executing redis eval command to run Lua script in nodeJS

Question

In Redis I run a Lua script through CLI like this:-

$ redis-cli --eval debug_script.lua key1 key2 key3 key4 , arg1 arg2

So, my Lua script a

Answer 1

Found some solutions:

Solution 1 )

var redis = require('redis')
var client = redis.createClient()
var fs = require('fs')

client.eval(fs.readFileSync('./debug_script.lua'), 4, key1, key2, key3, key4, arg1, arg2, function(err, res) {
  console.log(res);
});

Note: 4 (second argument of eval) represents the number of keys to be passed in the script.

Solution 2) Creates a child process and run CLI command.

var redis = require("redis");
var client = redis.createClient();

var exec = require('child_process').exec;

var cmd = 'redis-cli --eval debug_script.lua key1 key2 key3 key4 , arg1 arg2';


exec(cmd, function(error, stdout, stderr) {
    // command output is in stdout
        console.log("something happened \n");
        console.log(stdout);
    });