Try out exception notification gem

Gemfile

@@ -105,6 +105,7 @@ gem 'newrelic_rpm',  group: [:production, :staging]
 gem 'rack-mini-profiler'
 gem 'lograge'
 gem 'multi_logger'
+gem 'exception_notification'
 
 # ---------- API ----------
 

Gemfile.lock

@@ -215,6 +215,9 @@ GEM
       activesupport (>= 3.2)
     erubis (2.7.0)
     eventmachine (1.0.4)
+    exception_notification (4.1.1)
+      actionmailer (>= 3.0.4)
+      activesupport (>= 3.0.4)
     execjs (2.2.2)
     eye (0.6.4)
       celluloid (~> 0.15.0)
@@ -697,6 +700,7 @@ DEPENDENCIES
   devise
   email_spec
   enumerize (>= 0.5.1)
+  exception_notification
   eye
   factory_girl_rails
   fakeredis

app/objects/service/fastbill_api.rb

@@ -53,9 +53,8 @@ def fastbill_create_customer
           attributes[:customer_number] = @seller.id
           customer = Fastbill::Automatic::Customer.create(attributes)
           @seller.update_attribute :fastbill_id, customer.customer_id
-          Rails.logger.fastbill.info { "Fastbill profile created for user #{@seller.id}" }
         rescue => e
-          Rails.logger.fastbill.error { "Fastbill profile creation failed for user #{@seller.id}\n#{e.inspect} #{e.backtrace}" }
+          ExceptionNotifier.notify_exception(e, data: { user: @seller.id })
         end
       end
     end
@@ -115,9 +114,8 @@ def fastbill_create_subscription
           )
           @bt.send("billed_for_#{ type }=", true)
           @bt.save
-          Rails.logger.fastbill.info { "Fastbill usage data sent for business transaction #{@bt.id}" }
         rescue => e
-          Rails.logger.fastbill.error { "Fastbill usage data failed for business transaction #{@bt.id}\n#{e.inspect} #{e.backtrace}" }
+          ExceptionNotifier.notify_exception(e, data: { business_transaction: @bt.id })
         end
       end
     end

config/environments/staging.rb

@@ -80,4 +80,11 @@
   #Memcached
   config.cache_store = :dalli_store, 'localhost', { :namespace => "fairmondo", :expires_in => 1.day, :compress => true }
 
+  config.middleware.use ExceptionNotification::Rack,
+    ignore_crawlers: %w{Googlebot bingbot},
+    email: {
+      email_prefix: '[Staging] ',
+      sender_address: %{"Exception notifier" <notifier@fairmondo.de>},
+      exception_recipients: %w{exceptions@fairmondo.de}
+    }
 end

test/objects/fastbill_api_test.rb

@@ -53,7 +53,7 @@
             db_business_transaction # to trigger observers before
             api = FastbillAPI.new db_business_transaction
             Fastbill::Automatic::Customer.stub :create, -> (_arg) { raise StandardError.new } do
-              Rails.logger.fastbill.expects(:error)
+              ExceptionNotifier.expects(:notify_exception)
               api.fastbill_chain
             end
           end
@@ -70,7 +70,7 @@
           db_business_transaction # to trigger observers before
           api = FastbillAPI.new db_business_transaction
           Fastbill::Automatic::Subscription.stub :setusagedata, -> (_arg) { raise StandardError.new } do
-            Rails.logger.fastbill.expects(:error).twice
+            ExceptionNotifier.expects(:notify_exception).twice
             api.fastbill_chain
           end
         end