Get multiple documents Generally available

POST /{index}/_mget

All methods and paths for this operation:

GET /_mget

POST /_mget
GET /{index}/_mget
POST /{index}/_mget

Get multiple JSON documents by ID from one or more indices. If you specify an index in the request URI, you only need to specify the document IDs in the request body. To ensure fast responses, this multi get (mget) API responds with partial results if one or more shards fail.

Filter source fields

By default, the _source field is returned for every document (if stored). Use the _source and _source_include or source_exclude attributes to filter what fields are returned for a particular document. You can include the _source, _source_includes, and _source_excludes query parameters in the request URI to specify the defaults to use when there are no per-document instructions.

Get stored fields

Use the stored_fields attribute to specify the set of stored fields you want to retrieve. Any requested fields that are not stored are ignored. You can include the stored_fields query parameter in the request URI to specify the defaults to use when there are no per-document instructions.

Required authorization

  • Index privileges: read

Path parameters

  • index string Required

    Name of the index to retrieve documents from when ids are specified, or when a document in the docs array does not specify an index.

Query parameters

  • preference string

    Specifies the node or shard the operation should be performed on. Random by default.

  • realtime boolean

    If true, the request is real-time as opposed to near-real-time.

  • refresh boolean

    If true, the request refreshes relevant shards before retrieving documents.

  • routing string

    Custom value used to route operations to a specific shard.

  • _source boolean | string | array[string]

    True or false to return the _source field or not, or a list of fields to return.

  • _source_excludes string | array[string]

    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_includes query parameter.

  • _source_includes string | array[string]

    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_excludes query parameter. If the _source parameter is false, this parameter is ignored.

  • stored_fields string | array[string]

    If true, retrieves the document fields stored in the index rather than the document _source.

application/json

Body Required

  • docs array[object]

    The documents you want to retrieve. Required if no index is specified in the request URI.

    Hide docs attributes Show docs attributes object
    • _id string Required

      The unique document ID.

    • _index string

      The index that contains the document.

    • routing string

      The key for the primary shard the document resides on. Required if routing is used during indexing.

    • _source boolean | object

      If false, excludes all _source fields.

      One of:

      If false, excludes all _source fields.

    • stored_fields string | array[string]

      The stored fields you want to retrieve.

    • version number
    • version_type string

      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: The external_gte version 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, or force.

  • ids string | array[string]

    The IDs of the documents you want to retrieve. Allowed when the index is specified in the request URI.

    One of:

    The IDs of the documents you want to retrieve. Allowed when the index is specified in the request URI.

Responses

  • 200 application/json
    Hide response attribute Show response attribute object
    • docs array[object] Required

      The response includes a docs array that contains the documents in the order specified in the request. The structure of the returned documents is similar to that returned by the get API. If there is a failure getting a particular document, the error is included in place of the document.

      One of:
      Hide attributes Show attributes
      • _index string Required

        The name of the index the document belongs to.

      • fields object

        If the stored_fields parameter is set to true and found is true, it contains the document fields stored in the index.

        Hide fields attribute Show fields attribute object
        • * object Additional properties
      • _ignored array[string]
      • found boolean Required

        Indicates whether the document exists.

      • _id string Required

        The unique identifier for the document.

      • _primary_term number

        The primary term assigned to the document for the indexing operation.

      • _routing string

        The explicit routing, if set.

      • _seq_no number

        The sequence number assigned to the document for the indexing operation. Sequence numbers are used to ensure an older version of a document doesn't overwrite a newer version.

      • _source object

        If found is true, it contains the document data formatted in JSON. If the _source parameter is set to false or the stored_fields parameter is set to true, it is excluded.

      • _version number

        The document version, which is ncremented each time the document is updated.

GET /my-index-000001/_mget
{
  "docs": [
    {
      "_id": "1"
    },
    {
      "_id": "2"
    }
  ]
}
resp = client.mget(
    index="my-index-000001",
    docs=[
        {
            "_id": "1"
        },
        {
            "_id": "2"
        }
    ],
)
const response = await client.mget({
  index: "my-index-000001",
  docs: [
    {
      _id: "1",
    },
    {
      _id: "2",
    },
  ],
});
response = client.mget(
  index: "my-index-000001",
  body: {
    "docs": [
      {
        "_id": "1"
      },
      {
        "_id": "2"
      }
    ]
  }
)
$resp = $client->mget([
    "index" => "my-index-000001",
    "body" => [
        "docs" => array(
            [
                "_id" => "1",
            ],
            [
                "_id" => "2",
            ],
        ),
    ],
]);
curl -X GET -H "Authorization: ApiKey $ELASTIC_API_KEY" -H "Content-Type: application/json" -d '{"docs":[{"_id":"1"},{"_id":"2"}]}' "$ELASTICSEARCH_URL/my-index-000001/_mget"
client.mget(m -> m
    .docs(List.of(MultiGetOperation.of(mu -> mu
            .id("1")),MultiGetOperation.of(mu -> mu
            .id("2"))))
    .index("my-index-000001")
);
Run `GET /my-index-000001/_mget`. When you specify an index in the request URI, only the document IDs are required in the request body.
{
  "docs": [
    {
      "_id": "1"
    },
    {
      "_id": "2"
    }
  ]
}
Run `GET /_mget`. This request sets `_source` to `false` for document 1 to exclude the source entirely. It retrieves `field3` and `field4` from document 2. It retrieves the `user` field from document 3 but filters out the `user.location` field.
{
  "docs": [
    {
      "_index": "test",
      "_id": "1",
      "_source": false
    },
    {
      "_index": "test",
      "_id": "2",
      "_source": [ "field3", "field4" ]
    },
    {
      "_index": "test",
      "_id": "3",
      "_source": {
        "include": [ "user" ],
        "exclude": [ "user.location" ]
      }
    }
  ]
}
Run `GET /_mget`. This request retrieves `field1` and `field2` from document 1 and `field3` and `field4` from document 2.
{
  "docs": [
    {
      "_index": "test",
      "_id": "1",
      "stored_fields": [ "field1", "field2" ]
    },
    {
      "_index": "test",
      "_id": "2",
      "stored_fields": [ "field3", "field4" ]
    }
  ]
}
Run `GET /_mget?routing=key1`. If routing is used during indexing, you need to specify the routing value to retrieve documents. This request fetches `test/_doc/2` from the shard corresponding to routing key `key1`. It fetches `test/_doc/1` from the shard corresponding to routing key `key2`.
{
  "docs": [
    {
      "_index": "test",
      "_id": "1",
      "routing": "key2"
    },
    {
      "_index": "test",
      "_id": "2"
    }
  ]
}