diff --git a/backend/pom.xml b/backend/pom.xml
index 236f07a12d76974334955001e897415bb120e994..7dcbff00a7cdb7c9164d2b4a7728def31b47edde 100644
--- a/backend/pom.xml
+++ b/backend/pom.xml
@@ -29,12 +29,17 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-web</artifactId>
 		</dependency>
-
 		<dependency>
 			<groupId>com.h2database</groupId>
 			<artifactId>h2</artifactId>
 			<scope>runtime</scope>
 		</dependency>
+		<dependency>
+			<groupId>jakarta.persistence</groupId>
+			<artifactId>jakarta.persistence-api</artifactId>
+		</dependency>
+
+
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-test</artifactId>
diff --git a/backend/src/main/java/hu/pazmany/ExampleController.java b/backend/src/main/java/hu/pazmany/ExampleController.java
new file mode 100644
index 0000000000000000000000000000000000000000..f84dcbd61f71683c47d76021a4836a839f6018d7
--- /dev/null
+++ b/backend/src/main/java/hu/pazmany/ExampleController.java
@@ -0,0 +1,26 @@
+package hu.pazmany;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+@CrossOrigin(origins = "http://localhost:3000")
+@RestController
+public class ExampleController {
+    private final UserService userService;
+
+    @Autowired
+    public ExampleController(UserService userService) {
+        this.userService = userService;
+    }
+
+    @PostMapping("/api/login")
+    public String login(@RequestBody UserLoginDto userLoginDto) {
+        System.out.println(userLoginDto);
+        return userService.authenticate(userLoginDto.getUsername(), userLoginDto.getPassword());
+    }
+
+    @PostMapping("/api/register")
+    public void register(@RequestBody UserLoginDto userLoginDto) {
+        userService.register(userLoginDto.getFullName(), userLoginDto.getUsername(), userLoginDto.getPassword());
+    }
+}
\ No newline at end of file
diff --git a/backend/src/main/java/hu/pazmany/ExampleApplication.java b/backend/src/main/java/hu/pazmany/NoteStore.java
similarity index 73%
rename from backend/src/main/java/hu/pazmany/ExampleApplication.java
rename to backend/src/main/java/hu/pazmany/NoteStore.java
index 3961bea1fcfe7eb6671ba8e4613a6786cc6f5d90..dd4be8945d36b0c8d639a3cacd04d438eb332600 100644
--- a/backend/src/main/java/hu/pazmany/ExampleApplication.java
+++ b/backend/src/main/java/hu/pazmany/NoteStore.java
@@ -4,10 +4,10 @@ import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 @SpringBootApplication(scanBasePackages = { "hu.pazmany" })
-public class ExampleApplication {
+public class NoteStore {
 
 	public static void main(String[] args) {
-		SpringApplication.run(ExampleApplication.class, args);
+		SpringApplication.run(NoteStore.class, args);
 	}
 
 }
diff --git a/backend/src/main/java/hu/pazmany/User.java b/backend/src/main/java/hu/pazmany/User.java
new file mode 100644
index 0000000000000000000000000000000000000000..40c2650f394c2363b275ca409e9d53e1b1e5569c
--- /dev/null
+++ b/backend/src/main/java/hu/pazmany/User.java
@@ -0,0 +1,46 @@
+package hu.pazmany;
+
+import jakarta.persistence.*;
+
+@Entity
+@Table(name = "`user`")
+public class User {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+    private String fullName;
+    private String username;
+    private String password; //Ide fog kelleni egy enkriptálás (hajrá)
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getFullName() {
+        return fullName;
+    }
+
+    public void setFullName(String fullName) {
+        this.fullName = fullName;
+    }
+
+    public String getUsername() {
+        return username;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+}
diff --git a/backend/src/main/java/hu/pazmany/UserLoginDto.java b/backend/src/main/java/hu/pazmany/UserLoginDto.java
new file mode 100644
index 0000000000000000000000000000000000000000..945d5d564e455020c1f9a7994ae3d914ff6ca0bc
--- /dev/null
+++ b/backend/src/main/java/hu/pazmany/UserLoginDto.java
@@ -0,0 +1,31 @@
+package hu.pazmany;
+
+public class UserLoginDto {
+    private String fullName;
+    private String username;
+    private String password;
+
+    public String getFullName() {
+        return fullName;
+    }
+
+    public void setFullName(String fullName) {
+        this.fullName = fullName;
+    }
+
+    public String getUsername() {
+        return username;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+}
diff --git a/backend/src/main/java/hu/pazmany/UserRepository.java b/backend/src/main/java/hu/pazmany/UserRepository.java
new file mode 100644
index 0000000000000000000000000000000000000000..625c023b72bf664be1072cee3093a4d10254099b
--- /dev/null
+++ b/backend/src/main/java/hu/pazmany/UserRepository.java
@@ -0,0 +1,7 @@
+package hu.pazmany;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface UserRepository extends JpaRepository<User, Long> {
+    User findByUsername(String username);
+}
diff --git a/backend/src/main/java/hu/pazmany/UserService.java b/backend/src/main/java/hu/pazmany/UserService.java
new file mode 100644
index 0000000000000000000000000000000000000000..ee97f97743f673ef89194c63c0ffb31056c8b1e3
--- /dev/null
+++ b/backend/src/main/java/hu/pazmany/UserService.java
@@ -0,0 +1,29 @@
+package hu.pazmany;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+public class UserService {
+    private final UserRepository userRepository;
+
+    public UserService(UserRepository userRepository) {
+        this.userRepository = userRepository;
+    }
+
+    public String authenticate(String username, String password) {
+        User user = userRepository.findByUsername(username);
+        if (user != null && user.getPassword().equals(password)) {
+            return user.getFullName();
+        }
+        return "Helytelen felhasználónév vagy jelszó!";
+    }
+
+    public void register(String fullName, String username, String password) {
+        User user = new User();
+        user.setFullName(fullName);
+        user.setUsername(username);
+        user.setPassword(password);
+        userRepository.save(user);
+    }
+}
diff --git a/backend/src/main/java/hu/pazmany/controller/ExampleController.java b/backend/src/main/java/hu/pazmany/controller/ExampleController.java
deleted file mode 100644
index bfe2e26d6b2bf7b6febc7a5f532c7ab99ae281b9..0000000000000000000000000000000000000000
--- a/backend/src/main/java/hu/pazmany/controller/ExampleController.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package hu.pazmany.controller;
-
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
-
-@RestController
-@RequestMapping("/api")
-public class ExampleController {
-	private static final String OKAY_STRING = "OK";
-
-	/**
-	 * Provides an OK string
-	 * @return An OK string
-	 */
-
-	@GetMapping("/ok")
-	public String ok() {
-		return OKAY_STRING;
-	}
-}
diff --git a/backend/src/main/resources/application.properties b/backend/src/main/resources/application.properties
index 331c9e3ba478c5ffbfa39ecf7637a95ace1503b9..a00ab33962dcfdc65359907962b298a5bf22beec 100644
--- a/backend/src/main/resources/application.properties
+++ b/backend/src/main/resources/application.properties
@@ -7,6 +7,7 @@ spring.datasource.driverClassName=org.h2.Driver
 spring.datasource.username=sa
 spring.datasource.password=sa
 spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
+spring.jpa.properties.hibernate.globally_quoted_identifiers=true
 
 spring.h2.console.enabled=true
 spring.h2.console.path=/h2-console
diff --git a/backend/src/test/java/hu/pazmany/ExampleApplicationTests.java b/backend/src/test/java/hu/pazmany/ExampleApplicationTests.java
deleted file mode 100644
index 2be0d2037b7c6dbd119ac9c7253bc8a69c4e7b6e..0000000000000000000000000000000000000000
--- a/backend/src/test/java/hu/pazmany/ExampleApplicationTests.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package hu.pazmany;
-
-import org.junit.jupiter.api.Test;
-import org.springframework.boot.test.context.SpringBootTest;
-
-@SpringBootTest
-class ExampleApplicationTests {
-
-	@Test
-	void contextLoads() {
-	}
-
-}
diff --git a/frontend/src/components/login-komponens.vue b/frontend/src/components/login-komponens.vue
index 5c13327aa99798d8a79a278b5ba87568b772a697..c19efa892cc218982eda7527d6baa3a78587d746 100644
--- a/frontend/src/components/login-komponens.vue
+++ b/frontend/src/components/login-komponens.vue
@@ -27,14 +27,30 @@ import axios from 'axios';
 //   })
 // }
 
+function loginUser(credentials, callback) {
+  axios.post('http://localhost:8080/api/login', credentials)
+      .then(response => {
+        callback(response.data)
+      })
+      .catch(error => {
+        console.log(error);
+      });
+}
+
 const loggedIn = ref(false);
 const btnText = ref("Bejelentkezés")
+const userName = ref("")
 function login(){
   loggedIn.value = !loggedIn.value
 
   if(loggedIn.value){
+    //Itt lesz a kitalált user (Gipsz Jakab, keksz) aki megpróbál bejelentkezni
+    loginUser({username: 'gipja', password: 'keksz'}, function(response) {
+      userName.value = response
+    })
     btnText.value = "Kijelentkezés"
   } else {
+    userName.value = ""
     btnText.value = "Bejelentkezés"
   }
 }
@@ -42,6 +58,7 @@ function login(){
 </script>
 
 <template>
+  <h1>{{userName}}</h1>
   <button class="grow" @click="login">{{btnText}}</button>
 </template>
 
diff --git a/frontend/src/components/register-komponens.vue b/frontend/src/components/register-komponens.vue
index 646849b2ea27be35677d2f04d63a5bf01949f9aa..654db97831601deef77e3b97975de6e8454fcd0d 100644
--- a/frontend/src/components/register-komponens.vue
+++ b/frontend/src/components/register-komponens.vue
@@ -1,9 +1,20 @@
 <script setup>
 
-function register(){
-
+import axios from "axios";
+
+function registerUser(credentials) {
+  axios.post('http://localhost:8080/api/register', credentials)
+      .then(response => {
+        console.log("Sikeres regisztráció!")
+      })
+      .catch(error => {
+        console.error('Sikertelen regisztráció!', error);
+      });
 }
 
+function register(){
+  registerUser({fullName: 'Gipsz Jakab', username: 'gipja', password: 'keksz'})
+}
 </script>
 
 <template>