style(go-pkg): rename pkg

errpkg/error.go

@@ -0,0 +1,24 @@
+package errpkg
+
+type Error struct {
+	err  string
+	code int32
+}
+
+func New(err string, codes ...int32) error {
+	e := &Error{
+		err: err,
+	}
+	if len(codes) > 0 {
+		e.code = codes[0]
+	}
+	return e
+}
+
+func (e *Error) Error() (err string) {
+	return e.err
+}
+
+func (e *Error) Code() int32 {
+	return e.code
+}