How to make multiple http call requests (Nodejs )

Need server script for calling many url’s synchronously . I tried on nodejs . but wordpress wp-cron.php url gives 500 error’s 6 out of 10

var http = require('http');
var request = require('request');
var conn=[];
for(var i=0;i<100;i++){
conn[i]=request('http://www.example.com/site/wp-cron.php', function (error, response, body) {


if (!error && response.statusCode == 200) {
      }
     console.log(response.statusCode);
    });
   }

Any suggestion to achieve my objective ?