first commit

app/core/exceptions.py

@@ -0,0 +1,21 @@
+from fastapi import HTTPException
+
+
+class NotFoundError(HTTPException):
+    def __init__(self, detail: str = "Resource not found"):
+        super().__init__(status_code=404, detail=detail)
+
+
+class BadRequestError(HTTPException):
+    def __init__(self, detail: str = "Bad request"):
+        super().__init__(status_code=400, detail=detail)
+
+
+class UnauthorizedError(HTTPException):
+    def __init__(self, detail: str = "Not authenticated"):
+        super().__init__(status_code=401, detail=detail, headers={"WWW-Authenticate": "Bearer"})
+
+
+class ForbiddenError(HTTPException):
+    def __init__(self, detail: str = "Forbidden"):
+        super().__init__(status_code=403, detail=detail)