undefined image url using cloudinary

cloudinary.uploader.upload(fileName, function(response)
            {
                var picture=new Pic();
                picture.name= req.body.name;
                picture.description=req.body.description;
                picture.url=response.secure_url;
                console.log('Image secure_url is' + response.secure_url);
                picture.save();
                res.status(200).end();
                console.log('This the response '+ res);
            });

Here's the code where the issue is

response.secure_url

returning nothing and showing undefined

via Asad Arshad