Selecting a teacher for kids HAL example

1_kid.json

{
  "_links" : {
    "self" : {"href" : "/kids/123"},
    "teacher" : {"href" : "/teachers/999"},
    "possible-teacher": {"href" : "/kids/123/possible-teachers"}
  },
  "name" : "Johnny",
  "mom_phone" : "5554443333"
}

2_possible_teachers.json

{
  "_links" : {
    "self" : {"href" : "/kids/123/possible-teachers"}
  },
  "_embedded": {
    "possible-teacher": [
	{
		"id": 999,
		"name": "Marta",
		"_links": {
			"choose-teacher": {"href": "/kids/123/teacher"},
			"teacher": {"href" : "/teachers/999"}
		}
	},
	"/* ... other teachers ... */"
    ]
  }
}

option_1.md

{
  "_links" : {
    "self" : {"href" : "/kids/123"},
    "teacher" : {"href" : "/teachers/999"}
  },
  "name" : "Johnny",
  "mom_phone" : "5554443333"
}

// PATCH /kids/123 HTTP/1.1
// Host: example.org
[
  { "op": "replace", "path": "/_links/teacher/href", "value": "/teachers/888" },
]