Implementation of login endpoint.

sportshub-exposition/src/main/java/org/sportshub/exposition/configuration/GlobalControllerExceptionHandler.java

@@ -0,0 +1,17 @@
+package org.sportshub.exposition.configuration;
+
+import static org.springframework.http.HttpStatus.BAD_REQUEST;
+import org.sportshub.domain.exception.LoginFailureException;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+@ControllerAdvice
+public class GlobalControllerExceptionHandler {
+
+    @ResponseStatus(BAD_REQUEST)
+    @ExceptionHandler(LoginFailureException.class)
+    public void handleLoginFailureException() {
+        // Do nothing.
+    }
+}

sportshub-exposition/src/main/java/org/sportshub/exposition/user/UserController.java

@@ -1,11 +1,15 @@
 package org.sportshub.exposition.user;
 
 import java.util.List;
+import java.util.Optional;
 
 import org.sportshub.application.user.UserUseCases;
 import org.sportshub.domain.user.model.User;
+import org.sportshub.exposition.user.model.LoginRequest;
+import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.GetMapping;
 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;
 
@@ -19,8 +23,8 @@ public class UserController {
     }
 
     @PostMapping("/login")
-    public String login() {
-        return "";
+    public String login(@RequestBody LoginRequest request) {
+        return userUseCases.authenticate(request.id(), request.password());
     }
 
     @GetMapping

sportshub-exposition/src/main/java/org/sportshub/exposition/user/model/LoginRequest.java

@@ -0,0 +1,8 @@
+package org.sportshub.exposition.user.model;
+
+import java.util.UUID;
+
+public record LoginRequest(
+   UUID id,
+   String password
+) {}