```ruby
# frozen_string_literal: true

Raven.configure do |config|
  config.dsn = ENV.fetch('SENTRY_DSN')

  config.sanitize_fields = Rails.application.config.filter_parameters.map(&:to_s)
end
```

Disable sentry if env SENTRY_DSN is empty
user
```ruby
# frozen_string_literal: true

if Rails.env.production? && ENV['SENTRY_DSN']
  Raven.configure do |config|
    config.dsn = ENV['SENTRY_DSN']

    config.sanitize_fields = Rails.application.config.filter_parameters.map(&:to_s)
  end
end
```
assistant