diff --git a/src/auth/dependencies.py b/src/auth/dependencies.py
new file mode 100644
index 0000000..4e1d847
--- /dev/null
+++ b/src/auth/dependencies.py
@@ -0,0 +1,17 @@
+from fastapi import Header, HTTPException
+from typing import Annotated
+import uuid
+
+async def get_current_user(x_auth_sub: Annotated[str | None, Header()] = None) -> uuid.UUID:
+    if not x_auth_sub:
+        raise HTTPException(
+            status_code=401,
+            detail="Unauthorized"
+        )
+    try:
+        return uuid.UUID(x_auth_sub)
+    except ValueError:
+        raise HTTPException(
+            status_code=401,
+            detail="Unauthorized"
+        ) 
\ No newline at end of file