Get terms in an index Added in 7.14.0

GET /{index}/_terms_enum
Api key auth Basic auth Bearer auth

Discover terms that match a partial string in an index. This API is designed for low-latency look-ups used in auto-complete scenarios.


The terms enum API may return terms from deleted documents. Deleted documents are initially only marked as deleted. It is not until their segments are merged that documents are actually deleted. Until that happens, the terms enum API will return terms from these documents.

Path parameters

  • index string Required

    A comma-separated list of data streams, indices, and index aliases to search. Wildcard (*) expressions are supported. To search all data streams or indices, omit this parameter or use * or _all.

application/json

Body

  • field string Required

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

  • size number

    The number of matching terms to return.

  • timeout string

    A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.

  • case_insensitive boolean

    When true, the provided search string is matched against index terms without case sensitivity.

  • index_filter object

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

    External documentation
  • string string

    The string to match at the start of indexed terms. If it is not provided, all terms in the field are considered.


    The prefix string cannot be larger than the largest possible keyword value, which is Lucene's term byte-length limit of 32766.

  • search_after string

    The string after which terms in the index should be returned. It allows for a form of pagination if the last result from one request is passed as the search_after parameter for a subsequent request.

Responses

GET /{index}/_terms_enum 
POST stackoverflow/_terms_enum
{
    "field" : "tags",
    "string" : "kiba"
}
curl \
 --request GET 'http://api.example.com/{index}/_terms_enum' \
 --header "Authorization: $API_KEY" \
 --header "Content-Type: application/json" \
 --data '"{\n    \"field\" : \"tags\",\n    \"string\" : \"kiba\"\n}"'
Request example
Run `POST stackoverflow/_terms_enum`. 
{
    "field" : "tags",
    "string" : "kiba"
}
Response examples (200)
A successful response from `POST stackoverflow/_terms_enum`. 
{
  "_shards": {
    "total": 1,
    "successful": 1,
    "failed": 0
  },
  "terms": [
    "kibana"
  ],
  "complete" : true
}