title: Web API 2: how searching
body: <p>In ASP Web API 2 i'd like to implement a search feature in my REST URI.</p>
  
  <p>For example if i have the resource Customers</p>
  
  <pre><code>/base_url/customers
  /base_url/customers/1
  ....
  </code></pre>
  
  <p>i'd like for example implement:</p>
  
  <pre><code>/base_url/customers?active=true
  </code></pre>
  
  <p>How can i implement the searching in the Web API 2 controller? (I don't want use the OData protocol because i have DTO object: my controller must interface with DTO object and not directly with model objects).</p>