1 files changed, 12 insertions, 0 deletions
diff --git a/core/errors.go b/core/errors.go
new file mode 100644
index 0000000..a50fbf7
--- /dev/null
+++ b/core/errors.go
@@ -0,0 +1,12 @@
+package core
+
+import "errors"
+
+var (
+	ErrUnexpectedPayloadType = errors.New("unexpected payload type")
+	ErrAuthInvalidUser       = errors.New("invalid user")
+	ErrAuthInvalidPassword   = errors.New("invalid password")
+	ErrInvalidAddress        = errors.New("invalid address")
+	ErrNotSupported          = errors.New("not supported")
+	ErrDisconnected          = errors.New("disconnected")
+)