Spring Data Rest @EmbeddedId cannot be constructed from Post Request

Question

I have a JPA entity Person and an entity Team. Both are joined by an entity PersonToTeam. This joining entity holds a many-to-one relation to

Answer 1

After running into the same issue I found a solution. Your code should be fine, except I return new PersonToTeamId() instead of the DefaultIdConverter if id is null in fromRequestId().

Assuming you are using JSON in your post request you have to wrap personId and teamId in an id object:

{
  "id": {
    "personId": "foo",
    "teamId": "bar"
  },
  ...
}

And in cases where a part of the @EmbeddedId is not a simple data type but a foreign key:

{
  "id": {
    "stringId": "foo",
    "foreignKeyId": "http://localhost:8080/path/to/other/resource/1"
  },
  ...
}