Check a document
Generally available
Verify that a document exists.
For example, check to see if a document with the _id 0 exists:
HEAD my-index-000001/_doc/0
If the document exists, the API returns a status code of 200 - OK.
If the document doesn’t exist, the API returns 404 - Not Found.
Versioning support
You can use the version parameter to check the document only if its current version is equal to the specified one.
Internally, Elasticsearch has marked the old document as deleted and added an entirely new document. The old version of the document doesn't disappear immediately, although you won't be able to access it. Elasticsearch cleans up deleted documents in the background as you continue to index more data.
Path parameters
-
A comma-separated list of data streams, indices, and aliases. It supports wildcards (
*). -
A unique document identifier.
Query parameters
-
The node or shard the operation should be performed on. By default, the operation is randomized between the shard replicas.
If it is set to
_local, the operation will prefer to be run on a local allocated shard when possible. If it is set to a custom value, the value is used to guarantee that the same shards will be used for the same custom value. This can help with "jumping values" when hitting different shards in different refresh states. A sample value can be something like the web session ID or the user name. -
If
true, the request is real-time as opposed to near-real-time. -
If
true, the request refreshes the relevant shards before retrieving the document. Setting it totrueshould be done after careful thought and verification that this does not cause a heavy load on the system (and slow down indexing). -
A custom value used to route operations to a specific shard.
-
Indicates whether to return the
_sourcefield (trueorfalse) or lists the fields to return. -
A comma-separated list of source fields to exclude from the response. You can also use this parameter to exclude fields from the subset specified in
_source_includesquery parameter. If the_sourceparameter isfalse, this parameter is ignored. -
A comma-separated list of source fields to include in the response. If this parameter is specified, only these source fields are returned. You can exclude fields from this subset using the
_source_excludesquery parameter. If the_sourceparameter isfalse, this parameter is ignored. -
A comma-separated list of stored fields to return as part of a hit. If no fields are specified, no stored fields are included in the response. If this field is specified, the
_sourceparameter defaults tofalse. -
Explicit version number for concurrency control. The specified version must match the current version of the document for the request to succeed.
-
The version type.
Supported values include:
internal: Use internal versioning that starts at 1 and increments with each update or delete.external: Only index the document if the specified version is strictly higher than the version of the stored document or if there is no existing document.external_gte: Only index the document if the specified version is equal or higher than the version of the stored document or if there is no existing document. NOTE: Theexternal_gteversion type is meant for special use cases and should be used with care. If used incorrectly, it can result in loss of data.force: This option is deprecated because it can cause primary and replica shards to diverge.
Values are
internal,external,external_gte, orforce.
HEAD my-index-000001/_doc/0
resp = client.exists(
index="my-index-000001",
id="0",
)const response = await client.exists({
index: "my-index-000001",
id: 0,
});response = client.exists(
index: "my-index-000001",
id: "0"
)$resp = $client->exists([
"index" => "my-index-000001",
"id" => "0",
]);curl --head -H "Authorization: ApiKey $ELASTIC_API_KEY" "$ELASTICSEARCH_URL/my-index-000001/_doc/0"client.exists(e -> e
.id("0")
.index("my-index-000001")
);