title: Is it possible to secure only one spring boot rest endpoint via certificate?
body: <p>some infos about the architecture:
  - we are running in cloud foundry (with https routes)
  - we have a gateway (spring cloud Netflix zuul)
  - our apps are internally secured by a token</p>
  
  <p>if you need some other infos, just ask.</p>
  
  <p>now we want to secure one route of our gateway (<code>api/v1/authorizations</code>) by certificate. so that only the client which has this certificate, can call this endpoint.</p>
  
  <p>is that possible?</p>