How to set the location response HTTP header in Express framework?

Question

How to set the location response HTTP header in Express framework?

How to set the response Location HTTP header in Express? I've tried this, but it's not working:

  Controller.prototype.create = function(prop, res) {
    var inst = new this.model(prop);

    inst.save(function(err) {
      if (err) {
        res.send(500, err);
      }

      res.location = '/customers/' + inst._id;
      res.send(201, null);
    });
  };

This code is persisting a new document into MongoDB, and upon competition sets the location and send a 201 response. Got this response, no Location header is set:

HTTP/1.1 201 Created
X-Powered-By: Express
Content-Length: 0
Date: Mon, 18 Feb 2013 19:08:41 GMT
Connection: keep-alive

EDIT: as uʍop ǝpısdn (cool nick btw) answer, res.setHeader works. But why res.location doesn't?

node.js
http-headers
express

Answer 1

The res object exposes setHeader():

res.setHeader('Location', foo);

Try that instead of res.location.

Answer 2

you're setting res.location. res.location is a function.

res.location('/customers/' + inst._id)