title: How to add array to okhttp body (POST)
body: <p>Now i`m adding array as string to body:</p>
  
  <pre><code>RequestBody body = new FormEncodingBuilder()
      .add("profiles", "[122, 125, 336]")
      .build();
  </code></pre>
  
  <p>But the server need array on post parameter. How can i add array instead of string? Is it posible with okhttp? </p>