refactor: standardize API endpoint paths and enhance datetime handling

- Updated API endpoint paths in pad, template pad, and user routers to remove trailing slashes for consistency.
- Enhanced datetime handling in BackupService to include timezone information, improving accuracy in backup creation timing.
- Adjusted frontend API calls to align with the updated endpoint structure, ensuring seamless integration across the application.

Author: atyrode

src/backend/database/service/backup_service.py

@@ -4,7 +4,7 @@
 
 from typing import List, Optional, Dict, Any
 from uuid import UUID
-from datetime import datetime
+from datetime import datetime, timezone
 
 from sqlalchemy.ext.asyncio import AsyncSession
 
@@ -149,8 +149,8 @@ async def create_backup_if_needed(self, source_id: UUID, data: Dict[str, Any],
         # Get the latest backup
         latest_backup = await self.repository.get_latest_by_source(source_id)
 
-        # Calculate the current time
-        current_time = datetime.now()
+        # Calculate the current time with timezone information
+        current_time = datetime.now(timezone.utc)
 
         # Determine if we need to create a backup
         create_backup = False

src/backend/routers/pad_router.py

@@ -10,7 +10,7 @@
 pad_router = APIRouter()
 
 
-@pad_router.post("/")
+@pad_router.post("")
 async def save_canvas(
     data: Dict[str, Any], 
     user: UserSession = Depends(require_auth),
@@ -47,7 +47,7 @@ async def save_canvas(
         raise HTTPException(status_code=500, detail=f"Failed to save canvas data: {str(e)}")
 
 
-@pad_router.get("/")
+@pad_router.get("")
 async def get_canvas(
     user: UserSession = Depends(require_auth),
     pad_service: PadService = Depends(get_pad_service),

src/backend/routers/template_pad_router.py

@@ -9,7 +9,7 @@
 template_pad_router = APIRouter()
 
 
-@template_pad_router.post("/")
+@template_pad_router.post("")
 async def create_template_pad(
     data: Dict[str, Any],
     name: str,
@@ -29,7 +29,7 @@ async def create_template_pad(
         raise HTTPException(status_code=400, detail=str(e))
 
 
-@template_pad_router.get("/")
+@template_pad_router.get("")
 async def get_all_template_pads(
     _: bool = Depends(require_admin),
     template_pad_service: TemplatePadService = Depends(get_template_pad_service)

src/backend/routers/user_router.py

@@ -12,7 +12,7 @@
 user_router = APIRouter()
 
 
-@user_router.post("/")
+@user_router.post("")
 async def create_user(
     user_id: UUID,
     username: str, 
@@ -42,7 +42,7 @@ async def create_user(
         raise HTTPException(status_code=400, detail=str(e))
 
 
-@user_router.get("/")
+@user_router.get("")
 async def get_all_users(
     _: bool = Depends(require_admin),
     user_service: UserService = Depends(get_user_service)

src/frontend/src/api/hooks.ts

@@ -97,7 +97,7 @@ export const api = {
   // Canvas
   getCanvas: async (): Promise<CanvasData> => {
     try {
-      const result = await fetchApi('/api/pad/');
+      const result = await fetchApi('/api/pad');
       return result;
     } catch (error) {
       throw error;
@@ -106,7 +106,7 @@ export const api = {
 
   saveCanvas: async (data: CanvasData): Promise<any> => {
     try {
-      const result = await fetchApi('/api/pad/', {
+      const result = await fetchApi('/api/pad', {
         method: 'POST',
         body: JSON.stringify(data),
       });