[role="xpack"]
[[geo-match-enrich-policy-type]]
=== Example: Enrich your data based on geolocation

`geo_match` <<enrich-policy,enrich policies>> match enrich data to incoming
documents based on a geographic location, using a
<<query-dsl-geo-shape-query,`geo_shape` query>>.

The following example creates a `geo_match` enrich policy that adds postal
codes to incoming documents based on a set of coordinates. It then adds the
`geo_match` enrich policy to a processor in an ingest pipeline.

Use the <<indices-create-index,create index API>> to create a source index
containing at least one `geo_shape` field.

[source,console]
----
PUT /postal_codes
{
  "mappings": {
    "properties": {
      "location": {
        "type": "geo_shape"
      },
      "postal_code": {
        "type": "keyword"
      }
    }
  }
}
----

Use the <<docs-index_,index API>> to index enrich data to this source index.

[source,console]
----
PUT /postal_codes/_doc/1?refresh=wait_for
{
  "location": {
    "type": "envelope",
    "coordinates": [ [ 13.0, 53.0 ], [ 14.0, 52.0 ] ]
  },
  "postal_code": "96598"
}
----
// TEST[continued]

Use the <<put-enrich-policy-api,create enrich policy API>> to create
an enrich policy with the `geo_match` policy type. This policy must include:

* One or more source indices
* A `match_field`,
  the `geo_shape` field from the source indices used to match incoming documents
* Enrich fields from the source indices you'd like to append to incoming
  documents

[source,console]
----
PUT /_enrich/policy/postal_policy
{
  "geo_match": {
    "indices": "postal_codes",
    "match_field": "location",
    "enrich_fields": [ "location", "postal_code" ]
  }
}
----
// TEST[continued]

Use the <<execute-enrich-policy-api,execute enrich policy API>> to create an
enrich index for the policy.

[source,console]
----
POST /_enrich/policy/postal_policy/_execute
----
// TEST[continued]

Use the <<put-pipeline-api,create or update pipeline API>> to create an ingest
pipeline. In the pipeline, add an <<enrich-processor,enrich processor>> that
includes:

* Your enrich policy.
* The `field` of incoming documents used to match the geoshape of documents
  from the enrich index.
* The `target_field` used to store appended enrich data for incoming documents.
  This field contains the `match_field` and `enrich_fields` specified in your
  enrich policy.
* The `shape_relation`, which indicates how the processor matches geoshapes in
  incoming documents to geoshapes in documents from the enrich index. See
  <<_spatial_relations>> for valid options and more information.

[source,console]
----
PUT /_ingest/pipeline/postal_lookup
{
  "processors": [
    {
      "enrich": {
        "description": "Add 'geo_data' based on 'geo_location'",
        "policy_name": "postal_policy",
        "field": "geo_location",
        "target_field": "geo_data",
        "shape_relation": "INTERSECTS"
      }
    }
  ]
}
----
// TEST[continued]

Use the ingest pipeline to index a document. The incoming document should
include the `field` specified in your enrich processor.

[source,console]
----
PUT /users/_doc/0?pipeline=postal_lookup
{
  "first_name": "Mardy",
  "last_name": "Brown",
  "geo_location": "POINT (13.5 52.5)"
}
----
// TEST[continued]

To verify the enrich processor matched and appended the appropriate field data,
use the <<docs-get,get API>> to view the indexed document.

[source,console]
----
GET /users/_doc/0
----
// TEST[continued]

The API returns the following response:

[source,console-result]
----
{
  "found": true,
  "_index": "users",
  "_id": "0",
  "_version": 1,
  "_seq_no": 55,
  "_primary_term": 1,
  "_source": {
    "geo_data": {
      "location": {
        "type": "envelope",
        "coordinates": [[13.0, 53.0], [14.0, 52.0]]
      },
      "postal_code": "96598"
    },
    "first_name": "Mardy",
    "last_name": "Brown",
    "geo_location": "POINT (13.5 52.5)"
  }
}
----
// TESTRESPONSE[s/"_seq_no": \d+/"_seq_no" : $body._seq_no/ s/"_primary_term":1/"_primary_term" : $body._primary_term/]

////
[source,console]
--------------------------------------------------
DELETE /_ingest/pipeline/postal_lookup
DELETE /_enrich/policy/postal_policy
DELETE /postal_codes
DELETE /users
--------------------------------------------------
// TEST[continued]
////