function GET(req)
    return 200, {
        message = "Hello World!",
        timestamp = os.time(),
        path = req.path
    }
end

function POST(req)
    local data, err = json.decode(req.body)
    if err then
        return 400, {error = "Invalid JSON"}
    end

    return 200, {
        success = true,
        received = data,
        path = req.path
    }
end