Nodejs writing raw image data to jpeg file?

Question

I get data from a request for receipt. The data (in the response body) looks something like this:

... ÿÀ   " ÿÄ              ÿÄ N  !1"AQa2q¡#BR±ð3brS²ÁÂÑá$ñCDTst¢³&45dÃÒÿÄ            ÿÄ -      !1A"Qa¡ðq±ÁÑ2áÿÚ   ? û." """ """ """ """ """ """ """ """ """ """ """ """ """ """ """ """ """ """ """ """ """ """ """ """R1º#ª¥7Jíî½M6îNö ]·!]=Fv­ß`7~qÆee²%·JokkZüCbìþ<ù{ã9öùË®´(%A,Ià 2I?t×bn6wÆù¥V 2SÀ><k5ºÙØ92EhÎçü¨/aÝ!ã|ñþ¥ñßT}U«¦ÒÚµ«xuÕfƳ KØ {ù{ð$·DúBMZÆcp}´R|Mä2ó8üg)·ùôfõ$zXiRÞü}óÆ>,êÚûíR5ý:\ .....

response headers are as follows:

HTTP/1.1 200 OK
Content-Length: 26965
Access-Control-Allow-Origin: *
Content-Type: image/jpeg; charset=UTF-8
Date: Mon, 06 Feb 2012 21:14:21 GMT
Expires: Mon, 06 Feb 2012 22:14:21 GMT
Cache-Control: public, max-age=3600
Last-Modified: Fri, 13 Feb 2009 23:31:30 GMT
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block
Server: Dropta Server 1.0
X-Frame-Options: SAMEORIGIN
Connection: close

I want to get the contents of the body, which is my image data, and save it in a file name.jpegon the server.

How can i do this? I tried to use buffers in combination with the module fs, but I seemed to lose.

thank

Answer 1

Here is an example that downloads http://upload.wikimedia.org/wikipedia/commons/1/15/Jagdschloss_Granitz_4.jpg inname.jpeg

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

var f=fs.createWriteStream('name.jpeg');

var options={
    host:'upload.wikimedia.org',
    port:80,
    path:'/wikipedia/commons/1/15/Jagdschloss_Granitz_4.jpg'
}

http.get(options,function(res){
    res.on('data', function (chunk) {
        f.write(chunk);
    });
    res.on('end',function(){
        f.end();
    });
});

Answer 2

, Stream.pipe:

var http = require('http'),
    fs = require('fs'),
    imgSource = 'http://upload.wikimedia.org/wikipedia/commons/1/15/Jagdschloss_Granitz_4.jpg';

http.get(imgSource, function(res) {
  res.pipe(fs.createWriteStream('wiki.jpg'));
});