From edc0b2945b554f8798004111b795fdac38ebe0f3 Mon Sep 17 00:00:00 2001
From: Runar Ingebrigtsen <runar@rin.no>
Date: Tue, 23 Jun 2026 14:52:51 +0200
Subject: [PATCH] tolerate empty string result from Fiken API

---
 lib/fiken/object.rb       | 3 ++-
 spec/fiken/object_spec.rb | 4 ++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/fiken/object.rb b/lib/fiken/object.rb
index 84950a9..028e0e6 100644
--- a/lib/fiken/object.rb
+++ b/lib/fiken/object.rb
@@ -12,7 +12,8 @@ module Fiken
   class Object
     def initialize(attributes = {})
       @attributes = {}
-      (attributes || {}).each { |key, value| @attributes[key.to_sym] = wrap(value) }
+      attributes = {} unless attributes.is_a?(Hash)
+      attributes.each { |key, value| @attributes[key.to_sym] = wrap(value) }
     end
 
     def [](key)
diff --git a/spec/fiken/object_spec.rb b/spec/fiken/object_spec.rb
index d817000..44f394a 100644
--- a/spec/fiken/object_spec.rb
+++ b/spec/fiken/object_spec.rb
@@ -46,4 +46,8 @@ RSpec.describe Fiken::Object do
     expect(object.key?(:invoiceNumber)).to be(true)
     expect(object.key?(:missing)).to be(false)
   end
+
+  it "treats a non-Hash body (e.g. empty string from a 204 response) as empty" do
+    expect(described_class.new("").keys).to eq([])
+  end
 end