate:
+      ddl-auto: create-drop
+    properties:
+      hibernate:
+        search:
+          default:
+            indexmanager: elasticsearch
+            elasticsearch:
+              host: http://192.168.0.103:9200
+              index_schema_management_strategy: drop-and-create
+              required_index_status: yellow
\ No newline at end of file
diff --git a/spring-boot/hibernate-search/src/main/resources/data.sql b/spring-boot/hibernate-search/src/main/resources/data.sql
new file mode 100644
index 0000000..abfa119
--- /dev/null
+++ b/spring-boot/hibernate-search/src/main/resources/data.sql
@@ -0,0 +1,47 @@
+insert into user (id, first, last, middle, age) values ( 'c_1', 'John', 'Doe', 'Maven' , 31);
+insert into user (id, first, last, middle, age) values ( 'c_2', 'Jane', 'Dove', 'Gradle', 41);
+
+insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
+values ( 'p_1', 'The tattered work gloves speak of the many hours of hard labor he endured throughout his life', now(),
+        '#work#labour', 'Office', 'uri://sample1', 20, 'LITERATURE', 'c_1' );
+
+insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
+values ( 'p_2', 'Dolores wouldn''t have eaten the meal if she had known what it actually was.', now(),
+         '#food', 'Office', 'uri://sample1', 7686, 'MUSIC', 'c_1' );
+
+insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
+values ( 'p_3', 'It caught him off guard that space smelled of seared steak.', now(),
+         '#food#stale#caughtinact', 'Office', 'uri://sample1', 1234, 'LITERATURE', 'c_1' );
+
+insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
+values ( 'p_4', '25 years later, she still regretted that specific moment.', now(),
+         '#ages', 'Office', 'uri://sample1', 679, 'MOVIE', 'c_1' );
+
+insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
+values ( 'p_5', 'She had a habit of taking showers in lemonade.', now(),
+         '#bath', 'Office', 'uri://sample1', 23, 'LITERATURE', 'c_1' );
+
+insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
+values ( 'p_6', 'She is never happy until she finds something to be unhappy about; then, she is overjoyed.', now(),
+         '#feelings', 'Office', 'uri://sample1', 4569877, 'MOVIE', 'c_2' );
+
+insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
+values ( 'p_7', 'They throw cabbage that turns your brain into emotional baggage.', now(),
+         '#food', 'Office', 'uri://sample1', 1000, 'MUSIC', 'c_2' );
+
+insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
+values ( 'p_8', 'There''s a message for you if you look up.', now(),
+         '#message', 'Office', 'uri://sample1', 20, 'LITERATURE', 'c_2' );
+
+insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
+values ( 'p_9', 'Please wait outside of the house.', now(),
+         '#house#labour', 'Office', 'uri://sample1', 40, 'MUSIC', 'c_2' );
+
+insert into post (id, body, created_at, hash_tags, image_description, image_url, like_count, tag, user_id)
+values ( 'p_10', 'Honestly, I didn''t care much for the first season, so I didn''t bother with the second.', now(),
+         '#honest#season#time', 'Office', 'uri://sample1', 20000, 'MOVIE', 'c_2' );
+
+
+
+
+
diff --git a/spring-boot/hibernate-search/src/test/java/io/reflectoring/hibernatesearch/HibernateSearchApplicationTests.java b/spring-boot/hibernate-search/src/test/java/io/reflectoring/hibernatesearch/HibernateSearchApplicationTests.java
new file mode 100644
index 0000000..9ff5e31
--- /dev/null
+++ b/spring-boot/hibernate-search/src/test/java/io/reflectoring/hibernatesearch/HibernateSearchApplicationTests.java
@@ -0,0 +1,13 @@
+package io.reflectoring.hibernatesearch;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class HibernateSearchApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+
+}