Elasticsearch: How insert nested Json array object into Elasticsearch Index

Question

How to insert the following JSON nested array abject into Elasticsearch index named "index_19_7_16"?

{
      "hour": [
        {
          "time": "00:00",
          "master_id": [
            {
              "m.id": 111,
              "m.value": 222
            },
            {
              "m.id": 113,
              "m.value": 444
            }
          ],
          "child_id": [
            {
              "c.id": 77,
              "c.value": 222
            },
            {
              "c.id": 7751,
              "c.value": 444
            }
          ]
        },
        {
          "time": "01:00",
          "master_id": [
            {
              "m.id": 111,
              "m.value": 222
            },
            {
              "m.id": 113,
              "m.value": 444
            }
          ],
          "child_id": [
            {
              "c.id": 77,
              "c.value": 222
            },
            {
              "c.id": 7751,
              "c.value": 444
            }
          ]
        }
      ]
    }

Do I need to created mapping before or just insert the JSON dynamically into elastic index.

Answer 1

You need to create the mapping upfront and specifically mention that some fields have to be "type":"nested" otherwise ES will just create objects. Here I specifically refer to nested type of fields in ES.

If by nested you meant just the nested nature of the document, then you don't have to do anything.