Node.js - How to get stream into string

Question

Node.js - How to get stream into string

I have got stream and I need to get stream content into string. I stream from internet using http.get. I also write stream into file, but I don't want to write file and after that open the same file and read from it... So I need to convert stream into string Thanks for all advices...

string
node.js
stream
node.js-stream

Answer 1

So,

I have this:
var centent = '';
var adress = "http://www.google.cz";
var request = http.get(adress.trim(), function(response) {     
      //I need to get content of http stream into variable content and after that continue        
}

I was thinking, that this will work, but it doesn't

    var http = require('http');

var string = '';
var request = http.get("http://www.google.cz", function(response) {       
    response.on('data', function(response){
      string += response;

  }); 
    response.on('end', function(string){
      console.log(string);
    });  
  });

Answer 2

Instead of using the second nested function, try the toString() method on the stream. This can then be piped wherever you want it to go, and you can also write a through() method that can assign it to a variable or use it directly in the one function.

var http = require('http');

var string = '';
var request = http.get('http://www.google.cz', function (err, data){
  if (err) console.log(err);
  string = data.toString();
  //any other code you may want
});
//anything else

One last note--the http.get() method takes two parameters: the url, and a callback. This requires two parameters, and you may have been getting nothing because it was an empty error message.