1 files changed, 8 insertions, 0 deletions
diff --git a/gn3/oauth2/errors.py b/gn3/oauth2/errors.py
new file mode 100644
index 0000000..f8cfd2c
--- /dev/null
+++ b/gn3/oauth2/errors.py
@@ -0,0 +1,8 @@
+"""List of possible errors."""
+
+class AuthorisationError(Exception):
+    """Top-level error class dealing with generic authorisation errors."""
+
+
+class TokenValidationError(AuthorisationError):
+    """Class to indicate that token validation failed."""