Little Lua script for tracking page views

gistfile1.lua

local aggreate_exists = redis.call('exists', KEYS[1]);
if (aggreate_exists == 0) then
  redis.call('hset', 'flushed', 0);
end

redis.call('hincrby', KEYS[1], 'visits', 1);
local uuid_exists = redis.call('hexists', KEYS[1], ARGV[1]);
if (uuid_exists == 0) then
  redis.call('hset', KEYS[1], ARGV[1], nil);
  redis.call('hincrby', KEYS[1], 'uniques', 1);
end
return redis.status_reply('OK');