Method: Elasticsearch::API::Indices::Actions#get_alias

Defined in:
lib/elasticsearch/api/actions/indices/get_alias.rb

#get_alias(arguments = {}) ⇒ Object

Get aliases. Retrieves information for one or more data stream or index aliases.

Parameters:

  • arguments (Hash) (defaults to: {}) —

    a customizable set of options

Options Hash (arguments):

  • :name (String, Array<String>) —

    Comma-separated list of aliases to retrieve. Supports wildcards (‘*`). To retrieve all aliases, omit this parameter or use `*` or `_all`.

  • :index (String, Array) —

    Comma-separated list of data streams or indices used to limit the request. Supports wildcards (‘*`). To target all data streams and indices, omit this parameter or use `*` or `_all`.

  • :allow_no_indices (Boolean) —

    If ‘false`, the request returns an error if any wildcard expression, index alias, or `_all` value targets only missing or closed indices. This behavior applies even if the request targets other open indices. Server default: true.

  • :expand_wildcards (String, Array<String>) —

    Type of index that wildcard patterns can match. If the request can target data streams, this argument determines whether wildcard expressions match hidden data streams. Supports comma-separated values, such as ‘open,hidden`. Server default: open.

  • :ignore_unavailable (Boolean) —

    If ‘false`, the request returns an error if it targets a missing or closed index.

  • :master_timeout (Time) —

    Period to wait for a connection to the master node. If no response is received before the timeout expires, the request fails and returns an error. Server default: 30s.

  • :error_trace (Boolean) —

    When set to ‘true` Elasticsearch will include the full stack trace of errors when they occur.

  • :filter_path (String, Array<String>) —

    Comma-separated list of filters in dot notation which reduce the response returned by Elasticsearch.

  • :human (Boolean) —

    When set to ‘true` will return statistics in a format suitable for humans. For example `“exists_time”: “1h”` for humans and `“exists_time_in_millis”: 3600000` for computers. When disabled the human readable values will be omitted. This makes sense for responses being consumed only by machines.

  • :pretty (Boolean) —

    If set to ‘true` the returned JSON will be “pretty-formatted”. Only use this option for debugging only.

  • :headers (Hash) —

    Custom HTTP headers

See Also:



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# File 'lib/elasticsearch/api/actions/indices/get_alias.rb', line 57

def get_alias(arguments = {})
  request_opts = { endpoint: arguments[:endpoint] || 'indices.get_alias' }

  defined_params = [:name, :index].each_with_object({}) do |variable, set_variables|
    set_variables[variable] = arguments[variable] if arguments.key?(variable)
  end
  request_opts[:defined_params] = defined_params unless defined_params.empty?

  arguments = arguments.clone
  headers = arguments.delete(:headers) || {}

  body = nil

  _name = arguments.delete(:name)

  _index = arguments.delete(:index)

  method = Elasticsearch::API::HTTP_GET
  path   = if _index && _name
             "#{Utils.listify(_index)}/_alias/#{Utils.listify(_name)}"
           elsif _index
             "#{Utils.listify(_index)}/_alias"
           elsif _name
             "_alias/#{Utils.listify(_name)}"
           else
             '_alias'
           end
  params = Utils.process_params(arguments)

  Elasticsearch::API::Response.new(
    perform_request(method, path, params, body, headers, request_opts)
  )
end