url := 'https://$self.host/' + urllib.path_escape('_matrix/client/r0/$api')

	url := 'https://$self.host/_matrix/client/r0/' + urllib.path_escape(api)

	self.call_get('directory/room/$room_id') ?
	return ''

	ret := self.call_get('directory/room/$room_id') ?
	return ret['room_id'].str()

		self.matrix.room_alias(row[1]) or { println('matrix room nout found') }

		if room_id := self.matrix.room_alias(row[1]) {
			self.matrix.join(room_id)
		} else {
			println('matrix room $row[1] not found')
		}