WARNING: Version 1.5 of Elasticsearch has passed its EOL date.
This documentation is no longer being maintained and may be removed. If you are running this version, we strongly advise you to upgrade. For the latest information, see the current release documentation.
Validate API
editValidate API
editThe validate API allows a user to validate a potentially expensive query without executing it. The following example shows how it can be used:
curl -XPUT 'http://localhost:9200/twitter/tweet/1' -d '{ "user" : "kimchy", "post_date" : "2009-11-15T14:12:12", "message" : "trying out Elasticsearch" }'
When the query is valid, the response contains valid:true
:
curl -XGET 'http://localhost:9200/twitter/_validate/query?q=user:foo' {"valid":true,"_shards":{"total":1,"successful":1,"failed":0}}
Or, with a request body:
curl -XGET 'http://localhost:9200/twitter/tweet/_validate/query' -d '{ "query" : { "filtered" : { "query" : { "query_string" : { "query" : "*:*" } }, "filter" : { "term" : { "user" : "kimchy" } } } } }' {"valid":true,"_shards":{"total":1,"successful":1,"failed":0}}
The query being sent in the body must be nested in a query
key, same as
the search api works
If the query is invalid, valid
will be false
. Here the query is
invalid because Elasticsearch knows the post_date field should be a date
due to dynamic mapping, and foo does not correctly parse into a date:
curl -XGET 'http://localhost:9200/twitter/tweet/_validate/query?q=post_date:foo' {"valid":false,"_shards":{"total":1,"successful":1,"failed":0}}
An explain
parameter can be specified to get more detailed information
about why a query failed:
curl -XGET 'http://localhost:9200/twitter/tweet/_validate/query?q=post_date:foo&pretty=true&explain=true' { "valid" : false, "_shards" : { "total" : 1, "successful" : 1, "failed" : 0 }, "explanations" : [ { "index" : "twitter", "valid" : false, "error" : "org.elasticsearch.index.query.QueryParsingException: [twitter] Failed to parse; org.elasticsearch.ElasticsearchParseException: failed to parse date field [foo], tried both date format [dateOptionalTime], and timestamp number; java.lang.IllegalArgumentException: Invalid format: \"foo\"" } ] }