JezK
Edit File: example_service_proxy.rb
### # This is an example of how to use Rack-Proxy in a Rails application. # # Setup: # 1. rails new test_app # 2. cd test_app # 3. install Rack-Proxy in `Gemfile` # a. `gem 'rack-proxy', '~> 0.7.4'` # 4. install gem: `bundle install` # 5. create `config/initializers/proxy.rb` adding this line `require 'rack_proxy_examples/example_service_proxy'` # 6. run: `SERVICE_URL=http://guides.rubyonrails.org rails server` # 7. open in browser: `http://localhost:3000/example_service` # ### ENV['SERVICE_URL'] ||= 'http://guides.rubyonrails.org' class ExampleServiceProxy < Rack::Proxy def perform_request(env) request = Rack::Request.new(env) # use rack proxy for anything hitting our host app at /example_service if request.path =~ %r{^/example_service} backend = URI(ENV['SERVICE_URL']) # most backends required host set properly, but rack-proxy doesn't set this for you automatically # even when a backend host is passed in via the options env["HTTP_HOST"] = backend.host # This is the only path that needs to be set currently on Rails 5 & greater env['PATH_INFO'] = ENV['SERVICE_PATH'] || '/configuring.html' # don't send your sites cookies to target service, unless it is a trusted internal service that can parse all your cookies env['HTTP_COOKIE'] = '' super(env) else @app.call(env) end end end Rails.application.config.middleware.use ExampleServiceProxy, backend: ENV['SERVICE_URL'], streaming: false