Method: Mongo::Auth::Aws::Request#region

Defined in:
lib/mongo/auth/aws/request.rb

#region ⇒ String

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns region The region of the host, derived from the host.

Returns:

  • (String) —

    region The region of the host, derived from the host.

Since:

  • 2.0.0



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# File 'lib/mongo/auth/aws/request.rb', line 107

def region
  # Common case
  if host == 'sts.amazonaws.com'
    return 'us-east-1'
  end

  if host.start_with?('.')
    raise Error::InvalidServerAuthHost, "Host begins with a period: #{host}"
  end
  if host.end_with?('.')
    raise Error::InvalidServerAuthHost, "Host ends with a period: #{host}"
  end

  parts = host.split('.')
  if parts.any? { |part| part.empty? }
    raise Error::InvalidServerAuthHost, "Host has an empty component: #{host}"
  end

  if parts.length == 1
    'us-east-1'
  else
    parts[1]
  end
end