Allow config to not inject the exception hooks

README.md

@@ -51,7 +51,7 @@ $ heroku config:add ROLLBAR_ACCESS_TOKEN=POST_SERVER_ITEM_ACCESS_TOKEN
 
 That's all you need to use Rollbar with Rails.
 
-### If not using Rails
+### If using Rack
 
 Be sure to initialize Rollbar with your access token somewhere during startup:
 
@@ -67,6 +67,28 @@ end
 <!-- RemoveNextIfProject -->
 Be sure to replace ```POST_SERVER_ITEM_ACCESS_TOKEN``` with your project's ```post_server_item``` access token, which you can find in the Rollbar.com interface.
 
+This monkey patches `Rack::Builder` to work with Rollbar automatically.
+
+For more control, disable the monkey patch in the rollbar configuration:
+
+```ruby
+Rollbar.configure do |config|
+  config.disable_monkey_patch = true
+  # other configuration settings
+  # ...
+end
+```
+
+Then mount the middleware in your app, like:
+
+```ruby
+class MyApp < Sinatra::Base
+  use Rollbar::Middleware::Sinatra
+  # other middleware/etc
+  # ...
+end
+```
+
 ## Test your installation
 
 To confirm that it worked, run:

lib/rollbar.rb

@@ -679,6 +679,7 @@ def configuration
     end
 
     def require_hooks
+      return if configuration.disable_monkey_patch
       wrap_delayed_worker
 
       require 'rollbar/sidekiq' if defined?(Sidekiq)

lib/rollbar/configuration.rb

@@ -10,6 +10,7 @@ class Configuration
     attr_accessor :custom_data_method
     attr_accessor :delayed_job_enabled
     attr_accessor :default_logger
+    attr_accessor :disable_monkey_patch
     attr_accessor :dj_threshold
     attr_accessor :enabled
     attr_accessor :endpoint
@@ -47,6 +48,7 @@ def initialize
       @custom_data_method = nil
       @default_logger = lambda { Logger.new(STDERR) }
       @delayed_job_enabled = true
+      @disable_monkey_patch = false
       @dj_threshold = 0
       @enabled = nil  # set to true when configure is called
       @endpoint = DEFAULT_ENDPOINT