diff --git a/api/v1/node.py b/api/v1/node.py
index 64786f6..f37515f 100644
--- a/api/v1/node.py
+++ b/api/v1/node.py
@@ -72,11 +72,11 @@ async def _get_image_data(tags: dict[str, str], photo_state: PhotoStateDep) -> d
 
 @router.get('/node/{node_id}')
 @configure_cache(timedelta(minutes=1), stale=timedelta(minutes=5))
-async def get_node(node_id: str, aed_state: AEDStateDep, photo_state: PhotoStateDep):
+async def get_node(node_id: int, aed_state: AEDStateDep, photo_state: PhotoStateDep):
     aed = await aed_state.get_aed_by_id(node_id)
 
     if aed is None:
-        raise HTTPException(404, f'Node {node_id!r} not found')
+        raise HTTPException(404, f'Node {node_id} not found')
 
     photo_dict = await _get_image_data(aed.tags, photo_state)
 
diff --git a/api/v1/photos.py b/api/v1/photos.py
index 8f0885e..f46f9c6 100644
--- a/api/v1/photos.py
+++ b/api/v1/photos.py
@@ -90,7 +90,7 @@ async def proxy_wikimedia_commons(path_encoded: str) -> FileResponse:
 @router.post('/upload')
 async def upload(
     request: Request,
-    node_id: Annotated[str, Form()],
+    node_id: Annotated[int, Form()],
     file_license: Annotated[str, Form()],
     file: Annotated[UploadFile, File()],
     oauth2_credentials: Annotated[str, Form()],
@@ -119,7 +119,7 @@ async def upload(
 
     aed = await aed_state.get_aed_by_id(node_id)
     if aed is None:
-        raise HTTPException(404, f'Node {node_id!r} not found, perhaps it is not an AED?')
+        raise HTTPException(404, f'Node {node_id} not found, perhaps it is not an AED?')
 
     osm = OpenStreetMap(oauth2_credentials_)
     osm_user = await osm.get_authorized_user()
@@ -129,7 +129,7 @@ async def upload(
     if osm_user_has_active_block(osm_user):
         raise HTTPException(403, 'User has an active block on OpenStreetMap')
 
-    photo_info = await photo_state.set_photo(node_id, str(osm_user['id']), file)
+    photo_info = await photo_state.set_photo(node_id, osm_user['id'], file)
     photo_url = f'{request.base_url}api/v1/photos/view/{photo_info.id}.webp'
 
     node_xml = await osm.get_node_xml(node_id)
diff --git a/openstreetmap.py b/openstreetmap.py
index 75c90da..4416c9f 100644
--- a/openstreetmap.py
+++ b/openstreetmap.py
@@ -28,7 +28,7 @@ async def get_authorized_user(self) -> dict | None:
         return r.json()['user']
 
     @retry_exponential(timedelta(seconds=10))
-    async def get_node_xml(self, node_id: str) -> dict | None:
+    async def get_node_xml(self, node_id: int) -> dict | None:
         r = await self._http.get(f'/node/{node_id}')
 
         if r.status_code in (404, 410):
diff --git a/states/aed_state.py b/states/aed_state.py
index 18fde38..d44ae64 100644
--- a/states/aed_state.py
+++ b/states/aed_state.py
@@ -138,7 +138,7 @@ def _process_create_or_modify(node: dict) -> AED | str:
             return node_id
 
     def _process_delete(node: dict) -> str:
-        node_id = str(node['@id'])
+        node_id = int(node['@id'])
         return node_id
 
     if action['@type'] in ('create', 'modify'):
@@ -270,7 +270,7 @@ async def get_aeds_within_geom(self, geometry, group_eps: float | None) -> Seque
 
         return tuple(result)
 
-    async def get_aed_by_id(self, aed_id: str) -> AED | None:
+    async def get_aed_by_id(self, aed_id: int) -> AED | None:
         doc = await AED_COLLECTION.find_one({'id': aed_id}, projection={'_id': False})
         return from_dict(AED, doc) if doc else None
 
diff --git a/states/photo_state.py b/states/photo_state.py
index 5f21a3f..5f45c1b 100644
--- a/states/photo_state.py
+++ b/states/photo_state.py
@@ -4,7 +4,6 @@
 from typing import Annotated
 
 import anyio
-import pymongo
 from dacite import from_dict
 from fastapi import Depends, UploadFile
 from PIL import Image, ImageOps
@@ -90,36 +89,20 @@ async def get_photo_by_id(self, id: str, *, check_file: bool = True) -> PhotoInf
 
         return info
 
-    async def get_photo_by_node_id(self, node_id: str) -> PhotoInfo | None:
-        cursor = PHOTO_COLLECTION.find(
-            {'node_id': node_id},
-            projection={'_id': False},
-        ).sort('timestamp', pymongo.DESCENDING)
-
-        async for c in cursor:
-            info = from_dict(PhotoInfo, c)
-
-            # find newest, non-deleted photo
-            # NOTE: maybe delete missing photos from database? if at least one successful
-            if await info.path.is_file():
-                return info
-
-        return None
-
-    async def set_photo(self, node_id: str, user_id: str, file: UploadFile) -> PhotoInfo:
+    async def set_photo(self, node_id: int, user_id: int, file: UploadFile) -> PhotoInfo:
         info = PhotoInfo(
             id=secrets.token_urlsafe(16),
-            node_id=node_id,
-            user_id=user_id,
+            node_id=str(node_id),
+            user_id=str(user_id),
             timestamp=time(),
         )
 
         img = Image.open(file.file)
-        img = await anyio.to_thread.run_sync(ImageOps.exif_transpose, img)
-        img = await anyio.to_thread.run_sync(_resize_image, img)
-        img_b = await anyio.to_thread.run_sync(_optimize_image, img)
+        img = ImageOps.exif_transpose(img)
+        img = _resize_image(img)
+        img_bytes = await anyio.to_thread.run_sync(_optimize_image, img)
 
-        await info.path.write_bytes(img_b)
+        await info.path.write_bytes(img_bytes)
         await PHOTO_COLLECTION.insert_one(as_dict(info))
         return info