{
  "field_stats": {
    "documentation": "http://www.elastic.co/guide/en/elasticsearch/reference/master/search-field-stats.html",
    "methods": ["GET", "POST"],
    "url": {
      "path": "/_field_stats",
      "paths": [
        "/_field_stats",
        "/{index}/_field_stats"
      ],
      "parts": {
        "index": {
          "type" : "list",
          "description" : "A comma-separated list of index names; use `_all` or empty string to perform the operation on all indices"
        }
      },
      "params": {
        "fields": {
          "type" : "list",
          "description" : "A comma-separated list of fields for to get field statistics for (min value, max value, and more)"
        },
        "level": {
          "type" : "enum",
          "options" : ["indices", "cluster"],
          "default" : "cluster",
          "description" : "Defines if field stats should be returned on a per index level or on a cluster wide level"
        },
        "ignore_unavailable": {
          "type" : "boolean",
          "description" : "Whether specified concrete indices should be ignored when unavailable (missing or closed)"
        },
        "allow_no_indices": {
          "type" : "boolean",
          "description" : "Whether to ignore if a wildcard indices expression resolves into no concrete indices. (This includes `_all` string or when no indices have been specified)"
        },
        "expand_wildcards": {
          "type" : "enum",
          "options" : ["open","closed","none","all"],
          "default" : "open",
          "description" : "Whether to expand wildcard expression to concrete indices that are open, closed or both."
        }
      }
    },
    "body": null
  }
}