How to use the update API in elastic search query for updating the data in the data set

Question

How to add a new data field to an existing dataset using Update API in elsticsearch. For example if dataset already contains fields like id but now I need to add a new field name Name and pass a value A.

Answer 1

you can use below code to add for example an email field to your existing index

PUT /my-index-000001/_mapping
{
  "properties": {
    "email": {
      "type": "keyword"
    }
  }
}

refrence: https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-put-mapping.html