title: Spring Data Rest ID conversion using HashIDs
body: <p>We have a concern exposing internal IDs to the outside world. Therefore I'm thinking about using a hashing mechanism (current choice is hashids) to hash our IDs.</p>
  
  <p>I tried to use a @JsonSerializer and @JsonDeserializer mapping on the Entities ID field. But this only takes effect when including the ID in the body, and has no impact on the IDs in the URL paths.</p>
  
  <p>Is there a possibility to do this, e.g. something like an ID Translation SPI?</p>