Get the trend of ETCD gRPC call

GET /v1/monitoring-etcd/metric/rpc-rate/result/transition?clusterIds=text&start=text&end=text HTTP/1.1
Accept: */*

[
  {
    "metrics": {
      "cluster": "thingcluster",
      "measure": "total"
    },
    "samples": [
      38.76296,
      38.72593,
      39.16296
    ],
    "timestamps": [
      1687741080,
      1687741140,
      1687741200
    ],
    "values": null
  }
]