133 lines
3.5 KiB
Plaintext
133 lines
3.5 KiB
Plaintext
[[search-count]]
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=== Count API
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Gets the number of matches for a search query.
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[source,console]
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--------------------------------------------------
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GET /twitter/_count?q=user:kimchy
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--------------------------------------------------
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// TEST[setup:twitter]
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NOTE: The query being sent in the body must be nested in a `query` key, same as
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the <<search-search,search api>> works.
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[[search-count-api-request]]
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==== {api-request-title}
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`GET /<target>/_count`
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[[search-count-api-desc]]
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==== {api-description-title}
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The count API allows you to execute a query and get the number of matches for
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that query. The query can either
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be provided using a simple query string as a parameter, or using the
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<<query-dsl,Query DSL>> defined within the request body.
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The count API supports <<multi-index,multi-target syntax>>. You can run a single
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count API search across multiple data streams and indices.
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The operation is broadcast across all shards. For each shard id group, a replica
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is chosen and executed against it. This means that replicas increase the
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scalability of count.
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[[search-count-api-path-params]]
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==== {api-path-parms-title}
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`<target>`::
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(Optional, string)
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Comma-separated list or wildcard (`*`) expression of data streams, indices,
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and index aliases used to limit the search.
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+
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To search all data streams and indices in a cluster, omit this parameter or use
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`_all` or `*`.
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[[search-count-api-query-params]]
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==== {api-query-parms-title}
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include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=allow-no-indices]
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+
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Defaults to `true`.
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include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=analyzer]
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include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=analyze_wildcard]
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include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=default_operator]
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include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=df]
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include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=expand-wildcards]
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+
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Defaults to `open`.
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include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=ignore_throttled]
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include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=index-ignore-unavailable]
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include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=lenient]
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`min_score`::
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(Optional, float)
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Sets the minimum `_score` value that documents must have to be included in the
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result.
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include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=preference]
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include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=search-q]
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include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=routing]
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include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=terminate_after]
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[[search-count-request-body]]
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==== {api-request-body-title}
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include::{es-repo-dir}/rest-api/common-parms.asciidoc[tag=query]
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[[search-count-api-example]]
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==== {api-examples-title}
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[source,console]
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--------------------------------------------------
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PUT /twitter/_doc/1?refresh
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{
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"user": "kimchy"
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}
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GET /twitter/_count?q=user:kimchy
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GET /twitter/_count
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{
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"query" : {
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"term" : { "user" : "kimchy" }
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}
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}
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--------------------------------------------------
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Both examples above do the same: count the number of tweets from the `twitter`
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index for a certain user. The API returns the following response:
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[source,console-result]
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--------------------------------------------------
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{
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"count" : 1,
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"_shards" : {
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"total" : 1,
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"successful" : 1,
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"skipped" : 0,
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"failed" : 0
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}
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}
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--------------------------------------------------
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The query is optional, and when not provided, it will use `match_all` to
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count all the docs.
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