layout	title	parent	grand_parent	nav_order
default	Put mapping	Index APIs	REST API reference	200

Put mapping

Introduced 1.0 {: .label .label-purple }

The put mapping API operation lets you add new mappings and fields to an index.

Example

PUT /sample-index/_mapping
{
  "properties": {
    "age": {
      "type": "integer"
    },
    "occupation":{
      "type": "text"
    }
  }
}

PUT /<target-index>/_mapping
PUT /_mapping

All put mapping parameters are optional.

Parameter	Data Type	Description
<target-index>	Data Type	The index to add the mapping to. If you do not specify this parameter, OpenSearch adds the mapping to all indices within the cluster.
allow_no_indices	Boolean	Whether to ignore wildcards that don’t match any indices. Default is `true`.
expand_wildcards	String	Expands wildcard expressions to different indices. Combine multiple values with commas. Available values are `all` (match all indices), `open` (match open indices), `closed` (match closed indices), `hidden` (match hidden indices), and `none` (do not accept wildcard expressions), which must be used with `open`, `closed`, or both. Default is `open`.
ignore_unavailable	Boolean	If true, OpenSearch does not include missing or closed indices in the response.
master_timeout	Time	How long to wait for a connection to the master node. Default is `30s`.
timeout	Time	How long to wait for a response from the cluster. Default is `30s`.
write_index_only	Boolean	Whether OpenSearch should add the mapping only to write indexes. If false, OpenSearch can add the mapping to all indexes with the same alias. See alias for more information. Default is false.

The request body must contain the properties object, which has all of the mappings that you want to add.

{
  "properties":{
    "color":{
      "type": "text"
    },
    "year":{
      "type": "integer"
    }
  }
}

{
    "acknowledged": true
}