title: From where does Relay fetch the Schema of GraphQL?
body: <p>I am having a running GraphQL based server and I am able to test it properly using GraphiQL. But I am unable to understand the implementation of Relay. </p>
  
  <p>As GraphQL is on the server side, then how its schema is transferred to relay over network layer at the client end? Or how it is pointing to the same GraphQL?</p>