curl --request GET \
  --url https://api.hotglue.com/{env_id}/{flow_id}/{tenant}/connectors/{connector_id}/availableFilters \
  --header 'x-api-key: <api-key>'

{
  "filters_version": "1.0.0",
  "reference_data": {
    "vendors": [
      {
        "vendor_id": "27",
        "vendor_name": "Acme Corp"
      },
      {
        "vendor_id": "62",
        "vendor_name": "Globex LLC"
      }
    ]
  },
  "streams": {
    "bills": {
      "supported_operators": [
        "AND",
        "OR"
      ],
      "supports_nesting_clauses": true,
      "filters": {
        "vendor_id": {
          "label": "Bill Vendor ID",
          "supported_operators": [
            "EQ",
            "NEQ",
            "IN",
            "NOT IN",
            "LIKE"
          ],
          "target_field": "vendor_id",
          "options": "reference_data.vendors"
        },
        "vendor_name": {
          "label": "Bill Vendor Name",
          "supported_operators": [
            "EQ",
            "NEQ",
            "IN",
            "NOT IN",
            "LIKE"
          ],
          "target_field": "vendor_name",
          "options": "reference_data.vendors"
        },
        "status": {
          "label": "Bill Status",
          "supported_operators": [
            "EQ",
            "NEQ",
            "IN",
            "NOT IN"
          ],
          "target_field": "status",
          "options": [
            {
              "status": "Pending Approval"
            },
            {
              "status": "Approved"
            },
            {
              "status": "Paid"
            }
          ]
        }
      }
    }
  }
}