title: How to run a simple Spotify app
body: <p>I want to develop an app with the Spotify API. I have downloaded the Spotify library for Windows and also set path in environmental variables for <code>spotify.dll</code>. I am trying to run the simple "hello word" example available on the Spotify developers site but I am getting an error with the Spotify function </p>
  
  <blockquote>
    <p>getSpotifyApi(1);</p>
  </blockquote>
  
  <p>I don't know what exactly this function does.</p>
  
  <p>Is it required to put <code>API_key</code> in code file? I don't have the <code>appkey.c</code> file in Spotify library right now. Are <code>API_key</code> and the <code>appkey.c</code> file required for running simple applications? Are there additional requirements for running simple examples?</p>