title: Using nginx to simulate slow response time for testing purposes
body: <p>I'm developing a facebook canvas application and I want to load-test it. I'm aware of the facebook restriction on automated testing, so I simulated the graph api calls by creating a fake web application served under nginx and altering my /etc/hosts to point graph.facebook.com to 127.0.0.1.</p>
  
  <p>I'm using jmeter to load-test the application and the simulation is working ok. Now I want to simulate slow graph api responses and see how they affect my application. How can I configure nginx so that it inserts a delay to each request sent to the simulated graph.facebook.com application?</p>