Add authentication endpoint

src/main/java/com/otavio/aifoodapp/config/SecurityConfig.java

@@ -2,9 +2,13 @@
 
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.security.authentication.AuthenticationManager;
+import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
 import org.springframework.security.config.http.SessionCreationPolicy;
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+import org.springframework.security.crypto.password.PasswordEncoder;
 import org.springframework.security.web.SecurityFilterChain;
 
 @Configuration
@@ -16,8 +20,20 @@ public SecurityFilterChain securityFilterChain(HttpSecurity httpSecurity) throws
         return httpSecurity
                 .csrf(csrf -> csrf.disable())
                 .sessionManagement(session -> session.sessionCreationPolicy(SessionCreationPolicy.STATELESS))
-                .build();
+                .authorizeHttpRequests(authorize -> authorize
+                        .anyRequest().authenticated()
+                )
+                    .build();
 
 
-    } 
+    }
+
+    @Bean
+    public AuthenticationManager authenticationManagerBean(AuthenticationConfiguration authenticationConfiguration) throws Exception {
+        return authenticationConfiguration.getAuthenticationManager();
+
+    }
+
+    @Bean
+    public PasswordEncoder passwordEncoder() {return new BCryptPasswordEncoder();}
 }

src/main/java/com/otavio/aifoodapp/controller/AuthenticationController.java

@@ -0,0 +1,28 @@
+package com.otavio.aifoodapp.controller;
+
+import com.otavio.aifoodapp.dto.AuthenticationDTO;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.authentication.AuthenticationManager;
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.validation.Valid;
+
+@RestController
+@RequestMapping("/api/auth")
+public class AuthenticationController {
+    @Autowired
+    private AuthenticationManager authenticationManager;
+
+    @PostMapping("/login")
+    public ResponseEntity login(@RequestBody @Valid AuthenticationDTO data) {
+        var usernamePassword = new UsernamePasswordAuthenticationToken(data.login(), data.password());
+        var auth = this.authenticationManager.authenticate(usernamePassword);
+
+        return ResponseEntity.ok(auth);
+    }
+}

src/main/java/com/otavio/aifoodapp/dto/AuthenticationDTO.java

@@ -0,0 +1,4 @@
+package com.otavio.aifoodapp.dto;
+
+public record AuthenticationDTO(String login, String password) {
+}

src/main/java/com/otavio/aifoodapp/model/User.java

@@ -21,7 +21,7 @@ public class User implements UserDetails {
 
 
     @Id
-    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @GeneratedValue(strategy = GenerationType.UUID)
     private Long id;
 
     @Column(unique = true, nullable = false)