rstart

A NodeJS health-checker

What does it do?

rStart check if a url is available in a period that you define. If the http response code isn't 200 it exec a bash command, something like restart the nodejs server, whatever.

Example

var rstart = require('rstart');
var checker = new rstart("http://127.0.0.1:31000/", "ls", "* * * * * *");
// \/ if you don't want wait to check use \/
// checker.check();

// receive the response
checker.on('response', function(response, stdout) {
  // do anything with the response and stdout
  // response -> it could be 'OK' or 'FAIL'
  // stdout -> string with the response of the command executed
});

Constructor explained

var checker = new rstart("http://127.0.0.1:31000/", "ls", "* * * * * *");

Arguments in order:

• Url to be checked (ex: http://127.0.0.1:31000/)
• Command to be executed (ex: ls)
• Cronjob time command (see also cron)