Retrieve the ring groups which current user belongs.
GET /api/user/ring_groups HTTP/1.1
Host: hostname:8887
Authorization: Bearer YOUR_SECRET_TOKEN
Accept: */*
{
"items": [
{
"id": "NzAwNTUxOTA5NzczMTQ4MTYw",
"name": "text",
"extension_number": "text"
}
]
}