Simulate an index Generally available; Added in 7.9.0

POST /_index_template/_simulate_index/{name}
Api key auth Basic auth Bearer auth

Get the index configuration that would be applied to the specified index from an existing index template.

Required authorization

  • Cluster privileges: manage_index_templates

Path parameters

  • name string Required

    Name of the index to simulate

Query parameters

  • create boolean

    Whether the index template we optionally defined in the body should only be dry-run added if new or can also replace an existing one

  • cause string

    User defined reason for dry-run creating the new template for simulation purposes

  • master_timeout string

    Period to wait for a connection to the master node. If no response is received before the timeout expires, the request fails and returns an error.

    Values are -1 or 0.

  • include_defaults boolean

    If true, returns all relevant default configurations for the index template.

Responses

  • 200 application/json
    Hide response attributes Show response attributes object
    • overlapping array[object]
      Hide overlapping attributes Show overlapping attributes object
      • name string Required
      • index_patterns array[string] Required
    • template object Required
      Hide template attributes Show template attributes object
      • aliases object Required
        Hide aliases attribute Show aliases attribute object
        • * object Additional properties
          Hide * attributes Show * attributes object
          • filter object

            An Elasticsearch Query DSL (Domain Specific Language) object that defines a query.

            External documentation
          • index_routing string
          • is_hidden boolean

            If true, the alias is hidden. All indices for the alias must have the same is_hidden value.

          • is_write_index boolean

            If true, the index is the write index for the alias.

          • routing string
          • search_routing string
      • mappings object Required
        Hide mappings attributes Show mappings attributes object
        • all_field object
          Hide all_field attributes Show all_field attributes object
          • analyzer string Required
          • enabled boolean Required
          • omit_norms boolean Required
          • search_analyzer string Required
          • similarity string Required
          • store boolean Required
          • store_term_vector_offsets boolean Required
          • store_term_vector_payloads boolean Required
          • store_term_vector_positions boolean Required
          • store_term_vectors boolean Required
        • date_detection boolean
        • dynamic string

          Values are strict, runtime, true, or false.

        • dynamic_date_formats array[string]
        • dynamic_templates array[object]
        • _field_names object
          Hide _field_names attribute Show _field_names attribute object
          • enabled boolean Required
        • index_field object
          Hide index_field attribute Show index_field attribute object
          • enabled boolean Required
        • _meta object
          Hide _meta attribute Show _meta attribute object
          • * object Additional properties
        • numeric_detection boolean
        • properties object
        • _routing object
          Hide _routing attribute Show _routing attribute object
          • required boolean Required
        • _size object
          Hide _size attribute Show _size attribute object
          • enabled boolean Required
        • _source object
          Hide _source attributes Show _source attributes object
          • compress boolean
          • compress_threshold string
          • enabled boolean
          • excludes array[string]
          • includes array[string]
          • mode string

            Values are disabled, stored, or synthetic.

        • runtime object
          Hide runtime attribute Show runtime attribute object
          • * object Additional properties
            Hide * attributes Show * attributes object
            • fields object

              For type composite

              Hide fields attribute Show fields attribute object
              • * object Additional properties
            • fetch_fields array[object]

              For type lookup

            • format string

              A custom format for date type runtime fields.

            • input_field string

              Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.

            • target_field string

              Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.

            • target_index string
            • script object
              Hide script attributes Show script attributes object
              • source
              • id string
              • params object

                Specifies any named parameters that are passed into the script as variables. Use parameters instead of hard-coded values to decrease compile time.

              • lang
              • options object
            • type string Required

              Values are boolean, composite, date, double, geo_point, geo_shape, ip, keyword, long, or lookup.

        • enabled boolean
        • subobjects string

          Values are true or false.

        • _data_stream_timestamp object
          Hide _data_stream_timestamp attribute Show _data_stream_timestamp attribute object
          • enabled boolean Required
      • settings object Required
        Index settings
POST /_index_template/_simulate_index/{name} 
POST /_index_template/_simulate_index/my-index-000001

resp = client.indices.simulate_index_template(
    name="my-index-000001",
)
const response = await client.indices.simulateIndexTemplate({
  name: "my-index-000001",
});
response = client.indices.simulate_index_template(
  name: "my-index-000001"
)
$resp = $client->indices()->simulateIndexTemplate([
    "name" => "my-index-000001",
]);
curl -X POST -H "Authorization: ApiKey $ELASTIC_API_KEY" "$ELASTICSEARCH_URL/_index_template/_simulate_index/my-index-000001"
Response examples (200)
A successful response from `POST /_index_template/_simulate_index/my-index-000001`. 
{
  "template" : {
    "settings" : {
      "index" : {
        "number_of_shards" : "2",
        "number_of_replicas" : "0",
        "routing" : {
          "allocation" : {
            "include" : {
              "_tier_preference" : "data_content"
            }
          }
        }
      }
    },
    "mappings" : {
      "properties" : {
        "@timestamp" : {
          "type" : "date"
        }
      }
    },
    "aliases" : { }
  },
  "overlapping" : [
    {
      "name" : "template_1",
      "index_patterns" : [
        "my-index-*"
      ]
    }
  ]
}