How to post an uploaded file with http?

How would I do the equivalent of this in an express app? That is, posting a file to facebook:

curl -F 'access_token=xyz' \
    -F 'source=@file.png' \
    -F 'message=Caption for the photo' \
    https://graph.facebook.com/me/photos

I'm using the following to upload the file from the example in the repo:

app.post('/', function(req, res, next){
 req.form.complete(function(err, fields, files){
开发者_高级运维   if (err) {
     next(err);
   } else {
     console.log('\nuploaded %s to %s'
       ,  files.image.filename
       , files.image.path);
     res.redirect('back');
   }
 });
})

---

Take a look at the request-module, which makes it (almost) too easy:

fs.readStream('file.png').pipe(request.post('http://graph.facebook.com/me/photos'))

This will create a POST-request to the given URL and stream file.png though it. It should be fairly trivial to add the remainder of your fields.

---

You can create an HTTP request with Node. See the following example in the docs:

http://nodejs.org/docs/v0.4.0/api/http.html#http.request