curl --request GET \
  --url https://api.footwayplus.com/v1/inventory/availableFilters \
  --header 'X-API-KEY: <api-key>'

{
  "totalItems": 123,
  "merchants": {
    "total": 123,
    "values": [
      {
        "id": "<string>",
        "name": "<string>",
        "count": 123
      }
    ]
  },
  "vendors": {
    "total": 123,
    "values": [
      {
        "name": "<string>",
        "count": 123
      }
    ]
  },
  "departments": {
    "total": 123,
    "values": [
      {
        "name": "<string>",
        "count": 123
      }
    ]
  },
  "productGroups": {
    "total": 123,
    "values": [
      {
        "name": "<string>",
        "count": 123
      }
    ]
  },
  "productTypes": {
    "total": 123,
    "values": [
      {
        "name": "<string>",
        "count": 123
      }
    ]
  }
}