Running Lua Script in Redis from Nodejs Client

gistfile1.txt

-- setnex.lua
local key = ARGV[1]
local expiry = ARGV[2]
local value = ARGV[3]
local reply = redis.call("SETNX", key, value)
if 1 == reply then
  redis.call("EXPIRE", key, expiry)
end
return reply
You can call it from node_redis like this:

client.eval(setnex_lua, 0, "mykey", 10, "myvalue", function (err, res) {
    console.dir(err);
    console.dir(res);
});