Apologies for late reply.
So do I understand the question well that you want to use “link_row_has” filter on the “link to table” field from the API?
Creating such filter manually in the interface reveals the filter definition (in the response of the request - see e.g. browser network tab):
{
"id": 17895,
"view": 40529,
"field": 279222,
"type": "link_row_has",
"value": "4",
"preload_values": {
"display_name": "Test"
}
}
So it seems that one has to use this type with a specific Id of the item from the linked table. So the filter can only filter on an existing options, providing the id as the value
.