Learning Elasticsearch

Updating a partial document

We already indexed the document with the unique identifier 1, and now we need to update the category of the product from just books to technical books. We can update the document as shown here:

 POST http://localhost:9200/chapter1/product/1/_update {   "doc": {     "category": "technical books"   } }

The body of the request is the field of the document we want to update and the unique identifier is passed in the URL.

Please note the _update endpoint at the end of the URL.

The response from Elasticsearch is shown here:

{   "_index": "chapter1",   "_type": "product",   "_id": "1",   "_version": 3,   "_shards": {     "total": 1,     "successful": 1,     "failed": 0   } }

As you can see in the response, the operation is successful, and the version ...