def showroom_get_roomid_by_room_url_key(room_url_key):
    """"""
    fake_headers_mobile = {
        'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
        'Accept-Charset': 'UTF-8,*;q=0.5',
        'Accept-Encoding': 'gzip,deflate,sdch',
        'Accept-Language': 'en-US,en;q=0.8',
        'User-Agent': 'Mozilla/5.0 (Linux; Android 4.4.2; Nexus 4 Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.114 Mobile Safari/537.36'
    }
    webpage_url = 'https://www.showroom-live.com/' + room_url_key
    html = get_content(webpage_url, headers = fake_headers_mobile)
    roomid = match1(html, r'room\?room_id\=(\d+)')
    assert roomid
    return roomid