title: How to expose enum values in a REST API
body: <p>In a mobility context of use of the API, an advanced research proposes several dynamic filters that must be returned by the server. (We don't want to make too many exchange with server to initialize our filters)</p>
  
  <p>In a REST api, how to expose a enum of possible values ​​for filter search? </p>
  
  <p>Thank you for your suggestions/ideas?</p>