How to nested include through models relationships LOOPBACK? - loopbackjs

Question

Lets continue with the Patient - Physician analogy from the Loopback Docs. Let's make the assumption that Physician model looks like this:
{
"id": "4654654654654654654",
"name": "John Doe"
}
and Patient model looks basiclally the same (only id and name) and two models are connected with HasManyThrough relationship with through model called Appointment as in the docs. https://loopback.io/doc/en/lb2/HasManyThrough-relations.html
My question is, when you GET to /api/physicians url how can you query the response so it includes the appointment date as well as patient for every physician?
Wanted output:
{
"id": "4654654654654654654",
"name": "John Doe",
"patients": [
{ "id": "1321232313", "name": "First Patient", "appointment_date": 1995-12-17T03:24:00 },
{ "id": "1321232313", "name": "Second Patient", "appointment_date": 1995-12-17T03:24:00 }
]
}
Field "appointment_date" is the date from the appointment through model and patient names are obtained through nested including of same model.
Any thoughts?

Answer 1

Use Nested Include Just check link Its help.
Please check this Code :
physicians.find(
{
include: {
"relation": "Appointment",
"scope": {
"fields": ["id", "patientId", "AppointmentDate", "physiciansId"], /*need to include both Person and PersonID fields for this to work*/
"include": {
"relation": "patient",
"scope": {
"fields": {"id": true, "patienName": true},
where: {id: patientId},
}
}
}
}
}