Handling image data in express

function imageService(req,res) {

    var mongoose = require('mongoose');
    var ImageAsset = require('../models/imageModel.js');=
    var path = require('path');
    var fs = require('fs');
    var uuid = require('node-uuid');

var uploadedImage = req.files.imageField;

    var tempPath = uploadedImage.path;
    fs.readFile(tempPath, function (err, imageData) {
        var imageName = uploadedImage.name;
        if (!imageName) console.log("There was an error");
        else {

            var newPath =uuid.v1(); //Save it with a newName
            var contentType = uploadedImage.headers["content-type"];
  		fs.writeFile(newPath, uploadedImage, function (err) {
        	if (err) console.log("Unable to writeFile:" + err);
        	newImageData = {
            		filePath: newPath,
            		mimeType: contentType,,
            		assetType: imageAssetType
        		};
		//Save the image information in some database
		// imageModel contains schema model for the collection

		//open db connection and handle accordingly
        	var newImageAsset = new ImageAsset(newImageData);
        	newImageAsset.save(function (err) {
            		if (err) console.log(err)
			}
		}
	});
}