curl -X GET 'https://api.airbridge.io/dataspec/v1/apps/{app_name}/active-users-report/groupbys' \
  -H 'Accept-Language: ko' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer {AIRBRIDGE-API-TOKEN}'

{
  "data": [
    {
      "name": "Touchpoint",
      "fields": [
        {
          "key": "channel",
          "name": "Channel",
          "description": "The media source of the touchpoint.",
          "example": "moloco",
          "isFilter": true,
          "isApp": true,
          "isWeb": true,
          "type": "string"
        },
        {
          "key": "campaign",
          "name": "Campaign",
          "description": "The campaign that generated the touchpoint. The campaign name entered in SAN or collected by the campaign parameter of the tracking link.",
          "example": "2018_summer_campaign",
          "isFilter": true,
          "isApp": true,
          "isWeb": true,
          "type": "string"
        }
      ]
    },
    {
      "name": "Device",
      "fields": [
        {
          "key": "device_type",
          "name": "Device Type",
          "description": "Device Type\n- mobile\n- tablet\n- desktop\n- other",
          "example": "mobile",
          "isFilter": true,
          "isApp": true,
          "isWeb": true,
          "type": "string"
        },
        {
          "key": "platform",
          "name": "Platform",
          "description": "Device Platform\n- Android\n- iOS\n- Desktop\n- Other",
          "example": "Android",
          "isFilter": true,
          "isApp": true,
          "isWeb": true,
          "type": "string"
        }
      ]
    }
  ]
}

{
  "type": "about:blank",
  "title": "Not Found",
  "status": 404,
  "traceId": "1-000000-000000000000000"
}