OpenSearch/rest-api-spec/api/explain.json

{
  "explain": {
    "documentation": "http://www.elasticsearch.org/guide/en/elasticsearch/reference/master/search-explain.html",
    "methods": ["GET", "POST"],
    "url": {
      "path": "/{index}/{type}/{id}/_explain",
      "paths": ["/{index}/{type}/{id}/_explain"],
      "parts": {
        "id": {
          "type" : "string",
          "required" : true,
          "description" : "The document ID"
        },
        "index": {
          "type" : "string",
          "required" : true,
          "description" : "The name of the index"
        },
        "type": {
          "type" : "string",
          "required" : true,
          "description" : "The type of the document"
        }
      },
      "params": {
        "analyze_wildcard": {
          "type" : "boolean",
          "description" : "Specify whether wildcards and prefix queries in the query string query should be analyzed (default: false)"
        },
        "analyzer": {
          "type" : "string",
          "description" : "The analyzer for the query string query"
        },
        "default_operator": {
          "type" : "enum",
          "options" : ["AND","OR"],
          "default" : "OR",
          "description" : "The default operator for query string query (AND or OR)"
        },
        "df": {
          "type" : "string",
          "description" : "The default field for query string query (default: _all)"
        },
        "fields": {
          "type": "list",
          "description" : "A comma-separated list of fields to return in the response"
        },
        "lenient": {
          "type" : "boolean",
          "description" : "Specify whether format-based query failures (such as providing text to a numeric field) should be ignored"
        },
        "lowercase_expanded_terms": {
          "type" : "boolean",
          "description" : "Specify whether query terms should be lowercased"
        },
        "parent": {
          "type" : "string",
          "description" : "The ID of the parent document"
        },
        "preference": {
          "type" : "string",
          "description" : "Specify the node or shard the operation should be performed on (default: random)"
        },
        "q": {
          "type" : "string",
          "description" : "Query in the Lucene query string syntax"
        },
        "routing": {
          "type" : "string",
          "description" : "Specific routing value"
        },
        "source": {
          "type" : "string",
          "description" : "The URL-encoded query definition (instead of using the request body)"
        },
        "_source": {
          "type" : "list",
          "description" : "True or false to return the _source field or not, or a list of fields to return"
        },
        "_source_exclude": {
          "type" : "list",
          "description" : "A list of fields to exclude from the returned _source field"
        },
        "_source_include": {
          "type" : "list",
          "description" : "A list of fields to extract and return from the _source field"
        }
      }
    },
    "body": {
      "description" : "The query definition using the Query DSL"
    }
  }
}