The get mapping API allows to retrieve mapping definitions for an index or index/type.

GET /twitter/_mapping/_doc

Multiple Indices and Typesedit

The get mapping API can be used to get more than one index or type mapping with a single call. General usage of the API follows the following syntax: host:port/{index}/_mapping/{type} where both {index} and {type} can accept a comma-separated list of names. To get mappings for all indices you can use _all for {index}. The following are some examples:

GET /_mapping/_doc

GET /_all/_mapping/_doc

If you want to get mappings of all indices and types then the following two examples are equivalent:

GET /_all/_mapping

GET /_mapping

Skipping typesedit

Types are being removed from Elasticsearch: in 7.0, the mappings element will no longer return the type name as a top-level key by default. You can already opt in for this behavior by setting include_type_name=false on the request.

Here is an example:

PUT test?include_type_name=false
{
  "mappings": {
    "properties": {
      "foo": {
        "type": "keyword"
      }
    }
  }
}

GET test/_mappings?include_type_name=false

which returns

{
  "test": {
    "mappings": {
      "properties": {
        "foo": {
          "type": "keyword"
        }
      }
    }
  }
}