{
   "type": "index",
   "spec": {
     "dataSchema": {
        "dataSource": "dev.supercell",
        "parser": {
            "parseSpec": {
                "format": "json",
                "dimensionsSpec": {"dimensionExclusions": []},
                "timestampSpec": {
                    "column": "timestamp",
                    "format": "iso"
                }
            }
        },
      "granularitySpec": {
          "segmentGranularity": "DAY",
          "queryGranularity": "minute",
          "intervals": ["2015-01-01T00:00:00.000Z/2015-01-02T00:00:00.000Z"]
      },
      "metricsSpec" : [{
        "type" : "count",
        "name" : "count"
      }]
    },
    "tuningConfig": {"type": "index"},

    "ioConfig": {
        "type": "index",
        "firehose": {
            "type": "ingestSegment",
            "dataSource": "dev.supercell",
            "interval" : "2015-01-01/2015-01-02"
        }
    }

  }}