nodejs multiple http requests in loop

Question

I'm trying to make simple feed reader in node and I'm facing a problem with multiple requests in node.js. For example, I got table with urls something like:

urls = [ "http://url1.com/rss.xml", "http://url2.com", "http://url3.com"]; 

Now I want to get contents of each url. First idea was to use for(var i in urls) but it's not good idea. the best option would be to do it asynchronously but I don't know how to make it.

Any ideas?

EDIT:

I got this code:

var data = []; for(var i = 0; i<urls.length; i++){     http.get(urls[i], function(response){     console.log('Reponse: ', response.statusCode, ' from url: ', urls[i]);     var body = '';     response.on('data', function(chunk){         body += chunk;     });      response.on('end', function() {         data.push(body);     }); }).on('error', function(e){     console.log('Error: ', e.message); }); } 

Problem is that first is call line "http.get..." for each element in loop and after that event response.on('data') is called and after that response.on('end'). It makes mess and I don't know how to handle this.

Answer 1

I know this is an old question, but I think a better solution would be to use JavaScripts Promise.all():

const request = require('request-promise'); const urls = ["http://www.google.com", "http://www.example.com"]; const promises = urls.map(url => request(url)); Promise.all(promises).then((data) => {     // data = [promise1,promise2] });