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Get document
Introduced 1.0
After adding a JSON document to your index, you can use the get document API operation to retrieve the document’s information and data.
Example
GET sample-index1/_doc/1
Path and HTTP methods
GET <index>/_doc/<_id>
HEAD <index>/_doc/<_id>
GET <index>/_source/<_id>
HEAD <index>/_source/<_id>
URL parameters
All get document URL parameters are optional.
| Parameter | Type | Description |
|---|---|---|
| preference | String | Specifies a preference of which shard to retrieve results from. Available options are _local, which tells the operation to retrieve results from a locally allocated shard replica, and a custom string value assigned to a specific shard replica. By default, OpenSearch executes get document operations on random shards. |
| realtime | Boolean | Specifies whether the operation should run in realtime. If false, the operation waits for the index to refresh to analyze the source to retrieve data, which makes the operation near-realtime. Default is true. |
| refresh | Boolean | If true, OpenSearch refreshes shards to make the get operation available to search results. Valid options are true, false, and wait_for, which tells OpenSearch to wait for a refresh before executing the operation. Default is false. |
| routing | String | A value used to route the operation to a specific shard. |
| stored_fields | Boolean | Whether the get operation should retrieve fields stored in the index. Default is false. |
| _source | String | Whether to include the _source field in the response body. Default is true. |
| _source_excludes | String | A comma-separated list of source fields to exclude in the query response. |
| _source_includes | String | A comma-separated list of source fields to include in the query response. |
| version | Integer | The version of the document to return, which must match the current version of the document. |
| version_type | Enum | Retrieves a specifically typed document. Available options are external (retrieve the document if the specified version number is greater than the document’s current version) and external_gte (retrieve the document if the specified version number is greater than or equal to the document’s current version). For example, to retrieve version 3 of a document, use /_doc/1?version=3&version_type=external. |
Response
{
"_index": "sample-index1",
"_type": "_doc",
"_id": "1",
"_version": 1,
"_seq_no": 0,
"_primary_term": 9,
"found": true,
"_source": {
"text": "This is just some sample text."
}
}
Response body fields
| Field | Description |
|---|---|
| _index | The name of the index. |
| _type | The document’s type. OpenSearch only supports one type, which is _doc. |
| _id | The document’s ID. |
| _version | The document’s version number. Updated whenever the document changes. |
| _seq_no | The sequnce number assigned when the document is indexed. |
| primary_term | The primary term assigned when the document is indexed. |
| found | Whether the document exists. |
| _routing | The shard that the document is routed to. If the document is not routed to a particular shard, this field is omitted. |
| _source | Contains the document’s data if found is true. If _source is set to false or stored_fields is set to true in the URL parameters, this field is omitted. |
| _fields | Contains the document’s data that’s stored in the index. Only returned if both stored_fields and found are true. |