title: RESTful API - Custom Application - C#, Java, php?
body: <p>This is really basic.I  want to implement a RESTful web API. </p>
  
  <p>Now I know you can write custom applications and scripts to integrate with the API. </p>
  
  <p>What I need to know:</p>
  
  <ul>
  <li>In what languages can you write this API? C#, Java, php?</li>
  <li>When building/programming a program that implements this API, is this the client and the software that issued the API the server? (eg. Dropbox would be the server and the custom app that integrates with the Dropbox API is the Client?</li>
  </ul>
  
  <p>Thank you. </p>