diff --git a/ccm-core/src/main/java/org/libreccm/api/admin/categorization/CategoriesApi.java b/ccm-core/src/main/java/org/libreccm/api/admin/categorization/CategoriesApi.java
index 9b1ae7167..a0b88cb8b 100644
--- a/ccm-core/src/main/java/org/libreccm/api/admin/categorization/CategoriesApi.java
+++ b/ccm-core/src/main/java/org/libreccm/api/admin/categorization/CategoriesApi.java
@@ -164,7 +164,7 @@ public class CategoriesApi {
         // Delete only empty categories!!!
         throw new UnsupportedOperationException();
     }
-    
+
     // delete update category by id @Path("/ID-{categoryId}")
     @DELETE
     @Path("/ID-{categoryId}")
@@ -177,7 +177,7 @@ public class CategoriesApi {
         // Delete only empty categories!!!
         throw new UnsupportedOperationException();
     }
-    
+
     @DELETE
     @Path("/UUID-{categoryUuid}")
     @AuthorizationRequired
@@ -189,15 +189,122 @@ public class CategoriesApi {
         // Delete only empty categories!!!
         throw new UnsupportedOperationException();
     }
-    
-    // GET object in category @Path("/{domain-identifier}/{path}/objects
-    // GET object in category @Path("/ID-{categoryId}
-    // GET object in category @Path("/UUID-{categoryUuid}
-    // PUT object in category @Path("/{domain-identifier}/{path}/objects/{objectIdentifier}
-    // PUT object in category @Path("/ID-{categoryId}/{objectIdentifier}
-    // PUT object in category @Path("/UUID-{categoryUuid}/{objectIdentifier}
-    // DELETE object in category @Path("/{domain-identifier}/{path}/objects/{objectIdentifier}
-    // DELETE object in category @Path("/ID-{categoryId}/{objectIdentifier}
-    // DELETE object in category @Path("/UUID-{categoryUuid}/{objectIdentifier}
-    
+
+    @GET
+    @Path("/{domainIdentifier}/{path:^[\\w\\-/]+$}/objects")
+    @Produces(MediaType.APPLICATION_JSON)
+    @AuthorizationRequired
+    @RequiresPrivilege(CoreConstants.PRIVILEGE_ADMIN)
+    @Transactional(Transactional.TxType.REQUIRED)
+    public CategoryData getObjectsInCategory(
+        @PathParam("domainIdentifier") final String domainIdentifierParam,
+        @PathParam("path") final String categoryPathTokens
+    ) {
+        throw new UnsupportedOperationException();
+    }
+
+    @GET
+    @Path("/ID-{categoryId}/objects")
+    @Produces(MediaType.APPLICATION_JSON)
+    @AuthorizationRequired
+    @RequiresPrivilege(CoreConstants.PRIVILEGE_ADMIN)
+    @Transactional(Transactional.TxType.REQUIRED)
+    public CategoryData getCategoryObjectsInCategory(
+        @PathParam("categoryId") final long categoryId
+    ) {
+        throw new UnsupportedOperationException();
+    }
+
+    @GET
+    @Path("/UUID-{categoryId}/objects")
+    @Produces(MediaType.APPLICATION_JSON)
+    @AuthorizationRequired
+    @RequiresPrivilege(CoreConstants.PRIVILEGE_ADMIN)
+    @Transactional(Transactional.TxType.REQUIRED)
+    public CategoryData getObjectsInCategory(
+        @PathParam("categoryId") final String categoryUuid
+    ) {
+        throw new UnsupportedOperationException();
+    }
+
+    @PUT
+    @Path("/{domainIdentifier}/{path:^[\\w\\-/]+$}/objects/{objectIdentifier}")
+    @Produces(MediaType.APPLICATION_JSON)
+    @AuthorizationRequired
+    @RequiresPrivilege(CoreConstants.PRIVILEGE_ADMIN)
+    @Transactional(Transactional.TxType.REQUIRED)
+    public CategoryData addObjectToCategory(
+        @PathParam("domainIdentifier") final String domainIdentifierParam,
+        @PathParam("path") final String categoryPathTokens,
+        @PathParam("objectIdentifier") final String objectIdentifierParam
+    ) {
+        throw new UnsupportedOperationException();
+    }
+
+    @PUT
+    @Path("/ID-{categoryId}/objects/{objectIdentifier}")
+    @Produces(MediaType.APPLICATION_JSON)
+    @AuthorizationRequired
+    @RequiresPrivilege(CoreConstants.PRIVILEGE_ADMIN)
+    @Transactional(Transactional.TxType.REQUIRED)
+    public CategoryData addObjectToCategory(
+        @PathParam("categoryId") final long categoryId,
+        @PathParam("objectIdentifier") final String objectIdentifier
+    ) {
+        throw new UnsupportedOperationException();
+    }
+
+    @PUT
+    @Path("/UUID-{categoryId}/objects/objectIdentifier")
+    @Produces(MediaType.APPLICATION_JSON)
+    @AuthorizationRequired
+    @RequiresPrivilege(CoreConstants.PRIVILEGE_ADMIN)
+    @Transactional(Transactional.TxType.REQUIRED)
+    public CategoryData addObjectsToCategory(
+        @PathParam("categoryId") final String categoryUuid,
+        @PathParam("objectIdentifier") final String objectIdentifier
+    ) {
+        throw new UnsupportedOperationException();
+    }
+
+    @DELETE
+    @Path("/{domainIdentifier}/{path:^[\\w\\-/]+$}/objects/{objectIdentifier}")
+    @Produces(MediaType.APPLICATION_JSON)
+    @AuthorizationRequired
+    @RequiresPrivilege(CoreConstants.PRIVILEGE_ADMIN)
+    @Transactional(Transactional.TxType.REQUIRED)
+    public CategoryData removeObjectFromCategory(
+        @PathParam("domainIdentifier") final String domainIdentifierParam,
+        @PathParam("path") final String categoryPathTokens,
+        @PathParam("objectIdentifier") final String objectIdentifierParam
+    ) {
+        throw new UnsupportedOperationException();
+    }
+
+    @DELETE
+    @Path("/ID-{categoryId}/objects/{objectIdentifier}")
+    @Produces(MediaType.APPLICATION_JSON)
+    @AuthorizationRequired
+    @RequiresPrivilege(CoreConstants.PRIVILEGE_ADMIN)
+    @Transactional(Transactional.TxType.REQUIRED)
+    public CategoryData removeObjectFromCategory(
+        @PathParam("categoryId") final long categoryId,
+        @PathParam("objectIdentifier") final String objectIdentifier
+    ) {
+        throw new UnsupportedOperationException();
+    }
+
+    @DELETE
+    @Path("/UUID-{categoryId}/objects/objectIdentifier")
+    @Produces(MediaType.APPLICATION_JSON)
+    @AuthorizationRequired
+    @RequiresPrivilege(CoreConstants.PRIVILEGE_ADMIN)
+    @Transactional(Transactional.TxType.REQUIRED)
+    public CategoryData removeObjectsFromCategory(
+        @PathParam("categoryId") final String categoryUuid,
+        @PathParam("objectIdentifier") final String objectIdentifier
+    ) {
+        throw new UnsupportedOperationException();
+    }
+
 }