diff --git a/src/main/java/me/jweissen/aeticket/controller/CartController.java b/src/main/java/me/jweissen/aeticket/controller/CartController.java
new file mode 100644
index 0000000..fb9930b
--- /dev/null
+++ b/src/main/java/me/jweissen/aeticket/controller/CartController.java
@@ -0,0 +1,23 @@
+package me.jweissen.aeticket.controller;
+
+import me.jweissen.aeticket.service.CartService;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/cart")
+public class CartController {
+    private final CartService cartService;
+
+    public CartController(CartService cartService) {
+        this.cartService = cartService;
+    }
+
+    @PostMapping("/add")
+    public ResponseEntity<Void> addEntry() {
+        return new ResponseEntity<>(HttpStatus.NO_CONTENT);
+    }
+}
diff --git a/src/main/java/me/jweissen/aeticket/controller/EventController.java b/src/main/java/me/jweissen/aeticket/controller/EventController.java
index 04b0224..b377313 100644
--- a/src/main/java/me/jweissen/aeticket/controller/EventController.java
+++ b/src/main/java/me/jweissen/aeticket/controller/EventController.java
@@ -8,6 +8,8 @@ import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
+import java.util.List;
+
 @RestController
 @RequestMapping("/event")
 public class EventController {
@@ -17,6 +19,16 @@ public class EventController {
         this.eventService = eventService;
     }
 
+    @GetMapping("/{id}")
+    public ResponseEntity<EventResponseDto> getById(@PathVariable Integer id) {
+        return new ResponseEntity<>(eventService.getById(id), HttpStatus.OK);
+    }
+
+    @GetMapping("/list")
+    public ResponseEntity<List<EventResponseDto>> getAllFuture() {
+        return new ResponseEntity<>(eventService.getAllFuture(), HttpStatus.OK);
+    }
+
     @PostMapping("/add")
     public ResponseEntity<Void> create(@RequestBody EventRequestDto event) {
         // TODO admin only
@@ -37,9 +49,4 @@ public class EventController {
         eventService.delete(id);
         return new ResponseEntity<>(null, HttpStatus.NO_CONTENT);
     }
-
-    @GetMapping("/{id}")
-    public ResponseEntity<EventResponseDto> getById(@PathVariable Integer id) {
-        eventService.getById();
-    }
 }
diff --git a/src/main/java/me/jweissen/aeticket/dto/request/CartAddRequestDto.java b/src/main/java/me/jweissen/aeticket/dto/request/CartAddRequestDto.java
new file mode 100644
index 0000000..d1dca5d
--- /dev/null
+++ b/src/main/java/me/jweissen/aeticket/dto/request/CartAddRequestDto.java
@@ -0,0 +1,6 @@
+package me.jweissen.aeticket.dto.request;
+
+import java.util.List;
+
+public record CartAddRequestDto(Long id, List<CartEntryRequestDto> cartEntries) {
+}
diff --git a/src/main/java/me/jweissen/aeticket/dto/request/CartEntryRequestDto.java b/src/main/java/me/jweissen/aeticket/dto/request/CartEntryRequestDto.java
new file mode 100644
index 0000000..d11e9fd
--- /dev/null
+++ b/src/main/java/me/jweissen/aeticket/dto/request/CartEntryRequestDto.java
@@ -0,0 +1,4 @@
+package me.jweissen.aeticket.dto.request;
+
+public record CartEntryRequestDto(Long id, Integer amount) {
+}
diff --git a/src/main/java/me/jweissen/aeticket/dto/response/CategoryResponseDto.java b/src/main/java/me/jweissen/aeticket/dto/response/CategoryResponseDto.java
index fb5386a..6a1c22a 100644
--- a/src/main/java/me/jweissen/aeticket/dto/response/CategoryResponseDto.java
+++ b/src/main/java/me/jweissen/aeticket/dto/response/CategoryResponseDto.java
@@ -1,4 +1,4 @@
 package me.jweissen.aeticket.dto.response;
 
-public record CategoryResponseDto(int id, String name, int price, int stock) {
+public record CategoryResponseDto(Long id, String name, Double price, Integer stock) {
 }
diff --git a/src/main/java/me/jweissen/aeticket/dto/response/EventResponseDto.java b/src/main/java/me/jweissen/aeticket/dto/response/EventResponseDto.java
index 5876852..abc3279 100644
--- a/src/main/java/me/jweissen/aeticket/dto/response/EventResponseDto.java
+++ b/src/main/java/me/jweissen/aeticket/dto/response/EventResponseDto.java
@@ -4,7 +4,7 @@ import java.util.Date;
 import java.util.List;
 
 public record EventResponseDto(
-        int id,
+        Long id,
         String name,
         Date from,
         Date to,
diff --git a/src/main/java/me/jweissen/aeticket/model/Category.java b/src/main/java/me/jweissen/aeticket/model/Category.java
index deb9c58..d8ec6d1 100644
--- a/src/main/java/me/jweissen/aeticket/model/Category.java
+++ b/src/main/java/me/jweissen/aeticket/model/Category.java
@@ -2,6 +2,7 @@ package me.jweissen.aeticket.model;
 
 import jakarta.persistence.*;
 import lombok.Getter;
+import lombok.NonNull;
 import lombok.Setter;
 
 import java.util.List;
@@ -13,16 +14,19 @@ import java.util.List;
 public class Category {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private Integer id;
+    private Long id;
 
     @Column(nullable = false)
+    @NonNull
     private String name;
 
     @Column(nullable = false)
-    private Double price;
+    @NonNull
+    private Integer price;
 
     @Column(nullable = false)
-    private int stock;
+    @NonNull
+    private Integer stock;
 
     @ManyToOne(optional = false)
     @JoinColumn(nullable = false)
diff --git a/src/main/java/me/jweissen/aeticket/model/Event.java b/src/main/java/me/jweissen/aeticket/model/Event.java
index 3e19039..b597b3c 100644
--- a/src/main/java/me/jweissen/aeticket/model/Event.java
+++ b/src/main/java/me/jweissen/aeticket/model/Event.java
@@ -17,7 +17,7 @@ import java.util.List;
 public class Event {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private int id;
+    private Long id;
 
     @Column(nullable = false)
     @NonNull
diff --git a/src/main/java/me/jweissen/aeticket/repository/EventRepository.java b/src/main/java/me/jweissen/aeticket/repository/EventRepository.java
index 68af5a8..c4812dc 100644
--- a/src/main/java/me/jweissen/aeticket/repository/EventRepository.java
+++ b/src/main/java/me/jweissen/aeticket/repository/EventRepository.java
@@ -2,6 +2,11 @@ package me.jweissen.aeticket.repository;
 
 import me.jweissen.aeticket.model.Event;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+
+import java.util.List;
 
 public interface EventRepository extends JpaRepository<Event, Integer> {
+    @Query("SELECT e FROM Event e WHERE e.start > CURRENT_TIMESTAMP")
+    List<Event> findAllFuture();
 }
diff --git a/src/main/java/me/jweissen/aeticket/service/CategoryService.java b/src/main/java/me/jweissen/aeticket/service/CategoryService.java
new file mode 100644
index 0000000..7b44853
--- /dev/null
+++ b/src/main/java/me/jweissen/aeticket/service/CategoryService.java
@@ -0,0 +1,23 @@
+package me.jweissen.aeticket.service;
+
+import me.jweissen.aeticket.dto.response.CategoryResponseDto;
+import me.jweissen.aeticket.model.Category;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class CategoryService {
+    public static CategoryResponseDto toDto(Category category) {
+        return new CategoryResponseDto(
+                category.getId(),
+                category.getName(),
+                category.getPrice() / 100.0,
+                category.getStock()
+        );
+    }
+
+    public static List<CategoryResponseDto> toDtos(List<Category> categories) {
+        return categories.stream().map(CategoryService::toDto).toList();
+    }
+}
diff --git a/src/main/java/me/jweissen/aeticket/service/EventService.java b/src/main/java/me/jweissen/aeticket/service/EventService.java
index ee796c4..e2e6670 100644
--- a/src/main/java/me/jweissen/aeticket/service/EventService.java
+++ b/src/main/java/me/jweissen/aeticket/service/EventService.java
@@ -7,6 +7,8 @@ import me.jweissen.aeticket.model.Event;
 import me.jweissen.aeticket.repository.EventRepository;
 import org.springframework.stereotype.Service;
 
+import java.util.List;
+
 @Service
 public class EventService {
     private final EventRepository eventRepository;
@@ -31,8 +33,12 @@ public class EventService {
             event.getStart(),
             event.getEnd(),
             event.getDescription(),
-            event.getCategories()
-        )
+            CategoryService.toDtos(event.getCategories())
+        );
+    }
+
+    public static List<EventResponseDto> toDtos(List<Event> events) {
+        return events.stream().map(EventService::toDto).toList();
     }
 
     public void create(EventRequestDto event) {
@@ -47,6 +53,10 @@ public class EventService {
     }
 
     public EventResponseDto getById(Integer id) {
-        return eventRepository.getReferenceById(id);
+        return EventService.toDto(eventRepository.getReferenceById(id));
+    }
+
+    public List<EventResponseDto> getAllFuture() {
+        return EventService.toDtos(eventRepository.findAllFuture());
     }
 }