Delete Elasticsearch Index: 2 Methods

There are two ways to delete all data under an index in Elasticsearch.

1. Using the DeleteByQuery API: This is a query-based method for deletion that allows you to delete data from an index based on the query criteria. Below is an example request:

POST /your_index/_delete_by_query
{
  "query": {
    "match_all": {}
  }
}

The above request will match all documents in the index and delete them.

1. The Delete Index API is a method for directly removing an entire index. Here is an example request:

DELETE /your_index

The above request will delete the entire index named “your_index”.

Please note that the deletion of data is irreversible, so please ensure that the data you truly want to delete is correct before performing the deletion operation.