Node js socket explanation

Question

I am building an application that will be making about a million calls to a remote api server. Will I be able to limit amount of connections to for example 10? Do I set max

Answer 1

I decided to use the async library.

Here is my complete solution to this:

var async = require('async')

var http = require('http');

var inputData = [];

for(i=1; i<=2000;i++){
    inputData.push('number' + i);
}

var options = {
    host: "o2.pl",
    path: "/static/desktop.css?v=0.0.417",
    port: 80
}

function fetchData(number, callback){

    return new Promise(function(resolve, reject){

        fetch  = function(resp){
            var body = '';
            resp.on('data',function(chunk){
                body += chunk;
            })
            process.stdout.write('.')

            callback()

            resp.on('error',function(err){
                console.log('error');
                console.log(err);

            })
        }
        var req = http.request(options, fetch);

        req.end();

    })
}

function foo(item, callback){

    return callback(false, 'foo');
}

async.mapLimit(inputData,100,fetchData,function(err, result){
    console.log('finished');
})

Thank you for your help.