Monitor Elastic Search Re-Index Progress

Ah, I stand corrected. When we use group_by=none we get an array!

{
    "tasks": [
        {
            "node": "6tgOP8JVSmai0c0uR_Co7g",
            "id": 609579,
            "type": "transport",
            "action": "indices:data/write/reindex",
            "start_time_in_millis": 1523870243676,
            "running_time_in_nanos": 540175604651,
            "cancellable": true,
            "headers": {}
        }
    ]
}

Thanks Igor!