Get the whole response body when the response is chunked?

Question

I\'m making a HTTP request and listen for \"data\":

response.on(\"data\", function (data) { ... })

The problem is that the response is chun

Answer 1

In order to support the full spectrum of possible HTTP applications, Node.js's HTTP API is very low-level. So data is received chunk by chunk not as whole.
There are two approaches you can take to this problem:

1) Collect data across multiple "data" events and append the results
together prior to printing the output. Use the "end" event to determine
when the stream is finished and you can write the output.

var http = require('http') ;
http.get('some/url' , function (resp) {
    var respContent = '' ;
    resp.on('data' , function (data) {
        respContent += data.toString() ;//data is a buffer instance
    }) ;
    resp.on('end' ,  function() {
        console.log(respContent) ;
    }) ;
}).on('error' , console.error) ;

2) Use a third-party package to abstract the difficulties involved in
collecting an entire stream of data. Two different packages provide a
useful API for solving this problem (there are likely more!): bl (Buffer
List) and concat-stream; take your pick!

var http = require('http') ;
var bl = require('bl') ;

http.get('some/url', function (response) {
    response.pipe(bl(function (err, data) {
        if (err) {
            return console.error(err)
        }
        data = data.toString() ;
        console.log(data) ;
    })) 
}).on('error' , console.error) ;