elasticsearchHow can I use Elasticsearch to find a document by a specific field?
Elasticsearch can be used to find a document by a specific field using the match
query. This query looks for documents that contain a specified field with a specified value. For example, to search for a document that contains the field title
with the value example
:
GET /_search
{
"query": {
"match": {
"title": "example"
}
}
}
The output of this query would be the documents that contain the field title
with the value example
:
{
"hits": {
"total": 1,
"max_score": 0.2876821,
"hits": [
{
"_index": "my_index",
"_type": "_doc",
"_id": "1",
"_score": 0.2876821,
"_source": {
"title": "example"
}
}
]
}
}
The parts of the code are as follows:
GET /_search
- This is the endpoint for the search query."query": {
- This is the start of the query body."match": {
- This is the start of thematch
query."title": "example"
- This is the field and value to match.}
- This closes thematch
query.}
- This closes the query body.
Helpful links
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