lib/manifold/railtie.rb
module Manifold
class Engine < Rails::Railtie
config.manifold = Manifold.config
initializer "manifold.middleware" do |app|
app.config.middleware.insert 0, Manifold::Middleware
end
initializer "manifold.headers" do |app|
app.config.manifold.expose << "X-Request-Id"
app.config.manifold.expose << "X-Runtime"
app.config.manifold.expose << "X-Rack-Cache"
end
end
end