local function handle(res)
    local actions = {
        w = turtle.forward,
        a = turtle.turnLeft,
        s = turtle.back,
        d = turtle.turnRight,
        l = turtle.place,
        j = turtle.dig,
        i = turtle.up,
        k = turtle.down
    }

    if actions[res] ~= nil then
        actions[res]()
    end
end

while true do
    http.request("http://localhost:8080")

    local event, url, res = os.pullEvent()

    if event == 'http_success' then
        handle(res:readAll())
    elseif event == 'http_failure' then
        printError("HTTP request failed.")
        return
    end
end