handle the response in the controller

app/controllers/discourse_donations/charges_controller.rb

@@ -14,6 +14,7 @@ module DiscourseDonations
       else
         payment = DiscourseDonations::Stripe.new(secret_key, stripe_options)
         response = payment.charge(email, params)
+        response['message'] = response['outcome']['seller_message']
       end
 
       response['rewards'] = []

app/services/discourse_donations/stripe.rb

@@ -20,7 +20,6 @@ module DiscourseDonations
         description: description,
         currency: currency
       )
-      @charge[:message] = @charge[:outcome][:seller_message] if @charge[:outcome]
       @charge
     end
 

spec/controllers/discourse_donations/charges_controller_spec.rb

@@ -79,7 +79,7 @@ module DiscourseDonations
         end
 
         it 'has no rewards' do
-          stripe.expects(:create).returns({ outcome: { seller_message: 'bummer' } })
+          stripe.expects(:create).returns({ 'outcome' => { 'seller_message' => 'bummer' } })
           post :create
           expect(response_rewards).to be_empty
         end

spec/services/discourse_donations/stripe_spec.rb

@@ -34,13 +34,6 @@ module DiscourseDonations
       subject.charge(email, params)
     end
 
-    it 'has a message' do
-      ::Stripe::Customer.expects(:create).returns(customer)
-      ::Stripe::Charge.expects(:create).returns({ outcome: { seller_message: 'yay!' } })
-      response = subject.charge(email, params)
-      expect(response[:message]).to eq 'yay!'
-    end
-
     describe '.successful?' do
       let(:charge_options) { { customer: customer.id, amount: params[:amount], description: stripe_options[:description], currency: stripe_options[:currency] } }