curl --request GET \
  --url https://api-{region}-{cluster}.benchmarkemail.com/api/reports/dashboard \
  --header 'X-API-Key: <api-key>'

{
  "campaign": {
    "delivered": {
      "count": 2203,
      "diff": 11.3
    },
    "sent": {
      "count": 2379,
      "diff": 0.76
    },
    "uniqueClicks": {
      "count": {
        "diff": -21.52,
        "value": 569
      },
      "rate": {
        "diff": 20.47,
        "value": 25.83
      }
    },
    "uniqueOpens": {
      "count": {
        "diff": -23.41,
        "value": 733
      },
      "rate": {
        "diff": -22.41,
        "value": 33.27
      }
    }
  },
  "contact": {
    "count": {
      "diff": 29.55,
      "value": 5900
    },
    "histogram": {
      "end": "2024-10-29T00:00:00.000Z",
      "histogram": [
        {
          "date": "2024-09-23T17:00:00.000Z",
          "total": 4
        }
      ],
      "peak": {
        "date": "2024-09-23T17:00:00.000Z",
        "total": 4
      },
      "start": "2024-09-29T00:00:00.000Z"
    }
  }
}