diff --git a/api/src/main/java/fr/gameovergne/api/controller/app/BrandController.java b/api/src/main/java/fr/gameovergne/api/controller/app/BrandController.java
index ad0a1a4..1327003 100644
--- a/api/src/main/java/fr/gameovergne/api/controller/app/BrandController.java
+++ b/api/src/main/java/fr/gameovergne/api/controller/app/BrandController.java
@@ -25,8 +25,11 @@ public class BrandController {
     }
 
     @GetMapping
-    public List<Brand> getAllBrands() {
-        return brandService.getAllBrands();
+    public List<BrandDTO> getAllBrands() {
+        return brandService.getAllBrands()
+                .stream()
+                .map(brandMapper::toDto)
+                .toList();
     }
 
     @GetMapping("/{id}")
diff --git a/api/src/main/java/fr/gameovergne/api/controller/app/CategoryController.java b/api/src/main/java/fr/gameovergne/api/controller/app/CategoryController.java
index 9b9757a..707fafa 100644
--- a/api/src/main/java/fr/gameovergne/api/controller/app/CategoryController.java
+++ b/api/src/main/java/fr/gameovergne/api/controller/app/CategoryController.java
@@ -24,8 +24,11 @@ public class CategoryController {
     }
 
     @GetMapping
-    public List<Category> getAllCategories() {
-        return categoryService.getAllCategories();
+    public List<CategoryDTO> getAllCategories() {
+        return categoryService.getAllCategories()
+                .stream()
+                .map(categoryMapper::toDto)
+                .toList();
     }
 
     @GetMapping("/{id}")
diff --git a/api/src/main/java/fr/gameovergne/api/dto/app/BrandDTO.java b/api/src/main/java/fr/gameovergne/api/dto/app/BrandDTO.java
index 1092ce5..f9a0573 100644
--- a/api/src/main/java/fr/gameovergne/api/dto/app/BrandDTO.java
+++ b/api/src/main/java/fr/gameovergne/api/dto/app/BrandDTO.java
@@ -10,6 +10,9 @@ import lombok.NoArgsConstructor;
 @NoArgsConstructor
 public class BrandDTO {
 
+    @JsonProperty("id")
+    private Long id;
+
     @JsonProperty("name")
     private String name;
 }
diff --git a/api/src/main/java/fr/gameovergne/api/dto/app/CategoryDTO.java b/api/src/main/java/fr/gameovergne/api/dto/app/CategoryDTO.java
index f1b685f..36bc5da 100644
--- a/api/src/main/java/fr/gameovergne/api/dto/app/CategoryDTO.java
+++ b/api/src/main/java/fr/gameovergne/api/dto/app/CategoryDTO.java
@@ -10,6 +10,9 @@ import lombok.NoArgsConstructor;
 @NoArgsConstructor
 public class CategoryDTO {
 
+    @JsonProperty("id")
+    private Long id;
+
     @JsonProperty("name")
     private String name;
 }
diff --git a/api/src/main/java/fr/gameovergne/api/dto/app/PlatformDTO.java b/api/src/main/java/fr/gameovergne/api/dto/app/PlatformDTO.java
index 1a66208..20a77e3 100644
--- a/api/src/main/java/fr/gameovergne/api/dto/app/PlatformDTO.java
+++ b/api/src/main/java/fr/gameovergne/api/dto/app/PlatformDTO.java
@@ -10,6 +10,9 @@ import lombok.NoArgsConstructor;
 @NoArgsConstructor
 public class PlatformDTO {
 
+    @JsonProperty("id")
+    private Long id;
+
     @JsonProperty("name")
     private String name;
 
diff --git a/api/src/main/java/fr/gameovergne/api/mapper/app/BrandMapper.java b/api/src/main/java/fr/gameovergne/api/mapper/app/BrandMapper.java
index eebf800..fd3f3d5 100644
--- a/api/src/main/java/fr/gameovergne/api/mapper/app/BrandMapper.java
+++ b/api/src/main/java/fr/gameovergne/api/mapper/app/BrandMapper.java
@@ -10,6 +10,7 @@ public class BrandMapper {
     public Brand fromDto(BrandDTO brandDTO) {
         if (brandDTO == null) return null;
         Brand brand = new Brand();
+        brand.setId(brandDTO.getId());
         brand.setName(brandDTO.getName());
         return brand;
     }
@@ -17,6 +18,7 @@ public class BrandMapper {
     public BrandDTO toDto(Brand brand) {
         if (brand == null) return null;
         BrandDTO brandDTO = new BrandDTO();
+        brandDTO.setId(brand.getId());
         brandDTO.setName(brand.getName());
         return brandDTO;
     }
diff --git a/api/src/main/java/fr/gameovergne/api/mapper/app/CategoryMapper.java b/api/src/main/java/fr/gameovergne/api/mapper/app/CategoryMapper.java
index 5c518cf..7ee803f 100644
--- a/api/src/main/java/fr/gameovergne/api/mapper/app/CategoryMapper.java
+++ b/api/src/main/java/fr/gameovergne/api/mapper/app/CategoryMapper.java
@@ -10,6 +10,7 @@ public class CategoryMapper {
     public Category fromDto(CategoryDTO categoryDTO) {
         if (categoryDTO == null) return null;
         Category category = new Category();
+        category.setId(categoryDTO.getId());
         category.setName(categoryDTO.getName());
         return category;
     }
@@ -17,6 +18,7 @@ public class CategoryMapper {
     public CategoryDTO toDto(Category category) {
         if (category == null) return null;
         CategoryDTO categoryDTO = new CategoryDTO();
+        categoryDTO.setId(category.getId());
         categoryDTO.setName(category.getName());
         return categoryDTO;
     }
diff --git a/api/src/main/java/fr/gameovergne/api/mapper/app/PlatformMapper.java b/api/src/main/java/fr/gameovergne/api/mapper/app/PlatformMapper.java
index de1680c..ccd3481 100644
--- a/api/src/main/java/fr/gameovergne/api/mapper/app/PlatformMapper.java
+++ b/api/src/main/java/fr/gameovergne/api/mapper/app/PlatformMapper.java
@@ -18,6 +18,7 @@ public class PlatformMapper {
     public Platform fromDto(PlatformDTO platformDTO) {
         if (platformDTO == null) return null;
         Platform platform = new Platform();
+        platform.setId(platformDTO.getId());
         platform.setName(platformDTO.getName());
 
         if (platformDTO.getBrandDTO() != null && platformDTO.getBrandDTO().getName() != null) {
@@ -31,9 +32,10 @@ public class PlatformMapper {
     public PlatformDTO toDto(Platform platform) {
         if (platform == null) return null;
         PlatformDTO platformDTO = new PlatformDTO();
+        platformDTO.setId(platform.getId());
         platformDTO.setName(platform.getName());
         if (platform.getBrand() != null) {
-            platformDTO.setBrandDTO(new BrandDTO(platform.getBrand().getName()));
+            platformDTO.setBrandDTO(new BrandDTO(platform.getBrand().getId(), platform.getBrand().getName()));
         } else {
             platformDTO.setBrandDTO(null);
         }
diff --git a/api/src/main/java/fr/gameovergne/api/mapper/app/ProductMapper.java b/api/src/main/java/fr/gameovergne/api/mapper/app/ProductMapper.java
index 91a8ae9..bd767d3 100644
--- a/api/src/main/java/fr/gameovergne/api/mapper/app/ProductMapper.java
+++ b/api/src/main/java/fr/gameovergne/api/mapper/app/ProductMapper.java
@@ -90,7 +90,7 @@ public class ProductMapper {
         productDTO.setManualIncluded(product.isManualIncluded());
 
         if (product.getCategory() != null) {
-            productDTO.setCategoryDTO(new CategoryDTO(product.getCategory().getName()));
+            productDTO.setCategoryDTO(new CategoryDTO(product.getCategory().getId(), product.getCategory().getName()));
         } else {
             productDTO.setCategoryDTO(null);
         }
@@ -101,7 +101,7 @@ public class ProductMapper {
             platformDTO.setName(platform.getName());
 
             if (platform.getBrand() != null) {
-                platformDTO.setBrandDTO(new BrandDTO(platform.getBrand().getName()));
+                platformDTO.setBrandDTO(new BrandDTO(platform.getBrand().getId(), platform.getBrand().getName()));
             } else {
                 platformDTO.setBrandDTO(null);
             }