I have a netcore api as backend and angular 4 as front end. When I use httpClient get, the call returns the following json.
{
"$id": "242",
"$values": [
{
"$id": "243",
"name": "AAA",
"value": 1
},
{
"$id": "244",
"name": "BBB",
"value": 8
},
....
}
The "$id" changes with every call. Where does the "$id" generate ?