'How to request a single document by _id via alias?

Is it possible to request a single document by its id by querying an alias, provided that all keys across all indices in the alias are unique (it is an external guarantee)?

Solution 1:^[1]

From Elasticsearch 5.1 the query looks like:

GET /my_alias_name/_search/
{
    "query": { 
        "bool": {
         "filter": {
                "term": {
                   "_id": "AUwNrOZsm6BwwrmnodbW"
                }
            }
        }
    }
}

Solution 2:^[2]

7.2 version Docs suggest:

GET /_search
{
    "query": {
        "ids" : {
            "values" : ["1", "4", "100"]
        }
    }
}

Response should look like:

{
  "took": 0,
  "timed_out": false,
  "_shards": {
    "total": 2,
    "successful": 2,
    "skipped": 0,
    "failed": 0
  },
  "hits": {
    "total": {
      "value": 1,
      "relation": "eq"
    },
    "max_score": 1.0,
    "hits": [
      {
        "_index": "indexwhatever",
        "_type": "_doc",
        "_id": "anyID",
        "_score": 1.0,
        "_source": {
          "field1": "value1",
          "field2": "value2"
        }
      }
    ]
  }
}

Solution 3:^[3]

In case you want to find a document with some internal id with curl:

curl -X GET 'localhost:9200/_search?q=id:42&pretty'

Solution 4:^[4]

Following Elasticsearch 8.2 Doc, you can retrieve a single document by using GET API:

GET my-index-000001/_doc/0

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution	Source
Solution 1	Shams
Solution 2	michaelbn
Solution 3	Aliaksei
Solution 4	Cong

'How to request a single document by _id via alias?

Solution 1:[1]

Solution 2:[2]

Solution 3:[3]

Solution 4:[4]

Sources

Related Questions

Solution 1:^[1]

Solution 2:^[2]

Solution 3:^[3]

Solution 4:^[4]